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Interactive calculators: BTU sizing, heating time, running cost, heat pump vs gas. Updated automatically as new guides publish.
- Heat Pump vs Gas Pool Heater — Season Cost ComparedUpdated 2026-10-31
- Pool Heating Time Calculator — How Long to Heat a PoolUpdated 2026-10-31
- Pool Heater Running Cost Calculator — By Fuel TypeUpdated 2026-10-31
- Pool Heater Calculators — BTU, Time, Cost & Fuel ComparisonUpdated 2026-10-31
More on Pool Heater Calculator: pool heater sizing guide · heat pump vs gas.