How Long Should a Pool Heater Last?

Gas heater lifespan varies with install location and chemistry. Salt-safe models installed in coastal zones like Siesta Key, Longboat Key and Casey Key generally hold up better than standard cabinets in the same salt-air environment.

Heat pumps generally last longer than gas heaters on paper, but refrigerant leaks become more common as they age.

The biggest lifespan factor is water chemistry — high pH can create scale that damages heat exchangers regardless of brand.