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Energy Savings Helper

Heat Pump Water Heater

Calculate annual energy and cost savings from installing a heat pump water heater in Illinois. Includes HVAC interaction effects for cooling, heating, and dehumidification.

Equipment
What type of water heater are you replacing?
Rated storage volume of your current water heater, in gallons
Efficiency (Uniform Energy Factor) of the NEW heat pump water heater you're installing — from its EnergyGuide label. Higher = more efficient. ENERGY STAR models are 2.0+.
Gallons of hot water your current heater can deliver in one hour — printed on its yellow EnergyGuide label. It decides which federal efficiency standard your old tank had to meet, so it sets what the new unit is measured against.
Building
How many people live in your home? More people use more hot water, which increases savings.
HVAC Interaction
Where will the heat pump water heater be installed? Unconditioned means a space you don't heat or cool, like a garage, basement, or utility room.
Do you regularly run a plug-in dehumidifier (often in a basement)? A heat pump water heater also dries the air around it, so it can take over some of that work.

Frequently Asked Questions

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