Heat Pump Water Heater Savings Calculator
Compare annual water-heating energy and cost for a conventional electric heater and a heat-pump water heater using editable hot-water use, efficiency, COP and energy price.
Default project preview
$416.18 per year
Current annual energy
3,288 kWh
Heat-pump annual energy
976 kWh
Annual thermal demand
3,124 kWh
Simple payback
4.3 years
Calculator
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Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Water-heating demand uses water volume × temperature rise × water heat capacity. Current input divides by efficiency; heat-pump input divides by COP. Savings equal the annual input-energy difference × electricity price.
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FAQ
Heat Pump Water Heater Savings Calculator questions
Why does installation location affect savings?+
A heat-pump water heater draws heat from surrounding air, so ambient temperature and available room volume affect performance.
Does this include cooling or dehumidification benefits?+
No. Any effect on surrounding-space heating or cooling is excluded.
Is simple payback the same as lifecycle cost?+
No. Lifecycle analysis also includes maintenance, replacements, financing, incentives and future energy prices.