Plumbing, Piping & Hydraulics

Gas Piping & BTU Load Calculators

Sizing natural gas and LP piping and computing appliance demand, following the NFPA 54 / IFGC longest-length method and the Spitzglass-family pressure drop tables. Used by plumbers, gas fitters and HVAC installers.

2 calculators in this category

Natural Gas Pipe Sizing CalculatorNFPA 54 / IFGC low-pressure equationGas pipe is sized on two numbers: how much gas the section has to carry, and how far the gas has to travel to the appliance…
Gas Appliance BTU Load CalculatorNFPA 54 total connected loadEverything downstream of a gas meter starts with one number: the total connected load, in BTU per hour, of every appliance the…

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