Answer
Apr 01, 2026 - 12:45 PM
To heat a 30,000-gallon pool efficiently, you typically need a pool heater with a capacity of 250,000 to 400,000 BTUs. The exact size depends on how quickly you want to heat the pool and your local climate, but a 300,000 to 400,000 BTU heater is a common choice for this pool size.
