0
No, but close to it.
In regards to just the heating of the water, Tank-type, and tank-less, electric water heaters are about 99% efficient* because the heating elements are immersed in water, and little energy is wasted between heat source and water.
However, all tank-type water heaters loose heat from their reservoirs (tanks). This heat loss lowers the overall efficiency.
Most electric heaters fall between 90-95% total. This is the number that is usually reported by the manufacturers.
* Efficiency is not the same as cost savings. For example electric heaters have higher efficiency, but cost more to operate than same-size gas water heater. Also tankless gas heaters, gas water heaters with blowers, and gas heaters with high recovery may claim higher efficiency, but they consume more fuel per hour of operation.
Additional Information:
Efficiency of heating elements does not consider inefficiencies in production, transmission, refining, and delivery of electricity. Estimates say coal-fired power plants waste half the energy of coal during electric generation. However hydroelectric power plants are very efficient.
Tank-type gas water heaters are 69% efficient, since hot combustion gas escapes out the flue after hydrogen content of fuel is burned. This number does not consider inefficiencies during production, transmission, refining, and delivery of gas.
Tank-less gas water heaters are 79% efficient, but tank-less burn more gas per gallon of hot water than tank-type heaters. Hot combustion gasses are released out the flue and are not actively recycled without slowing combustion which turns off unit. Newer type tank-less with blower recycles heat into a tank operate at 96% efficiency, and are made for oversize consumption of both energy and hot water.
High efficiency tank-type gas heaters operate at 96% efficiency by using blowers to circulate hot combustion gas through coiled tube located inside tank. Same amount of combustion gas is released since only heat is recycled. The use of electric blower affects overall cost.
Environmental efficiency: Electric water heater does not release CO2 at each home, instead CO2 is localized at power plant. Gas water heaters release CO2 at each home which factor in environmental efficiency.
Efficiency of all gas water heaters falls and cannot be fully restored if untreated hard water deposits sediment over heat transfer surface. Generally, gas heaters exposed to hard water require softener which affects overall efficiency.
Efficiency of tank-type electric water heater remains at 99% until sediment reaches element, causing element to burn out. Full 99% efficiency is restored by cleaning out tank and replacing element. Generally, tank-type electric heater does not require water softener.
Downsizing water heater, reducing consumption, selecting water heater with fewer parts, reading the manual, and draining tank each 6 months to avoid sediment are key to saving energy.
What else can I help you with?
Who makes General Electric water heater?
Rheem
What is electric water heater which used in house?
An electric water heater in a hot tank is called an immersion heater and many of those run at 3 kW with a thermostat to control the max temperature. Power showers use a type of water heater that heats the water at the point where it is used, without a tank. They run at 6-8 kW and are also controlled by a thermostat.
What is the difference between an electric mobile home hot water heater vs a regular electric hot water heater?
Not much actually,a Mobile Home water Heater has the water connections going into the side where as a Regular Water Heater has the connections at the top. So if you have enough room above a mobile home water heater you can install a regular water heater no problem.However a lot of mobile homes do not have room above the water heater so your forced to use a Mobile Home water heater instead. Which usually costs about a hundred more than a regular one.
Why does my gas water heater need to be hooked up to a 30 amp breaker with 220 volts?
A gas water heater doesn't use electricity to heat water like an electric water heater does. The electrical connection is typically for powering the ignition system or other electronic components on the gas water heater. The 30 amp breaker with 220 volts is required to safely supply power to these components.
I want to go on vacation and turn off my electric water heater using the switch on my fuse box My question is is it bad for an electric water heater for the electric power to be cut off?
No, turning off the electric power to your water heater temporarily should not harm it. Just remember to turn it back on when you return to avoid issues like freezing pipes or electrical problems.
What is the most efficient electric hot water heater available on the market?
The most efficient electric hot water heater available on the market is the heat pump water heater.
What is the most efficient electric water heater available on the market?
The most efficient electric water heater available on the market is the heat pump water heater, which uses electricity to move heat from the air or ground to heat water, making it more energy-efficient than traditional electric water heaters.
Is a tankless electric water heater more efficient than a gas water heater?
Normally NO
What is the most efficient method Water heater?
One of the most energy efficient water heating methods is the heat pump water heater. This method is proven to be two times more efficient over the standard electric water heater.
What are the differences between a tankless water heater and an electric water heater?
A tankless water heater heats water on demand, while an electric water heater stores and heats water in a tank. Tankless heaters are more energy-efficient and provide unlimited hot water, but may have higher upfront costs. Electric water heaters are cheaper upfront but have limited hot water capacity and may be less energy-efficient.
What are the benefits of investing in an energy efficient electric water heater for your home?
Investing in an energy-efficient electric water heater for your home can lead to lower energy bills, reduced environmental impact, and a more reliable and consistent supply of hot water.
What are the key differences between a hybrid water heater and an electric water heater, and which one is more energy-efficient and cost-effective in the long run?
A hybrid water heater combines heat pump technology with traditional electric heating elements, while an electric water heater solely relies on electric heating elements. Hybrid water heaters are generally more energy-efficient and cost-effective in the long run compared to electric water heaters, as they use less electricity to heat water.
What are the benefits of replacing an electric water heater with a more energy-efficient model?
Replacing an electric water heater with a more energy-efficient model can lead to lower energy bills, reduced environmental impact, and potentially longer lifespan of the appliance.
What are the key differences between an electric tank water heater and an electric tankless water heater?
The key differences between an electric tank water heater and an electric tankless water heater are that a tank water heater stores and heats a large amount of water continuously, while a tankless water heater heats water on demand without storing it. Tankless water heaters are more energy-efficient and space-saving, but may have limitations on the amount of hot water they can provide at once.
What are the differences between a tankless water heater and an electric water heater, and which one is more efficient for providing hot water in a household?
A tankless water heater heats water on demand, while an electric water heater stores and heats water in a tank. Tankless heaters are generally more efficient as they only heat water when needed, but electric heaters may be more cost-effective upfront. Ultimately, the choice depends on household hot water usage and energy efficiency priorities.
What are the benefits of an efficient electric water heater compared to traditional water heaters?
An efficient electric water heater can save energy and money compared to traditional water heaters. It heats water quickly and maintains a consistent temperature, reducing energy waste. This can lead to lower utility bills and a smaller environmental footprint.
What are the benefits of investing in an energy-efficient electric water heater?
Investing in an energy-efficient electric water heater can lead to lower energy bills, reduced environmental impact, and potentially qualify for rebates or tax incentives. Additionally, these water heaters often have longer lifespans and provide consistent hot water supply.
