3 Things to Know About Sizing a Pool Heat Pump

Size by surface area, not volume Heat pumps replace lost heat, and most heat loss happens at the surface through evaporation. Pool volume is irrelevant for sizing.

Multiply surface area by BTUs Take your pool’s surface area in square feet and multiply by 10 to 14 BTUs. Use 10 for mild climates with a 5°F temperature rise, and 14 for cooler climates or a 10°F+ rise.

Ignore common sizing myths Don’t base your choice on pool volume or manufacturer claims that ignore surface area. The math is straightforward and reliable.