Heritage Vent Free Cast Iron Stove Installation Manual
31208-1-1112Page 8
Recommended Gas Pipe Diameter
Pipe Length Schedule 40 Pipe
Inside Diameter
Outside Diameter
Nat. L.P. Nat. L.P.
0-10 feet
0-3 meters
1/2”
12.7 mm
3/8”
9.5 mm
1/2”
12.7 mm
3/8”
9.5 mm
10-40 feet
4-12 meters
1/2”
12.7 mm
1/2”
12.7 mm
5/8”
15.9 mm
1/2”
12.7 mm
40-100 feet
13-30 meters
1/2”
12.7 mm
1/2”
12.7 mm
3/4”
19 mm
1/2”
12.7 mm
100-150 feet
31-46 meters
3/4”
19 mm
1/2”
12.7 mm
7/8”
22.2 mm
3/4”
19 mm
NOTICE:
NOTICE: Since some municipalities have additional local codes, it
contact your local authorized installer for installation or relocation.
be disconnected from piping at inlet of control valve and pipe
capped or plugged for pressure test. Never pressure test with
inlet. This should consist of a vertical length of pipe tee connected
and foreign particles may collect.
The use of the following gas connectors is recommended:
and Fittings
Than All-Metal Construction
appliance connector cannot exceed three feet in length.
GAS SUPPLY
Figure 1
to the appliance.
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
any pressure testing of the gas supply piping system at test
WARNING
result in a hazardous condition.
Natural gas will have a manifold pressure of approximately
minimum input at the pressure regulator outlet with the inlet pressure
for the purpose of input adjustment to a maximum of 10.5" w.c.
the inlet pressure to the pressure regulator from a minimum of 11.0"
NOTICE:
pressure test point, therefore it is not necessary to provide a 1/8"
test point up stream of the control.
A test gauge connection is located downstream of the gas appliance
pressure regulator for measuring gas pressure. The connection is
a 1/8 inch (3 mm) N.P.T. plugged tapping.