The most effective way to maintain ideal water temperatures, natural gas pool heaters are up to 97 percent energy-efficient and warm the water twice as fast as electric heaters, according to the American Gas Association.

Natural gas pool heaters are available for any size pool or spa, and there are also a variety of natural gas heaters for spas and hot tubs. When installing a new natural gas heater for your pool or hot tub, always have a qualified natural gas contractor do the work. Find a Contractor.