Fire Pit and Patio Heater Calculators
Five free calculators for heater size, gas line size, propane runtime, clearances and fire glass, with no account needed. Run them before you buy to check that a fire feature will work where you want it.
Propane Tank Runtime
How many hours a tank gives you at that output.
Open Calculator: Propane Tank Runtime
Formula and Sources on Every Result
Each result lists the formula, the assumptions behind it and every source we used, with the date we checked it. When the answer depends on your city or on the manufacturer's manual, the result says so. The clearance checker prints a reminder on every result that your local authority has the final word.
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