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Pool planning estimate

Swimming Pool Heat Pump Calculator

Size a swimming pool heat pump and compare estimated operating costs with a natural gas pool heater.

ZIP Code

We use your location for climate conditions and estimated local energy rates.

Enter a five-digit U.S. ZIP Code.

Enter a ZIP Code to look up climate and rate estimates.

Pool Size

Use dimensions or enter a known volume. Surface area is retained for the heat-loss estimate.

How would you like to enter the pool size?
gal
ft
Estimated surface area—
Estimated pool volume—

The calculator confirms the final geometry before sizing.

Water Temperatures

Set the starting temperature for first heat-up and the temperature you want to maintain.

°F

Used only for the provisional first-time Boost heat-up estimate.

°F

Choose a target between 70°F and 95°F.

Months of Use

Select every month you expect to heat the pool. Sizing uses the toughest selected condition.

All 12 months selected.

Pool Cover

A cover can reduce heat loss while the pool is not in use.

How is the pool covered?

Local Energy Rates

Rates are estimates when available. You can always update them from your utility bill.

$/ kWh

Enter a rate manually or update ZIP Code to load an estimate.

$/ therm

Enter a rate manually or update ZIP Code to load an estimate.

Estimated local energy rate. Update this value using your utility bill for a more accurate estimate.

Advanced Settings Gas efficiency and sizing margin
%

Default: 80%. Set the efficiency printed on your heater when available.

%

Default: 15%. This margin is applied to the toughest selected month.

Ready for an estimate?

We will size the heat pump first. Operating-cost comparison appears when both rates are available.