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Pool Heater Cost Calculator

Heating therms with total, per-session, and per-hour cost from BTU, hours, efficiency, and gas price.

Inputs

Inputs and assumptions

Heater output BTU per hour.

Heating hours in the period.

Gas price per therm.

Heater efficiency, gas about 0.8.

Result

Heating cost
$9.38
Cost per hour (USD)
$1.88
Gas used (therms)
6.3
Planning estimate, not a quote. Rates, soil, access, and local rules move real prices — confirm with itemized quotes.

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Guides

01 Pool Heating Cost Guide (2026)

Related articles

01 Pool Build Budget Guide: Costs and Planning for 2026 02 Pool Pump Runtime Guide: Calculate Turnover and Set Your Schedule 03 Pool Heating Cost Guide (2026)

Workspace

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