Electric Water Heaters

Electric water heaters

The term "electric water heater" usually refers to a tank-type water heater that relies on electricity as a heat source. Tank-type water heaters are also known as "storage water heaters," since they are designed to store hot water until someone turns on a hot water faucet, washing machine or dishwasher.

Like other tank-type water heaters, an electric water heater has a thermostat and a temperature control. When the water in the tank cools below a preset temperature control, the electric heating element goes on automatically and stays on until water temperature rises to the preset level. To help reduce standby heat loss (and save energy), an ENERGY STAR®-rated tank-type water heater has a thick layer of insulation on the outside of the tank. But even with ample insulation, the efficiency of an electric, tank-type water heater is limited because when the water in the tank eventually cools, it must be reheated.

Replacing an old electric water heater is an opportunity to save energy

Size recommendations for electric, tank-type water heaters

Family Size Tank Size (gal.)
2 30
2-3 40
3-4 50
5+ 80

Most electric, tank-type water heaters need to be replaced after about 15 years. An older tank-type water heater will consume more energy than it should (compared to current ENERGY STAR models). An old tank-type water heater also has the potential to start leaking because of corrosion on the tank interior. Since heating water for domestic use can account for as much as 15% of a household's total energy expenses, it makes sense to replace an old water heater with a more efficient model. The chart at right will help you select the right tank size based on how many people are using hot water.

NOTE: Heat pump water heaters are also powered by electricity, and store heated water in a tank. To achieve a much higher level of energy efficiency when replacing an old electric, tank-type water heater, consider purchasing a new heat pump water heater.

Electric water heaters at a glance

  • A wide selection of efficient ENERGY STAR® electric, tank-type water heaters are available from numerous manufacturers.
  • Electric, tank-type water heaters are less expensive to buy than other types of water heaters.
  • Different tank sizes are available to suit different household needs.
  • Replacing an old tank-type water heater with a new model can usually be done quickly and easily.
  • Even ENERGY STAR electric tank-type water heaters will experience standby heat loss, which can waste energy.
  • The supply of hot water is limited by tank capacity, so if hot water demand is high enough, it's possible to run out of hot water.
  • Corrosion and other wear factors can limit service life to 15 years or less.

our service area

We serve the following areas

Our Locations:

865 County Road 6
Phelps, NY 14532

1730 Mecklenburg Rd Suite B
Ithaca, NY 14850

204 Bass St
Liverpool, NY 13088

365 N. Washington St
Rochester, NY 14625
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