Above Ground Pool Heaters and Heat Pumps

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Natural Gas & Propane Pool Heaters for an Above Ground Pool If you want a natural gas or propane pool heater for an above ground pool, you're in the right place. We carry compact, weather-tough propane heaters from Pentair, Raypak, and Hayward, and we're an authorized dealer for all three. Every order ships free. This collection also includes natural gas heaters, heat pumps, and other options for above-ground pools. If you're still deciding between fuel types, the comparison section below breaks down propane vs. natural gas vs. heat pumps vs. solar. Above Ground Pool Heater Gas Units An above ground pool heater gas unit burns natural gas or propane to heat your pool water on demand. Gas heaters work by sending water from your pump and filter through a heat exchanger inside the unit, where it absorbs heat from combustion gases before returning to the pool warmer. The two gas fuel options are propane and natural gas. Propane is more common for above-ground pools because the tank sits next to the heater and gets refilled or swapped like a grill tank, just bigger. How a Propane Above Ground Pool Heater Works A propane above ground pool heater burns fuel to heat pool water through a heat exchanger: Combustion. Propane mixes with air in the burner and ignites, producing hot combustion gases. Heat transfer. The combustion gases flow around a copper or cupronickel heat exchanger. Pool water pumped from your circulation system flows through the exchanger tubes, absorbing heat from the hot gases. Return to pool. The warmer water flows back to the pool through the return jets. Exhaust. Cooled combustion gases vent out the top of the heater. BTU output is the rating that tells you how much heat a unit can produce per hour. For above-ground pools, common sizes run from 100,000 BTU/hr (small pools) to 200,000 BTU/hr (large pools or faster heat-up). Why propane Propane has practical advantages for above-ground pool owners: No gas line required. The tank lives next to the heate