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Table 7 – Gas Pipe Sizes
NATURAL GAS
Length of
Pipe - Ft.
Pipe Capacity - BTU Per Hour Input Includes Fittings
1/2” 3/4” 1” 1 1/4”
20 92,000 190,000 350,000 625,000
40 63,000 130,000 245,000 445,000
60 50,000 105,000 195,000 365,000
PROPANE GAS
Length of
Pipe - Ft.
Pipe Capacity - BTU Per Hour Input Includes Fittings
Copper Tubing* Iron Pipe
5/8” 3/4” 1/2” 3/4”
20 131,000 216,000 189,000 393,000
40 90,000 145,000 129,000 267,000
60 72,000 121,000 103,000 217,000
* Outside diameter
GAS SUPPLY PIPING
Figure 19 - Gas Piping