Pool Heater Operating Cost Calculator
Choose natural gas, propane, or electricity and enter the heater input rating, hours, and price in the matching energy unit. This estimates energy cost, not how long your pool will take to heat. Fixed fees, tiered rates, and changing operation are omitted.
Illustrative example: A gas heater with 400,000 BTU/h fuel input running for 5 hours uses 20 therms. At $2 per therm, energy cost is about $40. For heating time, use delivered heat to water in the separate heater time calculator in the Knowledge Hub.
Plan your heating project
Use realistic operating hours
Hours should reflect the conditions you want to compare. A different heater can deliver a different amount of heat per hour, so equal run time does not necessarily mean equal pool heating.
Pool Heater Operating Cost
Estimate natural gas, propane, or electricity cost from heater input, operating hours, and your energy price.
Uses fuel input, not delivered heat. Excludes fixed fees, tiered prices and other loads.
