Water Heating


Did you know that most homes’ second-largest energy user is the water heater? Find out how investing in the right water heater can translate into big savings.

Electric Water Heaters

About 20 percent* of your home’s energy goes to water heating. Take control of your energy use by choosing an electric water heater and see how economical and efficient it can be.

No flames, no fumes, no flues
With an electric water heater, there is no pilot light to worry about, no fumes from gas or carbon monoxide, and no ventilation problems. An electric water heater is low-maintenance and has a long life expectancy. It’s also economical. A family of four can have all the hot water it needs for about $39 per month.*

Rebates and incentives are available for Georgia Power customers. Visit the Water Heating Program page to view qualifying details

Video: Marathon Water Heater

*Estimated energy costs based on the average-size home in Georgia (2,146 sq. ft.) utilizing Georgia Power Company’s EZSIMRES energy-simulation program. Estimated costs include water-heating cost only. Electric costs based on Georgia Power residential R-17 rate and FCR – Schedule 23. These figures are estimates only — actual energy costs will vary based on individual equipment and usage.

Heat Pump Water Heaters

The water heater is the second largest consumer of electricity in your home. Making a smart decision when purchasing or replacing your water heater can mean big savings over the lifetime of your water heater. A Heat Pump Water Heater is 2 to 3 times more energy efficient than a standard water heater.

How it Works
It’s very simple! A heat pump water heater works by pulling heat from the surrounding air and using it to heat water in your water heater. It is a transfer of heat; and because you are using existing heat, instead of creating heat (like a standard water heater does) you are using less electricity.

What Makes It Energy Efficient

To see how energy efficient a heat pump water heater is, look out for the Energy Factor (EF) and First-Hour Rating (FHR):

The Energy Factor indicates a water heater’s overall energy efficiency based on the amount of hot water produced per the energy used over a typical day. The higher the EF, the more energy efficient the water heater. The EF is measured in three ways:

  1. Recovery Efficiency – how efficiently the heat from the energy source is transferred to the water.
  2. Standby Losses – the percentage of heat loss per hour from the stored water compared to the heat content of the water (water heaters with storage tanks).
  3. Cycling Losses – the loss of heat as the water circulates through a water heater tank and/or inlet and outlet pipes.

First-Hour Rating is an estimate of the maximum volume of hot water in gallons that a storage water heater can supply within an hour that begins with the water heater fully heated.

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  • Lower annual energy costs
  • Peace of mind – no flues or pilot lights
  • Easy installation – a simple frame makes for easy installation
  • Operating modes to maximize efficiency and lifestyle adjustments
  • Dehumidifying and cooling the surrounding air

For more information call 1-800-524-2421.

Solar Water Heaters

A solar water heater can be used in any climate and, best of all, the energy source it uses – the sun’s light — is 100 percent free.

Rebates and incentives are available for Georgia Power customers. Visit the Water Heating Program page to view qualifying details

How it Works
Solar water heaters work by pre-heating the water prior to entering the conventional water heater. A solar water heater preheater can significantly increase the water’s temperature. Using this preheater, the water enters the conventional heater at 50°F to 60°F. Then energy is added to heat the water to the desired temperature of about 120°F.

With a solar water heater, the cold water is piped to the solar collector — the area that “collects” and transfers the sun’s heat — where it is warmed by the sun. Then it is sent to the water heater tank. Supplemental heat from a conventional water heater is used only when the heat from the solar collector is below your water heater thermostat setting.

A variety of solar water heaters are available commercially, most of which should last 15 years or longer. They are divided into three categories:

Active systems — These systems use electric pumps to move the heated water to the storage tank.
Thermosiphon systems — Also known as “passive” systems, these models rely on the natural processes of gravity and convection to move the water from the collector to the storage tank.
Batch systems — With a batch system, the solar collector is also the water tank.


Federal Tax Credits:
Federal income tax credits are available for residential solar water heaters in the amount of 30 percent of the cost provided the solar water heater is certified for performance by the Solar Rating Certification Corporation or comparable entity endorsed by the state of Georgia. For more details, please visit http://www.energystar.gov.
This information is not intended to be taken as tax advice. We suggest you contact your tax advisor with any questions about your specific situation.

The Marathon® Water Heater

All-electric Marathon water heaters are the toughest water heaters on the market today.

A Marathon is built to limit many of the causes resulting in water heater failure:

  • No anode rod is required for a corrosion free life
  • The unique, seamless plastic tank provides a stronger construction to avoid leaks caused by expansion and contraction
  • And the award winning design helps prevent sediment build-up

Every Marathon water heater comes with a manufacturer’s lifetime tank warranty. Marathons are tough on the outside with an inner tank that won’t rust, corrode, or leak—ever. The Marathon water heater is environmentally friendly, built to last a lifetime in your home, not in a landfill.

Rebates and incentives are available for Georgia Power customers. Visit the Water Heating Program page to view qualifying details

Video: Marathon Water Heater


  • $525 Rebate
  • Manufacturer’s lifetime tank warranty
  • Environmentally Friendly

Next Steps

For more information call 800.524.2421, ext. 100, or email us*.

*Certain restrictions may apply. Must be a Georgia Power customer to qualify for rebate. Rebate offer ends Dec. 31, 2015.