The Chimney Sweep Online Fireplace, Woodstove, Gas Stove and Barbecue Shop
Gas Pipe Sizing for Iron Pipe at standard gas pressure
This chart will give you the size of the gas supply pipe needed, based upon the BTU/HR usage of the gas
appliance(s) and the length of pipe used.
We're plumbing the gas supply for a 60,000btu (60k) furnace and we have to go 40 feet.
Read across the top of the chart until you come to the 40 ft. column
Read down the 40 ft. column until you come to the first number larger than 60k
The Pipe size column tells you 1/2 inch pipe will make it (See 65k in red on the chart)
Length Of Pipe In Feet
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