23
GAS PIPING
TABLE 8 - GAS SUPPLY PIPE LENGTHS (IN FEET)
Maximum Equivalent Pipe Length - Natural Gas Only
Input rate
20 70 200 200 200
10 40 150 200 200
- 30 100 200 200
- 30 90 200 200
- 20 60 200 200
- 10 50 200 200
- 10 40 150 200
- - 30 100 200
- - 20 100 200
Fitting Type*
Tee
Gas Meter Size – Natural Gases Only
Supply Gas Regulator
GAS PIPING AND SEDIMENT TRAP INSTALLATION
FIGURE 21.
GAS LINE LEAK TESTING
Fire and Explosion Hazard
Leak test before placing the water
heater in operation.
Disconnect gas piping and main gas
shutoff valve before leak testing.
Install sediment trap in accordance
with NFPA 54.
Use joint compound or Teflon tape
compatible with propane gas.
PURGING