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ENERGY STAR Certified
Water Heaters

Visit the  Water Heaters page for usage tips and buying guidelines.
Solar water heater products have requirements for Solar Energy Factor (SEF), not Energy Factor (EF). For complete information on all products, click the product link or download the full product list in Excel.

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1263 Records Found

compare 2-4 products
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Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.72
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.6
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.6
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):
Heat Pump - Electric
Energy Factor:
2.5
Thermal Efficiency (TE):