Read This Before You Buy a Tankless Water Heater
Consider the following: The method used by the majority of houses in this nation to heat water is ridiculously inefficient. Every year, we fill up large storage tanks of 40- to 50-gallon capacity with water and then continuously pump energy into them to ensure that we have hot water available anytime we want it. But, unfortunately, this is not always the case. The wait for the tank to reheat might be lengthy if a teenager is taking a long shower or the spouse is enjoying a long soak in the tub.
Is there a chance of a leak?
Tankless Water Heater Installation: Is It Worth It?
Investing in a tankless water heater has a number of benefits, as detailed above. It creates hot water just when you use it and for as long as you require it, resulting in a reduction of 27 to 50% in fuel expenses when compared to tank-type heaters. (A typical gas-fired tank wastes 40 to 50% of the fuel it burns, according to the manufacturer.) As a result, there is virtually little danger of a catastrophic leak occurring because there is no tank to collapse. Furthermore, since their introduction in the United States in the 1990s, tankless heaters have become increasingly sophisticated, with features such as built-in recirculating pumps (which provide “instant” hot water) and wireless connectivity, which alerts you via smartphone when a unit requires servicing.
Our tankless water heater guide will explain how they function, what you should know before purchasing one (and before the installation comes), and the idiosyncrasies of how they operate so that you won’t be caught off guard if you decide to go tankless.
How Does a Tankless Water Heater Work?
Doug Adams created the illustration.
- It all starts with the first turn of the hot-water faucet (1). A flow sensor (2) detects the presence of water entering the heater and sends a signal to the control panel, causing the heater to begin generating hot water. During operation of a natural-gas-fueled unit, thecontrol panel (3) activates thefan (4), which pulls in outside air, opens the gas valve (5), which allows the gas to flow into the unit, and ignites the burner (6). In order to transmit heat from the flames to water passing through the exchanger’s tubing, a heat exchanger (number 7) is used. The mixing valve (8) regulates the temperature of the superheated water that exits the exchanger. Whenever the temperature sensor (9) detects water temperatures that are too high or too low for the intended setting, the panel will modify the gas valve, the mixing valve, and the flow-regulating water valve (10) in accordance with the results. Ventilation is provided by a sealedvent (11) (or a couple of vents) via a roof or exterior wall, which removes exhaust gases and supplies combustion air to the burner.
Several people were thanked for their contributions: Phillip Maxwell, Residential Product Manager, Rheem; Eric Manzano, Product Training Supervisor, Noritz; Joe Holliday, Senior Vice President, Product and Business Development, Rinnai; and Fred Molina, Water Heater Products Manager, Bosch Thermotechnology
What to Know About Tankless Water Heaters
Thanks to Noritz for the use of his photo.
How Much Does a Tankless Water Heater Cost?
Prices range from approximately $170 for modest gas-fired units to more than $2,000 for high-output heaters that can serve two showers at the same time; $1,000 is a reasonable starting point for most buyers. Electric heaters without a tank range in price from $90 to $900. The expenses of a first-time installation are higher than the price of a simple tank replacement. Electric tankless water heater installation (see item below headed “Installing an Electric Tankless Water Heater”).
How to Install a Tankless Water Heater
This is a work that should be left to the professionals, since it entails creating leak-free water, vent, and gas connections in the case of gas or propane units, or upgrading the wiring and circuit-breaker panel in the case of electric units, and it is best left to the professionals.
Tankless Water Heater Maintenance
Sign up to have a professional do an annual service that includes cleaning or replacing water and air filters, as well as inspecting the burner’s operation.
The use of a vinegar flush every 500 hours in places with hard water prevents mineral accumulation, known as scale, from blocking the heat exchanger. That 20-minute task may be completed by a professional or by a homeowner.
How Long Do Tankless Water Heaters Last?
It is expected that gas-burning tankless water heaters would last 20 years or longer, which is two to three times longer than tank-type heaters. Tankless electric units have shorter life lifetimes, ranging from 7 to 10 years, compared to conventional units.
Where Can I Buy One?
They may be found at plumbing supply stores, big-box stores, and internet sellers, among other places. Alternatively, you may order one via your plumber.
Pros and Cons of Tankless Water Heaters
Thanks to Noritz for the use of his photo.
PRO: They’re Compact
As a result of new federal requirements requiring stronger insulation to decrease standby heat loss, the size of newer tank-type water heaters has increased. Consequently, they may not be able to fit into locations where an older heater with the same capacity might. Tankless gas heaters are approximately the size of a suitcase and are mounted on the wall.
PRO: They’re Safer
A tank-type heater, on the other hand, may leak and spill gallons of water if it springs a leak, but it will not house Legionella germs or topple over in an earthquake. The air supply and exhaust vents are also closed to prevent backdrafting, which would otherwise allow carbon monoxide to enter the house.
PRO: They’re Easy to Winterize
Owners of vacation homes are well aware of how long it takes to drain a water-heating tank prior to closing up a house for the season. An electric compressor may drain a tankless heater in a matter of seconds, after which it can simply be unplugged.
CON: They’re Sensitive to Slow Flow
These devices automatically shut off if there is too much scale accumulation in the pipes, or if the aerators in the faucets and showerheads get blocked, or if a turned-down faucet limits water flow to around 0.3 gpm.
CON: The Payback Takes Awhile
An annual savings of only around $100 for a household using a $1,000 tankless gas heater vs a $400 tank-type heater is possible, depending on how efficient the heater is and how much hot water is utilized. The savings, however, begin to accrue after six years, when many tanks are reaching the end of their useful lives due to the extended lifespan of tankless gas systems.
New Tankless Water Heater Technology
Thanks to Noritz for the use of his photo. The advancement of tankless technology is ongoing. Here are a few of the most recent enhancements:
Condensing gas heaters can extract up to 96 percent of the heat from a fuel, which is a 17 percent improvement over first-generation tankless devices. This is possible because of a second heat exchanger, which collects a large portion of the exhaust heat before it exits the vent. In addition to being around 25% more expensive than noncondensing heaters, condensing heaters produce acidic condensate that must be neutralized. If a heater doesn’t come with a built-in neutralizing cartridge, the installation will have to install one after the fact.
Instant Hot Water
Despite the fact that tankless water heaters heat water in around 15 seconds, you must still wait for the hot water to reach your shower head or faucet, just as you would with a tank-type heater. The recirculation pump should be used when the distance between the heater and the fixture is greater than 50 feet. This will conserve water and minimize the amount of time spent waiting. It is this pump that pushes the cold water in the pipes back through the heater.
The pump can be activated by a timer, a push button, a motion sensor, a smart speaker, or a smartphone (see illustration above). The pump shuts off after approximately a minute, and you may start using hot water immediately after opening the faucet.
Tankless systems with digital connectivity let you to control the temperature as well as monitor gas and hot-water use from your mobile device. Furthermore, the device is capable of identifying the cause of a problem. Please communicate this information to your plumber so that he or she may arrive on the job site knowing exactly what has to be done. This function also eliminates the need for any guessing when it comes to determining when it is time to descale.
Tankless Water Heater Rebates: A Great Way to Save
Carl Tremblay captured this image.
What Size Tankless Water Heater Do I Need?
Here’s how the specialists ensure that your water heater produces adequate hot water: 1. A large burst of BTUs is required for a tankless heater to convert cold water into hot water in a matter of seconds. However, if a heater’s Btu output is insufficient to meet demand, it will reduce the flow rate or, in the worst scenario, offer tepid water. A plumber considers three aspects when determining whether or not a heater will be able to satisfy the demands of a household:
- The temperature of the water that enters the heater
- The maximum demand for hot water expressed in gallons per minute (gpm)
- The efficiency of the heater, as shown by its Uniform Energy Factor, which may be found in the product specifications
- The first step is as follows: A professional determines how many Btus per gallon of water heater is required to increase the incoming water temperature to 120 degrees (see the map on the next slide)
- Flow rates for all of the appliances and fixtures that may be consuming hot water at the same time are added together to form peak demand, which is calculated as follows: (These rates are detailed in the next slide.) As a result of not bathing or washing in 120-degree water, we save around 20% on our overall use. Water-saving fixtures and appliances, as well as delaying laundry while the shower is in use, can help you minimize peak consumption. In the calculation, the total Btu production is computed by inserting the Btus-per-gallon and peak-demand amounts in at different points along the way. If the difference in output is between two models, go with the one with the greater Btu rating to save money. You’ll also need two smaller units that function in tandem if your output is greater than 198,000 Btus, which is the limit for domestic gas heaters.
Btus Output Estimate
Not interested in completing the calculations? Make a rough estimate of how much heater output you’ll want using these statistics.
- The following figures are for one bathroom for one to two people: 140,000 Btus
- Two bathrooms for two to three people: 190,000 Btus
- Three bathrooms for three to five people: 380,000 Btus
Btus Per Gallon by Region
- Kitchen or bath faucets should flow at 1.5–2.2 gpm
- Tub filler faucets should flow at 4 gpm
- Dishwasher: 1–2.5 gpm
- Washing machine: 1.5–3 gpm
- Showerhead should flow at 1.25–2.5 gpm
How to Determine gpm?
To get the real gpm of a fixture, time how many seconds it takes to fill a bucket to the 1-quart mark and multiply that time by the number of gpm. gpm is calculated by dividing 15 by the number of seconds in a minute.
Electric Tankless Water Heater Facts
Thanks to Stiebel and Eltron for their assistance. In addition to gas lines and propane tanks, tankless water heaters operated by electricity can provide the benefits of on-demand hot water to homes that do not have them. Compared to gas or propane tankless heaters, these systems, which heat water using thick copper rods, are significantly quieter and roughly a third smaller in size. And because they do not require vents, they can be fitted practically anyplace, even beneath sinks and in small closets, without compromising performance.
In locations with warm groundwater, that amount of hot water may be sufficient to feed a whole house; but, in colder climates, they are better suited to point-of-use service, where the demand for hot water does not become excessive.
Furthermore, electric heaters have a lifespan that is approximately half that of gas heaters: Warranty periods typically range from three to five years.
Tankless Water Heater Installation
Doug Adams created the illustration. What you and your plumber should look for before the installation day is as follows:
If you want your tankless heater to work effectively, you must connect it to a gas supply line that supplies enough volume at a high enough pressure to run the burner. In many circumstances, this will need increasing the diameter of the supply pipe to 3-4 inches in diameter. Furthermore, if the pressure is insufficient, the gas provider will be required to change the regulator on the meter.
For your information, some tankless systems, like as ones manufactured by Rheem, are capable of working with a regular 12-inch gas line as long as it is not more than 24 feet in length.
Tankless gas heaters that do not condense employ stainless-steel vents that can resist high exhaust temperatures. Condensing systems feature a cooler exhaust and use PVC pipes, which are less costly than other types of exhaust. Installing a concentric vent, which has an exhaust pipe inside a larger air-intake pipe, is easier than installing a traditional vent since only one hole in the wall needs to be made. As a point of reference, vent runs have traditionally been limited to a maximum of 10 feet.
Heat transmission is slowed and water flow is restricted when scale deposits accumulate in a heat exchanger (or on electric heating components) over time. If you currently have whole-house water softening, scale will not be an issue for you. However, if your water is not being softened and its hardness surpasses 120 milligrams per liter, it is worthwhile to invest in a treatment system to remove the hardness. For your information, a specific, point-of-use cartridge, such as the TAC-ler water conditioner (Stiebel Eltron), can be used to change the hardness of water without the use of salt or other chemicals.
Outdoor Tankless Water Heater
Matt Risinger captured this image. If your environment and local rules allow it, think about the advantages of hanging a heater outside in the winter.
- Saves space: You won’t have to create place for another appliance in your home as a result of this. Installation is straightforward: Because of the built-in exhaust vent, there is no need to drill a large hole (or two) through the side of the building. Service is simple: A plumber may come to your home at any time, whether or not you are there. However, take in mind the following: Regulations governing construction: If you want to install it outside, you may require approval from your local building department. Weather conditions that are cold: Even at temperatures as low as 22 degrees Fahrenheit, internal heaters keep components warm, but exposed water lines must be insulated and covered with heat tape that activates automatically in freezing conditions. Southern states are less concerned about frozen pipes than those located north of the Mason-Dixon Line.
Tankless Water Heater Venting
Carl Tremblay captured this image. Are you in need of assistance with repairs around your home? A house warranty may be of assistance. The This Old House Reviews team has put up some in-depth guidelines that you can read here:
- Home warranty providers that are the best
- Reviews of American Home Shield, AFC Home Club, Select Home Warranty, and Choice Home Warranty are all available.
How Much Does A New Tankless Water Heater Cost?
We at Bankrate are dedicated to assisting you in making more informed financial decisions. Despite the fact that we adhere to stringent guidelines, this post may include references to items offered by our partners. Here’s what you need to know about There are few things in life that are more unpleasant than taking a hot shower only to be met with water that is so cold it seems like it has come straight from a melting glacier. A tankless water heater is one method to ensure that you never again have to take a cold shower when you least expect it.
The entire cost is determined on the model selected as well as whether or not your home requires retrofitting.
Tankless vs. traditional
Understand the differences between tankless and regular water heaters may be easier if you look at this chart. A typical water heater warms and stores water in a tank with a capacity of 30 to 50 gallons, depending on the manufacturer. The heated water remains in the tank until it is required, and when it is consumed, the tank is refilled and the preheating process is repeated. A tankless water heater heats water on demand by using either electricity or natural gas as a fuel source. As a result, as soon as you switch on the dishwasher or step into the shower, the water that is required is heated at the source and is instantly available for use.
When making home upgrades such as installing a tankless water heater, a home equity line of credit (HELOC) is a wonderful option. Check out our guide to obtaining the best rate on a home equity line of credit.
Electric or gas?
A tankless water heater has a price tag of around $1,500. The answer is dependent on whether you opt for an electric or a gas-powered type of the vehicle. The following are some variables to consider while deciding between the two options:
- There is a one-time fee. For $500-$700, you can have an electric model, while for $1,000-$1,200, you can get a gas model. Cost of installation: The cost of installing the device and upgrading utility hookups is between $1,000 and $2,000, depending on local expenses and the amount of work that has to be done. Gas versions require the installation of a safe ventilation system, whereas electric ones do not, making the installation of gas models more expensive. Cost of utilities: Gas may be less expensive to run than electricity depending on the cost of utilities in your location. Gas-powered machines require yearly maintenance, but electric-powered units are not required. An electric tankless water heater has no negative influence on the environment since it emits no greenhouse gases and is easy to recycle at the end of its useful life.
Benefits of a tankless water heater
A tankless water heater consumes 30 to 50 percent less energy than a traditional water heater, resulting in annual savings of more than $100 for the average household on heating bills. Instead of wasting 30 percent of its energy, a tankless water heater wastes just 5 percent, according to Energy Star. Although you may have to wait a few seconds for the water to heat up at the source, a tankless water heater ensures that you will never run out of hot water in your home. A tankless water heater is more compact and takes up less space than a standard water heater.
Lastly, a standard water heater has an average lifespan of eight to ten years, but the average lifespan of a tankless water heater is closer to twenty years.
Disadvantages of a tankless water heater
It is more expensive to purchase and install a tankless water heater upfront than it is to purchase and install a regular water heater. In fact, depending on the unit and the amount of retrofitting your home required, it might cost up to twice as much as a standard unit. It might take up to ten hours to complete the installation due to the level of skill required. The time it takes for hot water to be heated and supplied is longer. You may encounter what is known as a “cold water sandwich,” which occurs when the hot water is switched on but does not have enough time to heat up properly.
The final word
It is possible to use a tankless water heater when rebuilding your house or building a new one, or while staying at home on a part-time basis and do not want to be concerned about a leaky hot water heater while you are gone. Unless you have professional-level installation abilities, installing a tankless water heater is not a do-it-yourself effort. Despite the fact that they can be purchased online or at your local home improvement shop, it is better to leave installation to the professionals because it may be necessary to adapt your home in order for the water heater to function effectively.
It is possible that a tankless water heater will be less expensive in the long term when yearly energy savings and the fact that you will only have to replace it half as frequently as a standard unit are taken into consideration.
Tankless Water Heaters Cost Breakdown & Buyer’s Guide
The most recent update was on February 21, 2022. When purchasing a new on-demand hot water system, the price will vary depending on a number of factors, including the fuel type, system size, and any extra wiring or piping improvements that may be necessary.
While the initial cost of installing tankless hot water may appear high when compared to standard tanked water heating solutions, the long-term savings associated with installing tankless hot water may frequently more than compensate for the initial investment.
How much does a tankless water heater cost?
While tankless water heater prices can range anywhere from $170 to $2,000, on average, you should expect to pay something in the neighborhood of $1,000 dollars. In the case of small gas-fueled tankless water heaters, you may pay as little as $170, but for larger units that can deliver water to numerous appliances at the same time, you could pay as much as $2,000 or more. The type of fuel used in a tankless water heater has the greatest impact on the initial cost of the unit. As a general rule of thumb, gas-powered hot water systems are often two to three times more expensive than electric alternatives.
In order to purchase and install an entire home tankless water heater fueled by natural gas, you may expect to pay up to $3,000 in equipment and installation costs.
Electric units are normally around $600, while gas units are often around $1100.
In this post, you will learn more about your tankless water heater alternatives as well as how to compare them.
Factors that determine your tankless water heater cost
There are several elements that influence the overall cost of installing a tankless hot water system, including the type of fuel you use, the size of your equipment, and its overall condition.
A tankless hot water system can be powered by either natural gas or electricity, depending on your preferences. Typically, gas-powered units are two to three times more expensive than electric units, although the price difference can vary depending on a variety of other factors. Consider the price of gasoline as one element to consider. It is true that electricity is a slightly more expensive fuel for a tankless hot water heater when compared to natural gas, but it is also true that regardless of the fuel type that you choose, you will most likely pay a similar amount for fuel throughout the lifetime of the system because the differences in fuel costs are small.
With one additional wrinkle: it is projected that the price of natural gas would rise at a faster rate than the price of electricity, implying that electric units will only become more economically beneficial over the long term.
It is also vital to take into consideration the system size, which relates to how much hot water can be produced by a certain tankless water heater and hence how much it will cost. In order to evaluate system sizes amongst on-demand water heaters, the easiest method to do so is to look at their gallon per minute rating, also known as GPM. In general, the greater the GPM, the higher the expense of your equipment will be to operate. Your required gallon per minute is determined by the number of appliances you need to operate at any particular time period.
For two bathrooms, the flow rate is 8-9 GPM, and for three or more bathrooms, the flow rate is 9-11 GPM.
GPM ratings for tankless water heaters are provided by the manufacturers and are generally found on the box, however this is a best-case scenario statistic that should not be taken out of context without further investigation.
Continue reading our tankless water heater comparison post to learn more about how to choose the best tankless water heater for your needs based on the genuine GPM it produces.
Installation complexity and additional upgrades
In most cases, tankless water heater installation costs range from $800 to $3,500 on average. Additional installation expenses might raise the price of your initial purchase. For example, if you want an electrician to rewire your home systems in order to accommodate an energy-intensive electric equipment, you may be required to pay them up to $100 per hour for their services. For example, if you want the services of a home contractor to update your gas lines (which may cost as much as $750), the amount you pay up front will cover more than just the cost of water heater equipment and standard installation.
Using a point-of-use system against a whole-house system Tankless water heaters are available in a variety of sizes depending on whether the equipment is a “point-of-use” type or a “whole-house” one.
Point-of-use systems are more frequently fueled by electricity than by natural gas.
Tankless water heater rebates and incentives
Unfortunately, the federal tax credit for household energy efficiency measures (which included gas-powered tankless water heaters) expires in 2016, making tankless water heaters no longer eligible. Certain governments and utilities, on the other hand, have their own rebate and incentive programs for customers who switch to on-demand hot water. For example, the Mass Save program in Massachusetts provides a reimbursement of up to $700 for the installation of a tankless gas water heater that has been certified by the ENERGY STAR and meets specific efficiency requirements.
Financial benefits of tankless water heaters
On-demand water heaters, according to the Department of Energy, can be anywhere from 8 percent to 50 percent more efficient than typical storage tank water heaters, depending mostly on your water consumption patterns and system type (point-of-use vs. whole-house). This is due to the fact that, in contrast to tank storage systems, only a little amount of water is ever heated and left unused. When it comes to using on-demand hot water, the most effective method is to install separate point-of-use devices at each hot water faucet in your home.
With a tankless water heating system, you can always save money on water heating, regardless of how efficient your individual system is.
If you want to understand more about how tankless water heaters may effect more than just your money, see our article on the advantages and disadvantages of tankless water heaters.
Calculating your payback period with tankless hot water
How long does it take for a tankless hot water system to pay off its initial investment? While you will begin saving money on fuel expenses immediately after installation, the somewhat higher upfront cost of tankless water heaters as compared to storage tank systems means that it will take several years before you “break even” on your investment in a tankless water heater. An investigation by Consumer Reports found that the payback period for tankless water heaters can range from 12 years to 27.5 years, with electric versions at the lower end of the spectrum and gas units nearer to the top of the spectrum.
Environmental impact of tankless water heaters
In addition to the economical advantages of installing an on-demand water heater, updating your property’s hot water system has favorable environmental consequences that should be taken into consideration. Traditional tank-style water heaters are less energy efficient than tankless water heaters, which means that you’ll require less fuel to heat your water. This translates into less electricity being generated from fossil-fuel power plants like as coal, natural gas, and oil, which helps to reduce the amount of greenhouse gas emissions and other pollutants entering the environment.
Solar panels installed on your roof allow you to power your electric water heater (as well as the rest of your home) with free, zero-emission electricity generated by the sun.
As a result of combining your home water heating system with locally generated solar power, you may save money on heating your house’s water supply while also decreasing your dependency on fossil fuels.
A Tankless Job? Decide Whether a Tankless Water Heater Works for Your Home
Stiebel-Eltron, a German business, invented the world’s first electric tankless water heater over 100 years ago today. Despite the availability of an alternative solution, classic water heaters with storage tanks have remained the most popular choice. Tankless designs, on the other hand, have gained in prominence in recent years. This Might Also Be of Interest to You: Listed below is an estimate of the cost to replace a water heater. If you are thinking about replacing your present water heater with a tankless unit, the cost is most certainly your primary consideration.
Is it worth it to pay the extra money?
Why Go With a Tankless Water Heater?
In the casing of a tankless water heater, there are networks of coils that heat the water as soon as it is turned on at the tap or in the shower. They employ heat exchangers to turn energy into practically instantaneous hot water, whether they are powered by gas or electricity. Tankless water heaters do have certain advantages over traditional types that rely on holding water in a reservoir, as previously stated. Compared to tankless solutions, tank-based systems demand much more floor area. In addition to the space required for the tank itself, most building and construction rules stipulate that water heaters must have a minimum of 12 inches of clearance on all sides before they may be installed.
Tankless models, on the other hand, are often mounted to the wall, which allows for more useable area to be created.
Gas and electric tankless alternatives may either be vented up and out, or the surplus heat can be expelled through the sidewalls of your home, depending on your preference. Because of this adaptability, it may be possible to convert certain older homes with a tankless natural gas system.
Gas Vs. Electric Water Heaters: Which is Better?
Water heaters that are electric or hybrid are the most energy-efficient solutions available on the market today. These models have minimum efficiency ratings of 90 percent, while certain hybrid versions that make use of solar technology can achieve efficiency ratings of 95 percent or more. Gas water heaters, on the other hand, often have an efficiency rating ranging between 67 and 80 percent, depending on the model. However, because natural gas is substantially less expensive than electricity, these water heaters can be significantly less expensive to operate when compared to an electric counterpart.
Choosing Between Condensing and Non-Condensing Types of Water Heaters
There are two types of gas or electric water heaters: non-condensing and condensing. Non-condensing water heaters are less efficient than condensing water heaters. Traditionally installed water heaters are non-condensing, which means that once the gas is consumed to heat the water, any extra heat is vented to the exterior of the home. These water heaters typically have an efficiency rating of 80 percent or more at their highest capacity. Many of the most recent tank and tankless gas alternatives are condensing water heaters, which are energy efficient.
These models have minimal heat loss and can reach energy efficiency ratings of 90 percent or more than the industry standard.
Should You Consider Point-of-Use Water Heaters?
Some people have expressed frustration with tank-based water heaters, claiming that they need a long period of time before the water is heated enough to use for dishwashing or taking a shower. The amount of time required varies based on how far away the faucet is from the water heater is located. Many tankless water heater manufacturers promote their products as giving virtually limitless hot water on demand. Despite the fact that these types frequently provide hot water more rapidly, they still need heating the water as it enters your home.
- These point-of-use devices may be installed immediately in the room where you want hot water.
- Each type has its own heating element, which can quickly heat water to a desired temperature.
- If you use a point-of-use water heater for each shower or faucet, you may save up to 50% on your energy bills when compared to using a whole-home water heater, according to Energy.gov.
- First and foremost, point-of-use models must be smaller in order to fit under a sink or next to a shower.
As a result, the flow rate of a tankless POU is normally restricted to two to five gallons per minute at most. Furthermore, there is no system in place to accommodate increased demand. Additional Related Articles:
- Tank-style versus tankless water heater installation costs
- Which is better for my water heater, a question that has been asked for centuries. Instructions on how to keep your hot water heater in good working order
- When your water heater isn’t working, you’ll notice these seven tell-tale signs. Learn how to properly drain a water heater.
How to Find the Right Hot Water Heater Capacity
Traditional water heaters are often equipped with a tank that holds at least 50 gallons of hot water. Larger residences, on the other hand, will have tanks with capacities ranging from 80 to 100 gallons. The tank is used to store hot water so that it is available when you want it. This additional capacity will allow you to operate the dishwasher and the washing machine simultaneously while someone else showers. Tankless water heaters, on the other hand, do not have a storage mechanism. The majority of tankless devices have a capacity of two to twelve gallons of water per minute.
An HVAC professional should be consulted in order to guarantee that your tankless system is properly sized.
- Showerhead flow rates range from 2 to 3 gallons per minute
- Washing machine flow rates range from 2 to 2.5 gallons per minute
- And faucet flow rates range from 1 to 2 gallons per minute.
Things to Know About Tankless Water Heater Costs
Tankless water heaters are connected with a number of extra expenditures in addition to the purchase price of the system itself. It is possible that specialized pipes and connections may be required, which will increase the overall cost. You will also require the services of a qualified HVAC professional to assess your home and establish the minimum flow rates required depending on the number of bathrooms, sinks, and anticipated water use. Comparing tankless water heaters to tank-based water heaters, tankless water heaters feature more complicated connections, regulators, and other critical components.
Water heaters that run on natural gas are also more complicated to install since they require specific three-quarter-inch pipe to ensure that they have adequate natural gas supply to meet the demands of your home’s hot water needs.
Water heaters that run on electricity normally require at least 120 amps to work efficiently.
If you intend to install an electric tankless system, you may need to hire an electrician to run larger energy lines and construct a new electrical panel in order to complete the installation.
Is It Worth It?
So, is a tankless water heater preferable to a conventional tank-based system in this instance? It all boils down to how much money you’re willing to put out as a down payment. Tankless versions have the potential to be substantially more energy efficient than their predecessors. It is possible to get virtually immediate hot water if you install many POU units around your home. As an added bonus, tankless water heaters have a service life of up to 20 years when used continuously, which is more than double the estimated service life of a tank-based water heater.
Tankless designs are frequently more complicated and have a greater number of connections, regulators, and components than traditional water-storage systems.
The importance of being prepared for unexpected repairs with a HomeServe plan cannot be overstated. The knowledge that you can easily call our 24-hour repair hotline in the event of a covered breakdown provides you with peace of mind. Check to see what options are available in your area.
How Much Does A Tankless Water Heater Cost?
Note from the editors: We receive a commission from affiliate links on Forbes Advisor. The thoughts and ratings of our editors are not influenced by commissions. If you are considering making the move from a regular water heater to a tankless water heater that is more energy efficient, your first inquiry is usually, “How much will it cost?” The total tankless water heater cost includes the purchase price of the device as well as installation fees. The pricing range for each item is shown in the chart to the right.
Additionally, you may be interested in the tankless water heaters available at Home Depot.
Propane in a liquid form Performance Platinum 9.5 GPM Liquid Propane Water Heater by Rheem 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series Testimonials from customers Exceptionally well-written 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 4Rinnai V53DeP V Model Series 4Rinnai V53DeP V Model Series 4Rinnai V53DeP V Model Series 4Rinnai V53DeP V Model Series Model Series: Rinnai RL75eP RL Model Rinnai RL75eP Testimonials from customers Exceptionally well-written Model Series: Rinnai RL75eP RL Model Rinnai RL75eP If you’re considering purchasing a propane tankless water heater, you may feel overwhelmed by the number of options available.
Price, customer rating, maximum GPM, heating capacity (in BTUs), and Energy Star certification were all taken into consideration while compiling this top-five ranking.
Average Cost of Tankless Water Heaters
Choosing between installing a whole-house tankless water heater or one or more single-point units is an option when upgrading to a tankless water heater.
Depending on the layout of your home’s plumbing system, a tankless water heater for the entire house may be the best option. With this configuration, a single unit meets all of the hot water requirements of your house on demand. A whole-house system will be more expensive up front than a smaller single-point system, but you will only have to pay for one installation and you may see a reduction in your energy bills.
Installing one or more single-point tankless water heaters in properties where the plumbing is dispersed over a wider area may be a more cost-effective solution. It wastes less water and energy when the unit is closer to the point of water consumption because less time is spent waiting for hot water to arrive at the faucet.
Tankless Water Heater Costs by Size
Tankless water heaters are available in a range of sizes to ensure that a sufficient amount of water is delivered while maintaining the required temperature rise. gallons per minute is the unit of measurement for water volume rating (GPM).
Depending on whether the model is based on combustion or electricity, the heating capacity is expressed in either British Thermal Units (BTU) or kilowatts (kW). Do not attempt to save money by purchasing a tankless water heater that is too small.
Calculate the total GPM of all water outlets that will be used at the same time to determine the appropriate tankless water heater size for your property. In order to take a shower while doing laundry and running the dishwasher, add the GMP for the shower (2-2.5), washing machine (2-2.5), and dishwasher (2-2.5) and divide the total by three (1.5-2). The GPM rate of a tankless water heater should be between 5.5 and 7.5, depending on the model. The flow rates for common household appliances are listed below on a typical basis.
- Showerheads ranging from 2 to 3 GPM
- Older or rain shower heads ranging from 4 to 6 GPM
- Water faucets ranging from 1 to 2 GPM
- Dishwashers ranging from 1.5 to 2 GPM
- Washing machines ranging from 2 to 2.5 GPM
The temperature increase is defined as the difference between the temperature of the entering water and the temperature at which you require the water to be. Tankless water heaters are rated based on the premise that the water is roughly 50 degrees Fahrenheit when it enters the system. For the majority of applications, water must be heated to around 115 degrees Fahrenheit. As a result, a temperature increase of 65 degrees is required (115 – 50 = 65). In cold or warm climates, the beginning temperature will be cooler or warmer, depending on the season.
With the GPM and temperature rise calculations, you may be confident in your selection of the appropriate unit.
- 2 to 4 GPM range from $200 to $700
- 5 to 7 GPM range from $425 to 900
- 8-plus GPM range from $600 to $2500 or more
Tankless Water Heater Costs by Fueling Method
The typical cost of a tankless water heater varies depending on the kind of fuel used. The majority of users prefer either electric or natural gas (natural gas or propane). Models that are powered by electricity are the least expensive to acquire. Gas-powered units are slightly more expensive up front, but they are less expensive to operate on a monthly basis and have greater power. Consumers in areas where heating oil is common may find it to be a more cost-effective alternative. The use of solar energy may be preferable for those looking for an off-grid solution.
- Electricity costs between $450 and $1,500
- Natural gas or propane costs between $500 and $2,000
- Oil costs between $600 and $3,000
- And solar costs between $1,000 and $4,000
You May Also Be Interested In Tankless Water Heaters Available On Home Depot
Testimonials from customers Exceptionally well-written Performance Platinum 9.5 GPM Liquid Propane Water Heater by Rheem Performance Platinum 9.5 GPM Liquid Propane Water Heater by Rheem 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series 3Rinnai RU199iP RU Model Series Testimonials from customers Exceptionally well-written 3Rinnai RU199iP RU Model Series4Rinnai V53DeP V Model Series4Rinnai V53DeP V Model Series5Rinnai RL75eP RL Model Series6Rinnai RL75eP RL Model Series7Rinnai RL75eP RL Model Series8Rinnai RL75eP RL Model Series9Rinnai RL75eP Testimonials from customers Exceptionally well-written Model Series: Rinnai RL75eP RL Model Rinnai RL75eP If you’re considering purchasing a propane tankless water heater, you may feel overwhelmed by the number of options available.
Price, customer rating, maximum GPM, heating capacity (in BTUs), and Energy Star certification were all taken into consideration while compiling this top-five ranking.
Labor Costs For Tankless Water Heaters
After paying for the tankless water heater, the cost of installing it might easily quadruple the total bill. Installation prices vary depending on your present system, the type of unit being installed, the accessibility of the installation area, and a variety of other considerations.
Costs range from $100 to $2,000 or more on average. Installing a basic system presupposes that the site is generally accessible to the installer and that the power supply is available near the installation location. Some minor components and supplies may be included, but further pipe fitting or electrical work may be required, which will increase the overall cost. Speaking of disposal, consult with your installer on how to properly dispose of the old unit. It is possible that some installers will include this in their fee, while others will not.
Converting to a different power source
Costs range from $500 to $1000 on average. If your existing water heater is electric and you wish to replace it with a gas-powered tankless water heater, the cost of the installation will increase. If you need to install an electric tankless water heater to replace a gas-powered conventional water heater, you will need to connect a new circuit to your home’s electrical circuitry.
Costs range from $300 to $1,000. Any expenditures associated with installation may include venting the system, treating hard water, adding an access panel, painting, and other touch-up work as needed. Some of these improvements may be doable on your own, but others may require professional installation, which can add hundreds of dollars to the overall cost.
Tankless Water Heater Maintenance Costs
Hard water can cause difficulties with tankless water heaters, which makes them more prone to failure. Maintenance should be conducted by a professional twice a year to safeguard the investment and ensure that it continues to operate at peak performance. The total cost of preventative maintenance visits ranges from $45 to $200 each visit, depending on the service.
Pros and Cons of Tankless Water Heaters
Even while tankless water heaters have significant advantages over traditional tank water heaters, they may not be suitable for all households. Let’s have a look at the advantages and disadvantages.
- Reduces water use
- Saves space
- Has a long operating life
- Tank heaters are more costly than space heaters. During power disruptions, there is no reserve
- More yearly maintenance is required. More than one unit is required for larger dwellings.
How to Find a Pro to Install Your Tankless Water Heater
When it comes to installing your tankless water heater, you should use an expert plumber like Aplumber. Plumbers are trained professionals who are capable of performing all of the essential water and gas line work, as well as basic electrical wiring. Depending on whether you’re starting from scratch or upgrading an existing electric heater, you may need to hire an electrician to build a new circuit on your electrical panel before proceeding. Make careful to verify references and only hire experts who are licensed and insured, and make sure to ask for recommendations.
Compare Quotes From Top-rated Water Heater Installers
Estimates are provided without obligation.
Tankless water heaters have the potential to reduce energy consumption by 24 percent to 34 percent in houses that consume fewer than 41 gallons of hot water per day, according to the Environmental Protection Agency.
When compared to typical tank water heaters, they also take up far less space and last twice as long.
Is one tankless water heater enough for a whole house?
In many circumstances, a tankless water heater for the entire house is sufficient. The installation of a supplementary point-of-use water heater in bigger homes, or in homes where hot water demands are dispersed throughout the house, may be essential.
Can you run out of hot water with a tankless water heater?
A tankless water heater that has been appropriately sized provides hot water on demand. It never runs out of hot water since it doesn’t store it.
How long does a tankless water heater last?
Compared to standard tank water heaters, tankless water heaters have a lifespan of around 20 years, which is up to double that of a tank heater.
Is a tankless water heater worth the expense?
The initial cost of purchasing and installing a tankless water heater is much higher than the cost of purchasing and installing a conventional water heater. However, the lower energy expenses translate into monthly savings that accumulate fast. Furthermore, because of the longer lifespan of the tankless water heater, it is significantly more cost-effective in the long term.
Tankless Water Heater Cost: Gas & Electric Prices 2022
This page may contain affiliate links, so please keep that in mind. If you purchase a product or service after clicking on one of these links, we will get a commission at no additional cost to you. See our product review method in further detail, or read our FTC affiliate disclosure for more information. Tankless water heaters are more expensive up front than traditional storage water heaters, resulting in a larger price tag and more expensive installation costs. However, operational costs are significantly lower as a result of virtually nil standby losses, which will result in significant savings in the long term.
So, are tankless water heaters a good investment in the long run?
Discover all you need to know in our comprehensive guide below!
- In a nutshell, the following are the cost reasons for tankless water heaters: The cost of a tankless water heater
- Tankless water heater installation costs on average
- Costs of operation and maintenance on a yearly basis
- Whether tankless water heaters are a good investment or not. The best place to purchase a tankless hot water heater
In a Nutshell
Please remember that the majority of the data on this page are estimates! Installing a new tankless water heater with installation can cost anywhere from $250 to more than $5,000 USD, depending on the extent of the job and who you ask. Because this is obviously not very useful, let us break it down a bit more specifically:
It costs roughly $2,000 USD to install a big tankless gas water heater that is very efficient and has several extra features. The smallest point-of-use device costs about $100 USD, while the largest entire home system costs about $2,000 USD. The cost of an electric tankless water heater ranges from $100 USD for a point-of-use model to around $900 USD for a whole-house one, depending on the model. Tankless water heater installation costs around $1,900 – $2,000 USD on average (but the cost to install an electric heater can be as low as $150 USD).
Continue reading for a more in-depth look at the costs associated with this project.
Tankless Water Heater Cost Factors
What is the cost of a tankless water heater?
Answering this question is not as simple as it may appear at first glance. Due to the fact that there are a range of tankless water heater cost considerations to take into account, this is the case. They are as follows:
- Type of system (fuel type, point of entrance or point of usage, and so forth)
- Size of the unit (the number of gallons of hot water that may be delivered per minute)
- The Energy Factor (EF) is a measure of energy efficiency. Features that are unique
- The length and breadth of the warranty on replacement components
Whole House vs. Single Point
Obviously, the distinction between a whole-house system and a single point of use (POU) system is significant. A tankless water heater that provides hot water for the entire house must be significantly larger than a one that merely provides hot water for a single faucet or shower. In comparison, POE electric tankless water heaters have between 10 and 35 kW of power, whilst a POU unit may have no more than 3 kW of power.
Gas Fired vs. Electric Heaters
Tankless gas units are often more expensive than their electric counterparts, according to industry standards.
Natural Gas vs. Propane
When it comes to the initial purchase price of a water heating system, the choice between natural gas and propane makes little difference. Naturally occurring gas is less costly than other energy sources. propane is more energy efficient than natural gas at the same time.
Oil and Solar Water Heaters
We wanted to include tankless water heaters that are powered by oil and solar energy for the sake of completeness. They are both extremely rare and in the same price range as gas-fueled water heaters, which is a good thing.
Tankless Water Heater Prices
- Small point-of-use systems start at a little more than $100 USD and go up from there. When equipped with 35,000 BTU (BTU is an abbreviation for “British Thermal Unit” and is used to measure a system’s heating power), they can deliver 1.5 to 2 gallons of water per minute
- The largest residential whole house tankless gas water heaters can deliver up to 199,000 BTU and deliver up to 10 or 11 gallons per minute. Cost: Approximately $2,000 USD
- Most tankless gas devices cost between $500 and $1,200 USD and have maximum flow rates ranging from 6 to approximately 11 gallons per minute. From 70,000 to 199,000 BTU, there are several options.
Rinnai is the manufacturer of our number one whole house gas tankless water heater.
- Extremely high quality
- Unlimited hot water for homes with up to 212 bathrooms (maximum flow rate of 6.5 gpm)
- There are options for both natural gas and propane
- Full remote control is available using a mobile application.
Marey GA10LP Power is intended for point of use.
- Excellent price-performance ratio
- Flow rates of up to 3.1 gpm are ideal for point-of-use applications. Installing it almost anywhere is simple because it is small and takes up little space. Allows you to customize the flow of gas and water to meet your specific requirements. Warranty of five years
Electric Tankless Water Heater Prices
- Approximately $100 USD is the cost of the smallest POU electric tankless water heater. Their highest rated water flow is 3 kW, and their maximum power output is 3 kW. 5 to 1 gallon per minute is the flow rate. In this price range, some electric tankless water heaters are intended for 120 V power sources, although most require a 240 V power supply
- The most powerful and most costly home electric tankless water heaters cost between $800 and $900 USD. With a maximum flow rate of 6 gpm and a power output of 36 kW, they can provide enough water for whole households
- Most electric tankless systems are priced between $200 and $600 USD. Flow rates range from 2 to 6 gpm at their maximum. Power output ranges from 11 to 36 kW.
Stiebel Eltron is the manufacturer of one whole-house electric system.
- Excellent performance
- Large enough to feed two showers
- Many different sizes available
- Simple temperature control
- Water heater is quite quiet
- Many different sizes available Maximal energy efficiency is achieved by self-modulation (EF = 0.99).
Rheem RTEX-13 is intended for point of use.
- A single bathroom or weekend cabin would be ideal for this unit, which is self-modulating to save energy. It is simple to adjust the output temperature by using the dial control. Design that saves on floor space
- Warranty of five years
Want to go electric but haven’t settled on a specific model yet? We can help. Here’s where you can find the greatest electric tankless water heater! Alternatively, you can refer to this link for our size reference.
Commercial Tankless Water Heater Prices
Whether you need 240,000 BTU or 380,000 BTU or more, the cost of a business tankless water heater can go into the thousands of dollars, depending on your unique needs. As a result, it makes little sense to discuss projections at this time. We propose that you get in touch with a handful of vendors in your region and work your way up from that point.
Price Comparison by Brand
|Rinnai natural gas fired tankless heaters||$700-2,100 USD|
|Rinnai propane gas fired tankless heaters||$700-1,900 USD|
|Rheem electric||$170-500 USD|
|Rheem gas fired tankless heaters||$500-2,000 USD|
|Bosch ProTL 175N||$1,200 USD|
|Bosch Tronic 3000 T||$150 USD|
|Stiebel Eltron Tempra Plus||$500-850 USD|
|Camplux CA528||$450 USD|
|Noritz NRC66DVNG||$800-900 USD|
|Rinkmo 18KW 240V||$350 USD|
Average Tankless Water Heater Installation Cost
Electric water heaters are less difficult to install than gas water heaters. This is due to the fact that the latter requires release. In the event that you need to rewire your home or improve the electrical system in order to satisfy the amperage needs of your new electric water heater, this may be a different situation. In addition, it matters if you are only replacing an old heater, which means that most or even all of the plumbing connections and other components are already in place; if you plan to switch fuel sources; whether or not you need to make any modifications in order to meet plumbing or electrical codes; and whether or not you want to upgrade from a tank-based to an on-demand heater.
Aside from the fundamentals of labor, there are a number of other considerations:
- The costs associated with equipment, components, and accessories (mounting hardware, pipes, valves, fittings, etc.)
- And Cost of a permit – In most areas, permits are necessary for the installation of a new water heater. For further information, contact the municipality or city where you live. Warranty on labor for a specified period of time and within a specified scope
Example 1: Gas Tankless Water Heater Costs
(Tip for mobile users: Swipe to scroll.)
|Full installation (mounting, hot and cold water connections, gas line, venting)||About 8 (10) hours||Copper/flex piping, gas piping and kit, vent piping and kit, valves, fittings, mounting hardware, …||$1,000 – $1,700 USD|
|Replacement of old tankless unit, already existing gas line + venting can be used||3 – 4 hours||Gas kit, vent kit, valves, fittings, mounting hardware, …||$200 – $700 USD|
|Other Cost Factors||Pricing|
|Upgrade to larger gas pipe diameter||~$500 USD|
|New venting system||$150 – $600 USD|
|Removal and disposal of old water heater||$100 – $300 USD|
Example 2: Electric Tankless Water Heater Costs
(Swipe to scroll on a mobile device.)
|Full system installation (cold and hot water connections, electrical connection)||2 – 5 hours||Copper/flex piping, valves, fittings, mounting hardware, …||$150 – $750 USD|
|Replacement of old water heater, already existing water lines can be used||1 – 3 hours||Valves, fittings, mounting hardware, …||$150 – $250 USD|
|Other Cost Factors||Pricing|
|Outlet must be installed and wired back to electrical panel||$100 – $200 USD|
Cost to Remove or Replace a Tankless Water Heater
When it comes to tankless water heaters, removing or replacing an existing unit should not be prohibitively expensive in most situations.
That being said, just like with standard system installation, the cost of replacing a tankless hot water heater is highly dependent on the specifics of the situation.
Hiring a Pro
Although it is hard to cover every conceivable case here, calling three or four firms in your region and asking for pricing estimates is generally the best course of action to take. Pro tip: Look for contractors who are licensed and insured, who have been in business for a number of years, and who provide a warranty on their work and materials. A service provider with an A+ rating on the Better Business Bureau website and other directories is also a solid sign of their reliability.
Yearly OperatingMaintenance Costs
Obviously, depending on the sort of tankless water heater you have, gas or electricity will be the primary source of your operational costs. In addition, the more hot water you use, the higher your utility expenses will be in the future. Which is more cost-effective: natural gas or electric power? As a general rule of thumb, a gas water heater will be around one-third less expensive to operate than an electric model, however this may vary depending on your local electricity costs. Another important consideration is temperature increase, which is dictated by the temperature of the input water as well as the temperature settings at the output.
It is possible, however, to change the thermostat on your water heater to the lowest output temperature that you are comfortable with.
PropaneNatural Gas Prizes
The cost of operating a gas tankless water heater ranges from less than $200 USD per year to more than $500 USD per year depending on the model. Only a tiny role is played by the efficiency of the system. Natural gas is the least priced choice because it is powered by a utility supply line. In contrast, propane is a more efficient fuel with a significantly greater BTU, but it must be purchased separately from the rest of the fuel. Prices for natural gas and propane vary depending on where you live.
Electric tankless water heaters have an annual operating cost that can range from less than $100 USD to more than $300 USD and even more. It is possible to overlook the effectiveness of a system.
Tankless Water Heater Maintenance Cost
When it comes to maintaining a tankless unit, all that is required is periodic descaling (also known as deliming) and flushing of the heating components to keep it operating at optimal performance. This is normally required once every 12 months, depending on the hardness of your water and how much water you consume. As a point of reference, if you have a water softener placed upstream of your instant hot water heater, you won’t have to bother about descaling. Furthermore, the methods needed are not extremely hard, so you may complete this task on your own to save a few dollars.
It takes 1 to 2 hours for a plumber to do routine maintenance.
Are Tankless Water Heaters Worth the Investment?
As previously stated in the introduction, a tankless water heater is a more expensive upfront expenditure when compared to a typical water heater. However, it reduces recurring expenses by a significant margin since it has virtually no standby losses – in contrast to storage tank systems, which heat water around the clock. According to the United States Department of Energy, on-demand water heaters can be up to 30 percent more energy efficient than traditional water heaters, depending on how much hot water you consume on a daily basis.
And yet, the issue remains: Are tankless water heaters a good investment? Are they worth the money?
Average Cost Savings
“Water heating is the second most energy-intensive end-use in the home (.).” It accounts for 16.8 percent of home energy usage and can cost a household anywhere from $200 to $600 per year,” according to the Energy Information Administration. (Image courtesy of the Internet Archive) When moving from a gas tank-based to a gas tankless water heater, a typical family of four consuming 64 gallons of hot water per day may save around $115 USD each year. In the case of high hot water consumption (about 85 gallons per day), energy savings of 8 – 14 percent are achievable.
Overall, tankless water heaters have a relatively lengthy payback period of around 20 years, which is approximately the same amount of time that the average system lasts.
Tankless Water Heaters – Pros and Cons
What are the advantages and disadvantages of putting up a tankless water heater in your home?
The following are some of the advantages of tankless water heaters:
- When compared to standard water heaters, they are more energy efficient than those. This is due to the fact that they do not hold any hot water, therefore eliminating standby losses. The heating takes place instantly, allowing you to save up to 30% on energy costs. Heating water on demand also ensures that you will never run out of hot water. Tankless water heaters provide an infinite supply of hot water since they are tiny and therefore easier to install in confined spaces. Having a new water heater will also free up room in your basement or wherever you decide to install it. They are simple to prepare for the next winter season. As previously said, a tankless water heater may last up to 20 years, but a standard water heater with a tank can only last 15 years.
The following are some of the disadvantages of tankless water heaters:
- Both the purchase and the installation are more expensive in the beginning. As a result, the payback period is lengthy
- Tankless water heaters are susceptible to sluggish flow
- Electric tankless systems are restricted in terms of the amount of hot water they can produce at any given moment. However, even the largest units designed for residential usage are unable to heat more than 6 gallons per minute under optimum conditions.
Where to Buy a Tankless Hot Water Heater
Where is the most convenient location to purchase a new tankless water heater? Of course, we always prefer to shop online, for example at Amazon or Home Depot, in order to get the greatest deal possible. However, most manufacturers also sell their hot water heaters through local dealers and/or licensed contractors, which is a common practice in the industry. Home improvement stores and big-box retailers are another feasible choice. If you have any queries concerning the price of a tankless water heater, please don’t hesitate to ask them in the comments section below!
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