Where To Buy Tankless Water Heater

Tankless Water Heater Buying Guide

Donna Currie has lived and worked in sections of the nation where the water quality was ranked among the best in the country.and she has lived and worked in places where the water quality was rated among the worst in the country. In her testing and research, she’s come across a number of different models over the years. Commerce Editors on the Assocation Richard Andrew of NSF International’s Global Water program provided information for this essay, which was researched and written by Taylor Rock and Fran Sales.

Tankless Water Heaters

A tankless water heater, also known as an on-demand water heater, warms water only when it is required. It is possible to put these heaters in a closet, on an outside wall, or in any other suitable location within your home. They may be used to heat your entire home or just a single point of usage such as a shower, sink, or appliance, among other things. A tankless water heater, whether natural gas, propane, or electric, provides you with an infinite supply of hot water while saving you money on energy expenditures by eliminating the need to store, heat, and reheat the same tank of water.

How Does a Tankless Water Heater Work?

  • When you turn on a hot water faucet or turn on the dishwasher, the tankless water heater identifies the requirement for hot water and begins the heating process immediately. In order to provide water at the correct temperature, the temperature of the entering water is utilized to determine the amount of heat that must be produced by the burners. When there is no longer a demand for hot water, the unit shuts down and stops consuming energy, waiting until a new demand for hot water arises. The ultimate result is hot water that is not restricted to the amount of hot water stored in your tank.

Benefits of a Tankless Water Heater

You have the ability to convert any water source into hot water on demand. There is no limit to the quantity of heat that may be stored in a storage tank heater. Whether you’re cleaning the dishes, washing your clothes, taking a hot bath, or even doing them all at the same time, tankless water heater technology will provide you with the hot water your lifestyle requires immediately and efficiently.

Lower Energy Bills

When you use a tankless water heater, you may save up to 40 percent on your energy bills! Heat-only units are meant to be extremely energy efficient, heating water only when it is required.

Longevity

Tankless water heaters have a lifespan of up to 20 years, which is often twice as long as a traditional tank-style device.

Space Savings

Traditional water heaters may consume up to 16 square feet of important floor space, which is a significant amount of room. Many tankless water heaters are roughly the size of a carry-on suitcase and may be mounted on nearly any wall inside or outside your home, depending on your preferences.

Clean, Fresh Water

Traditionally installed water heaters are susceptible to rust and scale buildup within the tank where the hot water used for bathing and drinking is kept. Water heaters that do not require a tank provide you with continuous access to fresh, clean water that is heated on demand as it goes through the unit.

Choosing the Right Tankless Water Heater

It is critical to determine the size of the tankless water heater you will require. A heater that is too tiny will not be able to appropriately fulfill the hot-water demands of your house, while a heater that is too huge will be an unnecessary expense. How much water will you use at peak demand – for example, when the dishwasher is running, you are having a shower, and a load of laundry is being washed? What proportion of the incoming water will need to be heated in order to meet the demand? Before purchasing a tankless water heater, you should think about two things: the flow rate, which is the amount of water that flows through a fixture or appliance in gallons per minute (GPM), and the temperature rise, which is the difference between the groundwater temperature and the desired hot-water output temperature.

For example, you may be using the kitchen sink, washing laundry, and bathing all at the same time.

To find out the flow rate of a fixture or appliance (shower head, dishwasher, washing machine, and so on), consult the manufacturer’s handbook or look for the GPM stamped directly on the fixture or appliance.

If you have a bucket and a timer, you can simply compute the GPM of an appliance or fixture using the following formula: The amount of seconds it takes to fill a 1-gallon container with water from the appliance or fixture divided by 60.

Average GPM Usage for Common Appliances and Fixtures

It is critical to determine the size of the tankless water heater you will require. A water heater that is too tiny will not be able to appropriately fulfill your home’s hot-water demands, while a water heater that is too large will be an unnecessary expense for your household. Do you know how much water you’ll need at peak demand – when the dishwasher is running, you’re having a shower, and a load of laundry is in the washing machine? When it comes to meeting the demand, how much incoming water will be required to do so?

For example, you may be using the kitchen sink while also doing laundry and bathing.

Flow rates for fixtures and appliances (shower heads, dishwashers, washing machines) can be found in the manufacturer’s handbook or stamped directly on the fixture or appliance (shower head, dishwasher, washing machine, etc.).

  • Northern Zone temperatures range from 37 degrees to 51 degrees
  • Central Zone temperatures range from 52 degrees to 61 degrees
  • And Southern Zone temperatures range from 62 degrees to 77 degrees.

The average interior water temperature in a residence is between 110 and 120 degrees Fahrenheit. For the temperature rise, subtract the entering water temperature from the required interior water temperature to find the temperature increase. According to this formula, if your shower water temperature is 57 degrees Fahrenheit and your ideal shower temperature is 120 degrees Fahrenheit, the temperature rise is 63 degrees. Additionally, while purchasing a tankless water heater, in addition to being aware of the flow rate and temperature rise, you should consult size tables to assist you in selecting the most appropriate heater for your requirements.

Point of Use Water Heaters

An region of your home may require an additional burst of hot water from time to time. When this occurs, the usage of a small point of use (POU) water heater might be beneficial. In the case of a hot tub that operates on electric heat, a POU heater can be added nearby to provide additional heat. Installed close to a room or appliance that requires more hot water, these compact tankless heaters provide instant hot water. Moreover, these appliances are useful for house renovations and extensions since they can easily be put in a cabinet or other compact location.

Hybrid Water Heaters

Every now and again, a certain region of your residence need an extra boost of hot water supply. An efficient compact point-of-use (POU) water heater might be of great use in this situation. In the case of a hot tub that operates on electric heat, a POU heater can be added nearby to provide additional heating.

Located near a room or appliance that need more hot water, these compact, tankless heaters provide it. As a bonus, these appliances are useful for adding on to or expanding an existing home because they can easily be fitted into a cabinet or other tiny place.

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.

  1. 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”).

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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:

Higher Efficiency

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.

Wi-Fi Compatible

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
  1. 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)
  2. 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:

Gas Line

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.

Venting

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.

Water Hardness

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.
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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.

Tankless Water Heaters (R)

It will never be necessary for you to pick between having a hot shower and doing laundry or running the dishwasher again. There is always hot water available.

Better Value Than a Tank

Because they only heat water when it is needed, Rinnai tankless water heaters may last up to twice as long as traditional tank water heaters, and they come with a two-year warranty. In addition, consumer financing and discounts are frequently offered. Determine whether you are qualified for a refund.

Save Valuable Space

Small yet formidable, the suitcase-sized wall units are designed to fit into small, discrete places, allowing you to make better use of your available living space. There will be no more holding big amounts of water that might potentially spill into your flooring. Furthermore, rather of having to replace the complete equipment, components are frequently removable.

Technology to Improve Your Lifestyle

You may establish hot water schedules or have it on demand with Rinnai recirculation technology in certain models that are Wi-Fi capable. This allows you to save time by not waiting for hot water and reduce water waste by having hot water available in seconds rather than minutes. A smart home system may be incorporated into your existing system for more control and convenience.

Reliability You Can Count On

Before delivery, each Rinnai tankless water heater is subjected to a rigorous quality control process.

Unlike many of our rivals, Rinnai manufactures the great majority of our important components in-house, allowing us to maintain constant quality control. For this reason, Rinnai is preferred by more consumers and companies than any other tankless brand.

The Rinnai PRO Network

Given that expert installation is highly recommended, Rinnai has built up a large network of skilled and experienced professional installers to ensure that you receive the best possible performance from your product. A Rinnai PRO will assist you in selecting the most appropriate model for your needs, will explain financing alternatives, and will complete a high-quality installation.

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Arvada Tankless Water Heaters

If you are a homeowner in Arvada with a large family, you will most likely want an instant hot water heater so that everyone can take a warm shower. When you’re cleaning the dishes and you run out of hot water, or if you have to get out of the shower in the middle of it because the water is freezing, it can be frustrating. When you go from a gas water tank to one of our electric Arvadatankless water heaters, you’ll never have to worry about running out of warm water again. In addition to being more space-efficient, the tankless alternative provides hot water on demand and saves money on energy costs over traditional tank-style water heaters.

Call Our Professionals For Our Arvada Tankless Water Heater Installation Service

Due to the fact that a tankless water heater heats water practically instantaneously, you won’t have to waste time running the water and waiting for it to heat. In addition to being simple to install, ourArvada tankless water heatersare sometimes more cheap than huge water tanks. You won’t have to be concerned about individuals using separate faucets throughout the house at the same time since both faucets will have enough hot water to meet their needs simultaneously. Interested in acquiring a new hot water tank?

Don’t Wait To Get An Instant Hot Water Heater

You should only entrust this sort of job to true specialists in order to ensure the safety and effective installation of the equipment. If you believe that an instant hot water heater can help your family while also saving you money, don’t put it off any longer in getting an estimate. Brothers Arvada tankless water heater installation pros can simply calculate the amount of unit you require by looking at your water use and the size of your property. Tankless water heater installation in Arvada and Denver has been a part of our company since the tankless water heater first became available to the general public, making us some of the most knowledgeable contractors in the industry.

An On-Demand Water Heater Fits Anywhere In Your Home

It’s possible that the on-demand water heater will be able to fit in a cabinet beneath your sink. You may save money on your energy bills by installing tankless water heaters in Arvada. In addition to having infinite hot water, you can qualify for a tax benefit for making the investment in an energy efficient update. If you have a constant problem with hot water in your house, contact Brothers Plumbing, Heater, and Electric for information and alternatives on Arvada tankless water heaters. We can also provide you with complete warranty information.

So get in touch with us immediately to learn more about our Arvada tankless water heaters.

We Proudly Choose Navien Tankless Water Heaters for Our Replacements

Tankless water heaters from Navien are among the finest products available on the market.

They are very efficient, they have a long life span, and they require little to no maintenance to function properly. In addition to providing excellent items, Navien also provides excellent rebates for the use of their products. To find out more about their incentives, visit their website right now!

Tankless Water Heaters

In recent years, tankless water heaters have swiftly gained popularity among Cincinnati residents looking to minimize their power bills and reduce energy waste around the home. Tankless units, as opposed to typical tank gas or tank electric water heaters, heat water only when it is needed, rather than preheating hot water for storage until it is needed. As opposed to a normal model, there is no continual consumption of energy, which lowers the cost of operation as well as the amount of energy consumed.

With water heating accounting for around 14 percent of the average Ohio household’s energy expenditures, upgrading to a more energy-efficient water heater will result in significant savings on your energy costs in the long run.

Contact the plumbers at ThomasGalbraith Heating, Cooling, and Plumbing today to learn more about the advantages and disadvantages of tank and tankless water heating, as well as to discuss installation alternatives with a professional.

Benefits of Tankless Water Heaters

Check out these benefits if you haven’t already decided on a tankless water heater for your Cincinnati home and see if it is the best option for you!

  • A tankless water heater may be the safest alternative since it only operates when there is a need for hot water, rather than all of the time. Furthermore, several versions are equipped with safety measures that enhance the overall safety of the device. Water heater monitoring systems provide information on the operation of the water heater, the flow rate, and the pressure of the water. The system is shut down if a failure or potentially harmful situations are identified by the safety controls. When you switch to a tankless unit, you can eliminate the energy loss associated with storing hot water and keeping it heated around the clock. This change has the potential to save you as much as 35% on your energy bills. When compared to a standard gas water heater or an electric water heater, tankless systems take up significantly less space. Consequently, they may be deployed in small locations, providing greater flexibility than traditional water heaters. When compared to a tank gas water heater, a tankless gas water heater may save as much as 40% on energy costs. These water heaters are up to 55 percent more efficient than a tank-style electric water heater. Providing competent maintenance is performed on a tank water heater, it should last twice as long as a tank water heater, or 20 to 10 years in comparison. With a tankless water heater that is scaled to fit your needs, you will never run out of hot water. There will be no waiting for the tank to be refilled before you can shower.
See also:  How Do You Turn Off A Gas Hot Water Heater?

A new tankless water heater is only as good as the plumber who installs it, so choose wisely when hiring one. Count on ThomasGalbraith for the dependable service you’ll need to get your new water heater up and running, and to keep it running as efficiently as possible for years to come.

Selecting a Tankless Water Heater for Your Cincinnati Area Home

When it comes to energy expenditures, choosing the proper water heater for your home may make a significant impact, since this domestic operation accounts for 14 percent of total energy spending in the United States. As a result, here are some things to consider when buying a tankless water heater for your house in order to boost efficiency and save money over the course of an entire year.

Power Source

Tankless gas water heaters and tankless electric water heaters are also available, just as they are with traditional tank water heaters. Gas and liquid propane are the most common fuel sources for tankless units since they provide greater power. However, if your property does not have access to a natural gas supply, the cost of installing gas lines may make the unit out of reach of your budget. In the event that you choose for an electric tankless unit, you may need to improve your electric system because these units may impose a significant strain on the system’s capacity.

Flow Rates

The flow rate of a tankless water heater is used to determine the appropriate size of the unit for a home. First, you must establish the peak hot water consumption of the household in order to determine how much hot water a new tankless water heater will require in order to provide adequate hot water for all purposes throughout the home.

While it is preferable to find up the real water consumption rate for your home’s fixtures and appliances in order to estimate the required flow rate, these averages are useful if you do not know the rate at which your fixtures and appliances use water.

  • Low-flow faucets use 0.75 gallons to 2.5 gallons per minute of water
  • Low-flow shower heads use 1.2 gallons to 2 gallons per minute of water. Older conventional shower heads: 2.5 to 3.5 litres per minute (depending on the model)
  • Approximately 1 gallon to 2 gallons per minute for clothes washers and dishwashers

Cost

You might save money by purchasing a tankless water heater, but you may wind up spending more money in the long run due to greater energy usage. Always take into account the operational expenses of a new tankless system in addition to the purchase price — paying more money up front can result in significant savings down the road.

Install and Maintenance Care

Tankless water heaters are highly specialized equipment that must be installed by a professional. You require a plumber who is familiar with local code requirements, safe installation for various power sources, and how to safeguard the system from any safety hazards. Choose a ThomasGalbraith plumber to complete the installation of a new tankless hot water heater – this is not a task that should be attempted on your own.

Repairs for Tankless Water Heaters

Despite the fact that tankless water heaters require little maintenance, issues can arise with any household equipment at any point in time. A tankless water heater is susceptible to faults such as the following:

  • Failure to ignite
  • Failure to ignite
  • System overload
  • Air supply blockage
  • Exhaust blockage
  • Cold water sandwich
  • Mineral deposits

If the functionality of your tankless water heater begins to deteriorate and it is no longer able to provide enough hot water for your home, it is time to contact ThomasGalbraith for plumbing assistance. Our plumbers are accessible 24 hours a day, seven days a week to assist you with any plumbing emergencies.

Maintenance for Tankless Water Heater Units

Tankless water heaters require extremely little maintenance, however they are not fully maintenance-free. Preventive maintenance is required to assist ensure that the system has a long service life, which may be as long as 20 years if properly cared for and maintained! Tankless water heaters can have issues when used in houses with hard water, as previously stated. Minerals transported by the water supply can deposit on the heat exchanger of the unit, resulting in blockages that restrict water flow and cause the device to malfunction.

If this problem is not addressed, it will reduce the system’s service life by many years.

Descaling is required for tankless water heaters in order to eliminate minerals that have accumulated in the system.

In order to prevent mineral accumulation in the system, when a ThomasGalbraith plumber performs maintenance on a tankless unit, the system is descaled.

Water Heater Buying Guide

In a recent test, Consumer Reports evaluated six electric and gas whole-house tankless water heaters from manufactures including Bosch, Noritz, Rheem, Rinnai, Tempra, and Trutankless. A tanked water heater from Rheem, one that is gas and one that is electric, as well as an electric heat pump water heater from Rheem, which is a variant on a tanked water heater, were all used to compare the outcomes. Based on the results of an industry-standard “heavy usage” test, we compared the performance of natural gas and electric tankless water heaters to that of their conventional tank equivalents.

The daily equivalent of taking many showers, running the dishwasher, washing one load of clothes, and repeatedly turning the tap on and off.

The intended outlet temperature was 120° F, and the test employed these temperatures.

As a result, we do not have model-level ratings for refrigerators, as we do for other major appliances.

Tankless units that were installed in lieu of an existing storage tank had a longer payback period than those installed during new construction. For further information, see our gas and electric water heater ratings.

How to buy a tankless water heater

In these energy-conscious times, reducing the use of air conditioning and conserving water are standard approaches to conserve the environment while also saving money on your utility bills. However, there are several additional methods of conserving energy in the house. Consider the tankless water heater as an example. In contrast to typical water heaters, tankless water heaters (also known as instantaneous water heaters) heat water as it is required, rather than continually heating a tank full of water as is the case with regular water heaters.

Water heaters without a storage tank can be up to 34 percent more energy efficient than water heaters with a storage tank, according to the United States Department of Energy.

Some factors to think about while purchasing a tankless water heater for the house are as follows:

Continuous hot water, lower water pressure

Heaters that are powered by electricity or natural gas heat the water as it flows toward you when you turn on the hot water faucet. There is a cost associated with this since you have an infinite supply of hot water for your shower. As a result of the heating elements taking a specific length of time to heat a particular volume of water, the water pressure will be significantly lower than when using a conventional tank water heater. In general, they provide a flow rate of between 2 to 5 gallons (7.6 to 18.9 liters) of hot water per minute, while certain models may produce up to 11 gallons (42 liters) per minute in some cases.

Most shower heads have a maximum flow rate of 2.5 gallons per minute.

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Considerations for big households

While your tankless water heater can give unlimited hot water for a single faucet, it is unable to simultaneously deliver hot water to the washing, sinks, and other showers at the same time. You’ll need two or more tankless water heaters to keep up with the demand if you have many faucets that use hot water at the same time on a regular basis. In fact, according to the United States Department of Energy, homeowners that install a water heater at each hot water outlet can save more energy if your family consumes more than around 86 gallons of hot water per day on average.

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Gas vs. electric

You can choose between a tankless unit that is heated by gas or one that is heated by electricity. Each has certain advantages over the other. Typical tankless water heaters, for example, require significantly bigger gas lines than traditional water heaters. Installation will be more expensive as a result of this than it would be with electricity. Gas tankless water heaters, on the other hand, may heat water more quickly, allowing them to deliver greater water pressure. The pilot light, on the other hand, remains illuminated at all times, even when there is no need for hot water.

If you absolutely want a gas unit, but you also want to save as much money as possible on waste, seek for units that have intermittent ignition (IID). When you need hot water, you may effortlessly turn on and off the pilot light by using this method.

Size

You’ll need to conduct some research in order to determine the size of tankless water heater you’ll need for your home. To begin, total up the flow rate. This is the amount of hot water you will use each minute in gallons per minute at any given moment. This includes any washers, dishwashers, showers, tubs, and sinks that are in use at the same time as the other appliances listed above. It is possible to estimate the flow rate by conducting a Google search for your appliances and shower heads.

Make a note of that number before you go shopping.

One other figure that you’ll need to know is the temperature increase.

To figure this one out, I’m not going to make you go take the temperature of your cold tap water with a thermometer.

If the unit is powered by gas, this temperature rise is normally attainable at a flow rate of 5 gallons per minute, and at a flow rate of 2 gallons per minute for electric units.

How to turn on a gas water heater is demonstrated here.

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