Water Heater Ratings Energy Star

If a water heater meets these requirements then it is eligible to be included in the energy star program.

Water heater ratings energy star.

The energy star water heater with heat pump has an energy factor of 2 5 250 more energy efficient the doe calculator won t take a number above 95 so divide the standard standard electric water heater s annual operating cost by 250 use the key. Water heaters that earn the energy star come with gas solar or electric heat pump technology. Energy star certified water heaters are an easy choice for energy savings performance and reliability. Water heaters are the second highest source of energy usage in the home.

They use less energy than standard models saving homeowners money on their utility bills while helping protect the climate. A water heater can be certified as energy star by meeting energy factor ef standby loss and or thermal efficiency criteria or by meeting uniform energy factor uef criteria. The tank must hold a maximum of 1 gallon of water per 4 000 btu per hour of input. They heat your water just like standard models but with much less energy saving you up to 3500 over a unit s lifetime.

This will give you the annual operating cost for a heat pump water heater. Although these performance metrics are different certification as energy star by either method requires equivalent efficiency. Water temperature must be controlled up to 180 f. Efficiency and performance for energy star certified water heaters may be evaluated using two different methods.