Propane pool heaters function much like home water boilers; water passes through a combustion chamber of the heater, where it is heated by copper coils. The warmed water then flows back to the ...

We've been independently researching and testing products for over 120 years. If you buy through our links, we may earn a commission. Learn more about our review process. A reliable pool heater can ...

Pool heaters are a worthwhile investment for making the most of your swimming pool during the summer season—and beyond. Without a heater, mother nature is your thermostat—and even a long day of warm ...