Comparison guide

Heat pump vs gas vs solar pool heaters

All three can warm a Palm Beach pool. They differ in speed, running cost and what your property needs. Here's how they stack up.

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Pool heater comparison: heat pump, gas and solar
Feature	Heat pump	Gas	Solar
How it heats	Pulls heat from the air with a compressor	Burns natural gas or propane	Circulates water through roof collectors
Heat-up speed	Slow — hours to days	Fast — degrees per hour	Slow, sun-dependent
Running cost	Low	High	Near zero
Upfront cost	Moderate to high	Low to moderate	Moderate to high
Efficiency	COP ~5–6 in warm air (5–6 units of heat per unit of electricity)	~80–95% combustion efficiency	Free energy, limited by sunlight
Works best when	Air is above ~50°F — most of the year here	Any weather, any time	Sunny days; weak on cloudy stretches
Typical lifespan	10–15 years	7–12 years	15–20 years for collectors
Maintenance	Rinse coils, annual check	Burner, igniter & venting service	Check panels, valves & leaks
Needs	Dedicated electrical circuit	Gas line & venting clearance	Suitable roof area & orientation
Ideal for	Regular, year-round swimming	Spas & occasional quick heat	Eco-minded owners with roof space

Figures are typical industry ranges; actual performance depends on the model, pool size, cover use and local weather.

Our take

Which pool heater is right for you?

you swim most weeks and want the lowest monthly cost. In Palm Beach County's mild winters, this is the default recommendation.

you only heat for weekends or guests, have a spa, or want the water warm tonight no matter the weather.

you have a large, south- or west-facing roof and are happy with warmer-not-hot water most of the year.

you want both economy and speed — a heat pump for the everyday plus gas for spa nights is a common Florida setup.

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