What Is An Electric Water Heater

Pros and Cons of Electric Water Heaters

The reading time is 5 minutes. Heating water in your home consumes a significant amount of power. In reality, heating water accounts for around 12 percent of the total energy consumed by an ordinary home. The amount of energy your own water heater uses is determined not only by the amount of hot water you use, but also by the sort of water heater you place on your own property. If you’re considering replacing your water heater in your house, it’s crucial to examine several different alternatives before making a final purchase decision.

Electric water heaters: what are the pros and cons?

Electric water heaters are one of the most common choices for household water heating, yet it can be difficult to understand the advantages and disadvantages of installing an electric water heater as opposed to a gas water heater in some cases. Some of the most significant advantages and disadvantages of utilizing an electric water heating setup are as follows:

Pros and cons of electric water heaters

Pros Cons
Low upfront costs Relatively slow heating time
Efficient use of energy Susceptible to power outages
Safe to operate High operating costs

Pros of electric water heaters

A number of factors influence whether or not a home should install electric water heaters instead of gas water heaters. The following are some of the most significant benefits that electric water heaters have over their competitors:

Lower initial costs

When it comes to upfront cost, an electric water heater is likely to be the most economical alternative among the several water heater options available on the market today. What’s more, the cost will be heavily influenced by the size and kind of water heater installed, independent of the fuel used to operate it. For example, standard tank water heaters are less expensive than tankless, on-demand water systems, which are often more expensive up front than tank water heaters. As a general rule, the price differential between different types of hot water heaters is mostly due to the cost of installation.

Electric water heaters, on the other hand, do not necessitate the installation of any new in-home equipment, making the installation procedure both easier and quicker.


Considering the energy factors of various water heaters is the most effective technique of comparing the efficiency of different water heaters (EF). This statistic assesses the efficiency with which a water heater produces hot water by evaluating how much fuel or electricity is necessary to heat your water to a desired temperature. The efficiency of each type of water heater may be easily compared using the EF numbers, which are relatively simple to calculate: greater efficiency heaters will have higher EF values.

Electric water heaters can have EF numbers more than 0.9, but conventional gas water heaters normally have EF numbers ranging from 0.5 to 0.7.

When it comes to natural gas water heaters, the majority of the energy loss happens during the venting procedure, which is completely absent in the case of an electric water heater.


Water heaters, whether electric or gas, are both reliable and safe options for heating your water. In addition, water heaters, like any other equipment that runs on gasoline, are prone to gas leaks whether they are powered by propane or natural gas. By performing regular maintenance and inspections on your gas water heater, you may reduce the likelihood of these dangers occurring. While electrical appliances have their own set of safety problems, the likelihood of witnessing a gas leak with a water heater is higher than the likelihood of observing any type of electrical safety issue with the same equipment.


Almost every residence is connected to the electric grid, and as a result, they all have access to a reliable source of electricity at all times (save for when the power grid is down). This implies that an electric water heater may be used efficiently in almost any home. A natural gas water heater, on the other hand, requires that your home be connected to a natural gas line or has access to a propane supply source before installation can be completed. If not, the expense of completing these improvements in order to install a gas water heater might be too expensive.

Cons of electric water heaters

Electric water heaters are not always the most efficient option for every household. Some of the disadvantages of utilizing an electric water heater are as follows:

Heating time and recovery rates

Does it seem like you spend a significant amount of time waiting for your shower water to heat up? With electric water heaters, this procedure will take even longer to complete than it would with a gas-powered water heater. This is due to the fact that the combustion process of gasoline creates heat more quickly (often even twice as quickly) as electric heating. Gas water heaters have a better recovery rate than electric water heaters (i.e. the amount of water the appliance can heat to a set temperature in a given time frame).

Households with only a handful of persons, on the other hand, will not require the same recovery rate that gas water heaters can provide.

Power outages

If the power system is disrupted by a storm or other incident, you will be unable to use your electric water heater because you will be without hot water. Gas water heaters, on the other hand, may continue to run even if the electricity is gone. This is an essential consideration if cost is a main factor in your selection. It is crucial to establish that your gas water heater does not require electricity to function before proceeding. It is possible that some contemporary gas water heaters will employ an electrical ignition rather than a pilot light, even if electricity is not the major source of fuel in the unit.

Operating costs

Despite the fact that electric water heaters are more energy efficient than gas water heaters, you will most likely spend less money overall if you heat your water supply with gas. Due to the high expense of the fuel source, this is the case. Natural gas is now one of the most affordable sources of energy, and in most circumstances, the cost of electricity will be significantly greater than that of natural gas. Because the rates of natural gas and electricity vary depending on where you live, it’s a good idea to evaluate the expenses of each before making a final decision on how you want to heat your drinking water.

Some utilities may provide financial incentives for the installation of electric water heaters, which can help to make this a more cost-competitive alternative.

Powering electric water heaters with solar panels

It is always possible to combine an electric water heater with a solar energy system if the only thing that concerns you about acquiring an electric water heater is the operating costs. By installing solar panels on your roof, you will be able to operate your water heater entirely on solar energy rather than electricity purchased from your utility provider. As an added benefit, solar panel systems may help you save money on more than just your water heating costs; they can also help you save money on your whole power bill (by reducing or even eliminating it entirely).

You may obtain up to seven customized solar quotations that are tailored to your specific home for free.

Heat Pump Water Heaters

A heat pump water heater is one that uses electricity to transport heat from one location to another rather than generating heat directly from the source. So they may save two to three times the amount of energy used by ordinary electric resistance water heaters, on average. Heat pumps operate in the same way as a refrigerator does in reverse to transport heat. Instead of drawing heat from within a box and distributing it across the room, a stand-alone air-source heat pumpwater heater draws heat from the surrounding air and transfers it to a storage tank where it may be used to heat water at a greater temperature.

  1. It is also possible to convert a heat pump to function in conjunction with an existing conventional water heater.
  2. The air that passes over the evaporator can be vented into the room or outside the building.
  3. Installing them in an area with excessive heat, such as a furnace room, will improve their efficiency.
  4. In the winter, these combination systems draw their heat from the outside air, while in the summer, they draw their heat from the inside air.
  5. Homeowners generally use geothermal heat pumps – which extract heat from the ground in the winter and from the interior air in the summer – to heat and cool their houses.
  6. You may use adesuperheater in conjunction with a geothermal heat pump system to heat your water.
  7. Afterwards, the hot water travels through a conduit to the storage water heater tank located within the home.
  8. Summertime: The desuperheater makes use of the extra heat that would otherwise be released to the ground by the air conditioner.
  9. During the autumn, winter, and spring, when the desuperheater isn’t producing as much surplus heat, you’ll have to rely more on your storage or demand water heater to meet your water heating needs.

In addition, some manufacturers provide triple-function geothermal heat pump systems that may be used for heating, cooling, and even hot water production. They employ a separate heat exchanger to satisfy all of the hot water requirements of a family.

Tankless or Demand-Type Water Heaters

Known as demand-type water heaters or instantaneous water heaters, tankless water heaters supply hot water only when it is required. They do not generate the standby energy losses typical with storage water heaters, which can result in significant savings in energy costs. You’ll learn the fundamentals of how they function, if a tankless water heater is a good choice for your house, and what factors to consider when choosing the best model for your needs. Take a look at theEnergy Saver 101: Water Heating infographic to determine whether a tankless water heater is the best option for you, and our AskEnergySaver conversation on water heating for additional information on energy-efficient water heating.

How They Work

Tankless water heaters provide fast heating of water without the need for a storage tank. When a hot water faucet is switched on, cold water is sent through a heat exchanger in the unit, where it is heated by either a natural gas burner or an electric element, depending on the device. Consequently, tankless water heaters are able to provide a continuous supply of hot water. The need to wait for a storage tank to fill up with adequate hot water is no longer an issue. The output of a tankless water heater, on the other hand, is limited in terms of flow rate.

  1. Tankless water heaters that run on natural gas have higher flow rates than those that run on electricity.
  2. For example, having a shower while also running the dishwasher at the same time might cause a tankless water heater to reach its maximum capacity quickly.
  3. You may also install separate tankless water heaters for equipment in your house that need a lot of hot water, such as a clothes washer or dishwater.
  4. Demand water heaters are also used in the following other situations:
  • Bathrooms or hot tubs in a remote location
  • Increases the efficiency of household appliances such as dishwashers and laundry washers. Thermoelectric booster for a solar water heating system

Advantages and Disadvantages

Demand water heaters can be 24–34 percent more energy efficient than typical storage tank water heaters in residences that utilize 41 gallons or less of hot water per day on average. For houses that utilize a lot of hot water – around 86 gallons per day – they can be 8 percent to 14 percent more energy efficient than standard models. If you install a demand water heater at each hot water outlet, you may be able to achieve even larger energy savings in some circumstances. A tankless water heater will cost more up front than a normal storage water heater, but they will often live longer and have lower operating and energy expenses, which may more than compensate for their higher purchase price in the long run.

  1. They also feature readily changeable parts, which might potentially increase their lifespan by many years.
  2. With tankless water heaters, you won’t have to worry about the standby heat losses that come with traditional storage water heaters.
  3. When compared to a storage water heater, the removal of standby energy losses might sometimes outweigh the savings from using a tankless water heater.
  4. A tankless water heater’s pilot light has a cost associated with it that differs from one type to the next.

Instead of a standing pilot light, look for versions that contain an intermittent ignition device (IID). This mechanism is similar to the spark ignition system used on certain natural gas furnaces, as well as kitchen ranges and ovens, among other things.

Selecting a Demand Water Heater

Before purchasing a demand water heater, you should take the following factors into consideration:

  • Consider the following factors as well when purchasing a demand water heater:
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Installation and Maintenance

It is possible to maximize the energy efficiency of your demand water heater with proper installation and maintenance. A variety of elements influence the success of an installation. These considerations include the type of fuel used, the environment, the needs of local construction codes, and safety concerns, particularly with regard to the combustion of gas-fired water heaters. As a result, it is recommended that you use a licensed plumbing and heating professional to install your demand water heater.

  • Request written cost estimates, as well as contact information for references. Check with your local Better Business Bureau to see whether the firm is legitimate. Check to see if the firm will seek a local permit if one is required and if they are familiar with local building rules.

If you’re determined to install your water heater yourself, first speak with the manufacturer about the best way to proceed. The relevant installation and instruction manuals are normally available from the manufacturer. Contact your municipality for information on acquiring a permit (if one is required) and on water heater installation codes in your area. Periodic water heater maintenance may considerably increase the life of your water heater while also reducing the amount of energy it consumes.

Improving Energy Efficiency

Consider implementing some further energy-saving measures once your demand water heater has been properly built and maintained to help reduce your water heating rates. Some energy-saving gadgets and systems are more cost-effective to install in conjunction with a water heater than they are separately.

Electric Water Heater

In contrast to converting from a fossil-fueled automobile to a hybrid model in order to save on gasoline expenditures, switching from a gas water heater to an electric water heater will not save you money. Natural gas, in contrast to gasoline, burns cleaner (and is less expensive!) than electricity. In certain areas, electric water heaters are the rule rather than the exception. Despite the fact that electric heaters are far more energy efficient than gas heaters, they will cost you almost twice as much in energy bills as a gas heater.

Despite the fact that electric water heaters are up to 50% more efficient than their gas-powered equivalents, electric water heating expenses can be as much as twice as high.

Electric water heaters are classified into three categories: A standard tank is normally rated at around.90 gallons of capacity.

With Visualize two components getting extremely heated and then transferring the heat to your water in this type of tank: High-Efficiency Tank– These tanks are similar to ordinary tanks, but they are more insulated, and their energy efficiency ratings are typically as high as.94-.95, resulting in yearly power savings of around $10-$15.

  1. They are kept in an unconditioned place such as a garage, attic, or basement.
  2. To learn more about heat pump water heaters, click here.
  3. However, if you can plan ahead for these scenarios, you will be able to save a large amount of money on your water heating expenses as well as significantly cut your energy use.
  4. To find out the actual cost of a permit in your location, give us a call.

Customers who transition from electric to gas water heaters can take advantage of rebates and incentives offered by some utility providers to encourage the conversion.

Electric vs. Gas Water Heaters: Major Differences, Pros And Cons

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.

Compare Quotes From Top-rated Water Heater Installers

Estimates are provided without obligation. Is it past time to replace your water heater? When you turn on the hot water tap and only cold water comes out, or when the unit is unable to keep up with growing demand for hot water, you’ll know something is wrong. Despite the fact that it is obvious that you require a new water heater, which fuel source should you choose? Should you get an electric or a gas-powered model? It’s more important to locate the correct water heater for your needs than to choose between electric and gas because they both have their advantages and disadvantages.

What Electric or Gas Water Heaters Are

It is a tank that is heated by high-voltage electric heating rods that run vertically through the tank, which is known as an electric water heater. The water is heated from the center of the tank outward, starting at the center of the tank.

Gas Water Heater

In a gas water heater, water is heated by a gas-fired burner positioned at the bottom of the tank, which circulates the water. Hot water begins at the bottom of the tank and climbs to the top, where it is sucked out by a discharge tube at the top.

Electric Water Heater Pros and Cons

  • Operation is clean and safe, and the water is heated effectively. Purchase price is reduced. a large selection of sizes
  • There is no need to relight it because there is no pilot light. Because all residences are wired for electricity, it is simpler to connect


  • Higher running expenses
  • Water heats up more slowly than with gas versions
  • Recovery periods that are longer
  • During a power outage, the system will not work.

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Water heater Rheem 18 kW tankless electric water heater Testimonials from customers Exceptionally well-written Water heater Rheem 18 kW tankless electric water heater Tankless Electric Water Heater RTEX-13 by Rheem has a capacity of 13kW. Testimonials from customers Exceptionally well-written Tankless Electric Water Heater RTEX-13 by Rheem has a capacity of 13kW. Testimonials from customers Excellent We’ve researched the finest models from the best companies right here, and we’ve ranked the top five that best fit the demands of the majority of households.

Gas Water Heater Pros and Cons

  • Water is heated fast
  • Lower running expenses as compared to electric vehicles
  • Efficacious in terms of energy consumption When there is a power breakdown, it continues to operate.


  • It is possible that not all residences have gas
  • Thus, it may be necessary to install gas. Ones that are less safe than electric models
  • Operation that is dirtier
  • A more limited range of sizes
  • Electricity has a shorter lifetime than gas. Water heating is less efficient than electric heating. It may be necessary to relight the room on occasion.

You May Also Be Interested In Gas Water Heaters Available On Home Depot

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Permits and inspections are often required for both electric and natural gas water heaters. Electric water heaters are easier to install than gas water heaters since electricity is available in all households, whereas gas is not always available.

Electric Water Heater

All of the houses are wired for electricity.

In other cases, the 240-volt connection to the water heater location is already in place in the home itself. If this is the case, a new circuit can be created and connected to the home’s electric service panel.

Gas Water Heater

Not all residences have access to natural gas. If the house does not have gas, it may be necessary to bring in municipal gas from the street to the house, which might be expensive. If the home is equipped with natural gas, a plumber will be required to install the gas lines.

Size of Water Heater

Electric water heaters are available in a wider range of sizes than gas water heaters, particularly when it comes to micro-sized point-of-origin (immediate demand) water heaters, which are becoming increasingly popular.

Electric Water Heater

Electric point-of-use water warmers are available in capacities ranging from two to twenty gallons. Conventional electric tank water heaters have a capacity of 40 gallons and can hold up to 120 gallons. The majority of tanks hold 30, 40, or 50 gallons.

Gas Water Heater

Because there are no point-of-use gas water heaters available, all of the water heaters are tank versions. Gas water heaters are available in capacities ranging from 20 to 100 gallons. The majority of tanks hold 40, 50, 80, or 100 gallons.

Cost to Purchase

Water heaters that run on electricity are less expensive to acquire than water heaters that run on gas. It is always possible to purchase pricey water heaters in either electric or gas versions, but when looking for a less expensive heater, you will almost always find one that is electric.

Electric Water Heater

The majority of electric water heaters range in price from $500 to $800. The vast majority of these are in the $500 to $600 bracket.

Gas Water Heater

The majority of gas water heaters are priced between $600 and $800.


Electric water heaters are safer than gas water heaters since there is no gas line, burner, or pilot light to trigger a gas explosion or explosion.

Electric Water Heater

Installation of electric water heaters necessitates the use of a 240-volt electrical connection. Electric water heaters do not require relighting at any time.

Gas Water Heater

Gas water heaters must be connected to a gas line and have an open flame (located at the bottom of the heater) in order to warm the water. A lighter or a piezoelectric built-in lighter may be required from time to time by the user to relight the gas pilot light on occasion.

Heating Rate

Gas water heaters heat water more quickly than electric water heaters, and they recover from their initial heating faster as well.

Electric Water Heater

Electric water heaters provide heat throughout the tank’s height, thanks to heating rods that run from the top to the bottom of the tank. Heating rods, on the other hand, gain heat at a far slower pace than in gas versions.

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Gas Water Heater

The open flame of a gas water heater burns hotter than the electric rods or components of an electric water heater. Furthermore, because the burner is positioned at the bottom of the stove, it is more efficient because heat rises.

Cost to Operate

In comparison to electric water heaters, gas water heaters have a lower operating cost (approximately 33 percent less).

Electric Water Heater

Electric water heaters have an average monthly operating cost of $42 dollars.

Gas Water Heater

On average, gas water heaters cost around $30 per month to operate. When comparing the cost of gas and electricity in most places, gas is generally less expensive.

Energy Efficiency

Electric water heaters are more energy efficient than gas water heaters when it comes to heating water.

Electric Water Heater

While an electric water heater heats water more slowly and at a higher cost than a gas water heater, it also heats the water more efficiently than the latter. Due to the fact that the heating rods are completely submerged in water in a sealed tank, very little heat is lost.

Gas Water Heater

Despite the fact that gas water heaters burn hotter, they are less efficient than electric water heaters because a large portion of the energy production is lost through the vent at the top of the unit. The vent is required for the proper discharge of harmful gases.


Electric water heaters have a somewhat longer lifespan than gas water heaters, owing to the fact that they operate more cleanly. Electric water heaters have a lifespan of two to three years longer than gas water heaters, depending on the model.

Electric Water Heater

Electric water heaters have a lifespan of 10 to 15 years on average.

Gas Water Heater

Gas water heaters typically last between eight and twelve years before they need to be replaced.


Water heaters powered by electricity and gas are about equivalent in terms of their impact on the environment, with no obvious victor between the two varieties.

Electric Water Heater

Electric water heaters may be used with both the greatest and the worst sorts of energy supply systems available. Solar and wind energy are the best, if not the most common, source of electricity. Electricity generated by polluting coal-fired or nuclear power facilities is the worst case scenario. Some places may have a bigger supply of clean, low-cost power than others, depending on their geographic location. If the electricity in a given location is generated by contemporary, energy-efficient hydroelectric power plants, then an electric water heater would be an environmentally friendly alternative.

Gas Water Heater

When it comes to environmental effect, gas water heaters fall somewhere in the center. Gas is never as awful as energy generated by coal-fired power plants, but it is never as excellent as electricity generated by wind or solar power. Gas is a fossil fuel that cannot be replenished. While natural gas has traditionally been considered a more environmentally friendly source of energy than electricity, certain places have lately passed legislation prohibiting the usage of natural gas.

Compare Quotes From Top-rated Water Heater Installers

Estimates are provided without obligation.

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 Water Heaters Work

To understand how efficiently and effectively a water heater accomplishes its job, let’s take a closer look at what’s going on within the tank. The thermostat on a water heater is responsible for regulating the temperature of the water in the tank. Temperatures between 120 and 180 degrees Fahrenheit are usually OK in most cases (49 to 82 degrees Celsius). For the most part, manufacturers recommend that the water temperature be set between 120 and 140 degrees Fahrenheit (49 to 60 degrees Celsius).

  1. If you have youngsters in your household, it’s best to keep closer to the lower end of the price range than the upper end.
  2. Most of the time, the thermostat is hidden under a protective cover plate and is controlled by a knob or dial that you can turn to adjust the temperature.
  3. The heating device, which can be either a burner or an element, continues to operate until the water reaches the desired temperature.
  4. Close to the top of the tank is a pipe that removes the heat.
  5. Using the theory of heat rising to accomplish the difficult task of separating cold, entering water from hot, departing water is the key to understanding how a water heater is designed for this purpose.
  6. Published on April 1, 2000 in the original version.

How electric water heater works

How electric water heater works Typical 240 volt household water heater has 2 heating elements. the upper and lower elements. Elements are controlled by upper and lower thermostats. Each element is connected to a thermostat.Thermostats are mechanical bi-metal switches that read temperature through side of tank wall and turn elements ON and OFF. Typical water heater thermostats are not voltage specific, and are rated for residential 120 to 240 and any commercial voltages up to 480 volt, including 208, 277, 415, and 480 volt.Residential water heater thermostats can be manually set to temperatures between 90�F to 150�F, or 110� to 160�F, depending on brand and calibration. High Limit trips at 170�F.All thermostat settings are approximate. all values+/- 5%.Higher temperature settings use more electricity. Higher temps over 135�F risk scald and permanent injury.Average bath shower 104�F.Commercial water heater thermostats can have higher, more dangerous range of 120-180�F. Maximum temperature allowed for water heaters of all types is 210�F before the TP valve releases water. Higher temps risk violent steam explosion if TP valve is capped off or removed.Do not install high temperature commercial thermostats on residential water heater. It is unnecessary and dangerous. Typical bath-shower is 104�F.For safety and to avoid scalding, the recommended setting for all water heater thermostats (commercial and residential, gas or electric) that supply potable (drinkable) water into pipes where water can come in contact with people is 120�F.Higher temperature commercial thermostats are used for dishwashing and other high-temperature applications that are often governed by health codes, or need for space heating etc. but high temperatures are never introduced into water pipes where water can come into contact with people. A mixing valve is installed to temper or reduce temperature of very hot water to 120�F before it enters supply lines.ResourcesHow to adjust thermostatsHow to replace thermostat on electric water heater/ commercial and residentialHow to wire thermostatsAdvantages mixing valveHow to increase amount of hot waterElectric water heaters arenon-simultaneous Residential 240 volt 2-element electric water heaters arenon-simultaneous, as can be seen on product label located on side of tank. This means both elements are never ON at same time (simultaneously) unless specific wiring inside heater is changed significantly. One element is ON, or the other element is ON, or both elements are OFF.How to wire water heater for simultaneous operationUpper thermostat is main controller. Starting with a cold tank, upper thermostat turns on upper element until top 2/3 of tank reaches temperature setting. After top of tank is heated, upper thermostat turns-off upper element and sends power to lower thermostat which turns on lower element. Lower element runs until tank reaches temperature setting.Lower element turns on-and-off during standby hours to keep tank temperature at thermostat set point.There is no air inside tank When hot tap is turned on at kitchen sink, hot water immediately exits top of tank. Hot water travels through hot-side pipe until it reaches faucet. At same moment hot leaves top of tank, new cold water immediately enters bottom of tank through plastic dip tube pipe.To save energy, never turn on hot tap when using only cold. because new cold water that enters tank must be heated to set point.ResourcesRead about dip tube9-ways to save with water heaterDuring ‘standby’ hours, between hot water use, lower element maintains tank temperature. Lower element keeps water hot by turning-on approximately 1-4 minutes each hour throughout day and night which equals 45Kwh – 216Kwh each month for standby operation depending on tank efficiency, maintenance, and seasonal incoming cold water temperature. Newer tanks with more insulation, or tanks located in naturally warm area turn on less frequently.ResourcesSee math charts for heating waterKwh hour calculationsOnce hot water is used at faucet, cold water quickly fills bottom of tank. Lower element is a activated first, and when the upper part of tank is below set point, the lower element turns off and upper element turns on, and the heat cycle repeats.The temperature of incoming cold water affects how much energy is consumed. In winter, the incoming water is colder. Colder water means the elements must heat longer to reach the thermostat set point.Average groundwater temperatureTempering tank

ProLine® Electric Water Heaters and Storage Tanks

  • Showing 1-15 of 65 results for “shower page” Gallons? The nominal capacity of a product is a typical number offered by the manufacturer for the purpose of comparison. Detailed information about our water heaters’ actual rated storage volume may be found on their respective product details pages on our website.

Technology Product Tiers are a classification system that categorizes products according to their level of quality. Product Tiers are a classification system that categorizes products into groups based on their quality and reliability. Mobile Home Parked on a sloping lot Warranty on the Tank is limited. Connection to the water supply Showing 1-15 of 65 results for “shower page”

Residential Electric Tank Water Heaters

An industry pioneer in water heater innovation, A. O. Smith electric tank water heaters are constructed with commercial-grade components to provide greater durability and dependability over the long term. The long-term performance of our electric tank residential goods has been rigorously evaluated in our labs, allowing you and your family to have piece of mind about your purchase for years to come.

Benefits of Electric Tank Water Heaters

  • When replacing a similar model with the same electric power requirements, electric tank water heaters are a quick and simple installation for any home to complete. A. O. Smith highly advises that you seek the services of a professional installer to ensure a timely and proper installation.

Hot Water Storage Supply

  • Unlike storage tanks, tank water heaters have a steady supply of hot water on hand for when you need it most.

Long Lasting

  • In order to guarantee that your home has hot water for many years to come, A. O. Smith water heaters are constructed to last. Limited warranties ranging from 6 to 10 years are available to ensure that your home has hot water for many years to come.
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A Closer Look

A. O. Smith is a fictional character created by American author A. O. Smith. Electric tank water heaters use one or two electric heating elements to heat the water in their tanks. Whenever a hot water tap is turned on, the water pressure from the street forces cold water into the system through a dip tube, which directs it to the bottom of the storage tank. This forces hot water from the tank’s top out to the hot water pipes, where it may be distributed around the house to warm everyone’s feet.

  1. A thermostat, a temperature and pressure relief valve, and a drain valve are all included with each electric tank water heater.
  2. The thermostat cycles the heating components in order to maintain the water temperature at the preset temperature on the control.
  3. According to your requirements, gas tank water heaters and electric tank water heaters each provide a unique set of features and advantages.
  4. They are, however, more expensive up front and are dependent on the availability of a gas supply line as well as suitable ventilation at the installation site.
  5. Electric tank water heaters are an energy-efficient option for heating the water in your home’s plumbing system.
  6. O.
  7. Despite the fact that electric water heaters recover at a slower pace than gas water heaters, electric versions can be less expensive to purchase and installation expenses are often less expensive than gas models.

While you may be able to install an electric tank water heater on your own, A.

Smith highly advises that you seek the assistance of a local plumber or contractor to assist you with the installation of your water heater.

add circle outline What are the benefits of using an electric tank water heater instead of a gas one?

In addition to having a minimal up-front cost, they are quick and simple to install.

add circle outline What size electric tank water heater do I need?

When choosing on the size of an electric tank water heater to purchase, there are a number of factors to take into consideration.

A. O. Smith provides a choice of types and sizes to fit your house and the demands of your family, ensuring that you never have to worry about running out of hot water once you have one. Consult A. O. Smith’s online XPERT TMProduct Selector to find the right product for you.

Point-of-Use Electric Mini-Tank Water Heaters

A. O. Smith’s point-of-use electric tiny tank water heaters are designed to meet modest water heating requirements or to service a particular application. Learn More About Point-of-Use (PoU) Systems

Compare: High-Efficiency Hybrid Electric Heat Pump Tank Water Heaters: Standard Electric Tank Water Heaters:ENT-50
Single Shower Length 33 minutes 27 minutes
Back-to-Back Showers 4.2 showers 3.4 showers
Showers at the Same Time 2.9 showers 2.9 showers
Maximum Tub Size 85 gallons 75 gallons
Energy Star ®Certified check_circle_outline
UEF 3.45 0.92
Warranty 6 – 10 Years 6 Years
*Many factors affect the actual performance of a water heater. This represents our closest approximation of your likely experience with this water heater in your local area, but actual performance may vary depending on factors beyond our ability to control or estimate.

Water heaters manufactured by A. O. Smith are professionally installed by independent contractors in the local area. GET IN TOUCH WITH A LOCAL INSTALLER

Not sure which water heater is right for you?

Make use of our product picker tool to choose the best model for your needs. Please Assist Me in Making My Decision

Contractor Resources

  • Detailed Instructions for Setup Installation instructions for our electric tank waterheater may be found here. See the document
  • Guide to Obtaining Resources Match the flow rate to the requirements of your customers. Cross-reference tool for viewing documents Look for replacement products that are NAECA-compliant. Make use of a tool.

How Does a Hot Water Heater Work? Let Us Explain!

The less you have to think about your hot water heater, as is the case with most other household utilities, the better. The only thing that is actually vital to know is that it is operating to provide your house with the hot water that it requires. Nonetheless, having a basic understanding of how your water heater operates is always important. If the machine is one that is utilized on a regular basis, this is especially true. Water heaters are responsible for ensuring that water is delivered via the pipes to its intended destination at the right temperature every time you shower, wash dishes, or do a load of laundry.

Hot Water Heater Components

First, we’ll take a look at the many components that work together to provide you with the hot water you require. With the exception of a few minor variations, these components are shared by both electric and gas water heaters. It is possible that this will provide an answer to your inquiry about “how does a hot water heater work?”


The vast majority of water heaters seen in houses throughout the United States have enormous, insulated tanks that hold hot water. These water heater tanks are available in a variety of sizes, commonly ranging from 20 to 80 gallons in capacity. The size of the tank should be proportional to the number of people who will be using hot water in the home, and the normal household tank has a capacity of 40-60 gallons of water.

Dip Tube

The dip tube is the point at which cold water from your home’s municipal water supply, well, or other water source is introduced into the tank for storage. It is right before the water heater that your main water line separates. Water is pumped from the main valve to your cold water faucet through a cold water service line when you switch on the cold water faucet. The water that comes out of the hot water tap is channeled via the dip tube and into the hot water storage tank. This occurs prior to the water traveling through the hot water service line to the house.

The cold water enters via this opening and is subsequently heated by the water at the bottom of the tank.

Heating Element / Gas Burner

A heating element in the tank of an electric water heater heats the water within the tank to a desired temperature. When using a gas water heater, the heating mechanism is provided by a gas burner. Both of these items may be found near the bottom of the tank.

Anode Rod

Another safety step is the use of anode rods.

It does this by electrolyzing the tank and preventing rust from forming. In this case, the metal-coated steel rod (which is often coated in aluminum, zinc, or magnesium) rusts instead of the steel lining that is used to line the tank’s internal walls.


Water heaters are equipped with a thermostat on the outside that allows you to monitor and change the temperature of the water being heated.

Heat-Out Pipe

The hot water service line is the pipe that transports hot water from the tank to the hot water service line. It may be found at the very top. The hottest water rises to the top of the tank due to the fact that hot water has less density than cold water (and heat rises by its own nature).


  • Valve for Drainage– The drain valve is positioned near the bottom of the tank, on the exterior of the tank. The drain valve, as its name implies, is responsible for draining off silt that has accumulated inside the tank. Shut-off Valve– A shut-off valve is located on the outside of the water heater. Essentially, this stops the flow of water into the tank. Pressure Relief Valve– The water inside the tank is extremely pressured, necessitating the use of a pressure relief valve. An emergency pressure relief valve is designed to prevent pressure from accumulating to a dangerous level.

How Does a Hot Water Heater Work?

So, how do all of these components interact with one another? What is the operation of a hot water heater? So, here’s a synopsis of the situation. The trip of your hot water begins with the main water pipe and continues to your shower, washing machine, sink, dishwasher, and other appliances. Water heaters that use gas or electricity are both tank-type water heaters. These are the most prevalent types of water heaters that may be used in residential settings. They both function substantially on the same premise, with the primary differences being in their different heat sources.

Here’s how a water heater works:

In order for water to enter your home, it must flow via the main water line. Just before the water heater, the line is divided into two different paths, each of which serves as the water intake system for your home. After that, you switch on the hot water faucet. Ice-cold water pours through the shut-off valve and into the water heater tank, where it will soon be heated to a comfortable temperature. The water is heated by the heating mechanism located at the bottom of the tank in accordance with the thermostat setting.

After that, you switched on the hot water faucet, and additional water poured into your hot water tank through the dip tube.

This hot water rises via the heat-out pipe and is sent to the hot water faucet.

Tankless Water Heaters

A tankless water heater is another alternative that is becoming increasingly popular, albeit being less prevalent. Tankless water heaters do not store hot water in a tank that is constantly heated; instead, they heat water only when it is required. When you turn on a hot water faucet, a flow sensor in the tankless water heater unit is triggered to respond. Assuming the tankless unit is fueled by gas, this sensor switches on an internal fan to pull in air, opens the gas valve, and ignites the burner by activating a gas valve inside the tankless unit.

In either scenario, the heat exchanger inside the unit is warmed, and the water is heated to a certain temperature as a result of this heating.

As a result, there is no need to store hot water in a tank and there is no need to use the energy required to maintain a high temperature on a consistent basis.

With a tankless unit, you will never run out of hot water since there is no tank to run out of water.

Tankless water heaters are also safer and endure for a longer period of time. These advantages, on the other hand, come at a larger cost up front than with a traditional hot water heater, which is why they are more expensive.

Hot Water, Whenever You Need It

When you grasp the fundamentals of how a hot water heater works, it isn’t too tough to comprehend. If you’re experiencing problems with your hot water heater, require basic maintenance, or wish to investigate replacement alternatives, you’ll need a dependable plumber you can rely on to get the job done right. South Jersey residents may turn toLaury Heating Cooling Plumbing for the best quality plumbing services available.

Electric Tank Water Heaters for your Home

Proposition 40 (RH93 CS), Proposition 55 (RH93 CS), Proposition 40 (RH93 CS), Proposition 55 (RH93 CS), Proposition 40 (RH93 CS), Proposition 55 (RH93 CS), Proposition 55 (RH93 CS), Proposition 55 (RH93 CS), Proposition 55 (RH93 CS), Proposition 55 (RH93 CS), Proposition 55 (RH93 CS), Proposition 55 E40M12CS55U1, XE50T12CS55U1, XE50T12CS45U0, XE50M12CS45U0, XE55T12CS45U0, XE55T12CS45U0, XE50M12CS45U0, XE50M12CS45U0, XE55T12CS55U0, XE50M12CS45U0, XE50M12CS MR15120,MR20120,MR20230, The PROE50 1 RH95 MH, the PROE30 1 RH95 MH, the PROE40 1 RH95 MH, the PROE20 1 RH MH, the PROE30 2 RH95 MH, the PROE40 2 RH95 MH, and the PROE50 2 RH95 MH are all RH95 MH.

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