IMPORTANT: For natural gas, check gas line
pressure before connecting heater to gas line.
Gas line pressure must be no greater than
10.5" of water. If gas line pressure is higher,
heater regulator damage could occur.
For propane/LP gas, the installer must supply
an external regulator. The external regulator
will reduce incoming gas pressure. You must
reduce incoming gas pressure to between 11"
and 14" of water. If you do not reduce incoming
gas pressure, heater regulator damage could
occur. Install the external regulator with the
vent pointing down as shown in Figure 13.
Pointing the vent down protects it from freezing
rain or sleet.
* An CSA design-certifi ed equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
the optional CSA design-certifi ed equipment
shutoff valve from your dealer.
12
Figure 13 - External Regulator With Vent
Pointing Down
Figure 14 - Gas Connection
INSTALLATION
Continued
WARNING: This appliance requi-
res a 3/8” NPT (National Pipe Thread)
inlet connection to the pressure
regulator.
WARNING: A qualifi ed service
person must connect heater to gas
supply. Follow all local codes.
WARNING: For natural gas, never
connect heater to private (non-utility)
gas wells. This gas is commonly
known as wellhead gas.
CAUTION: For propane/LP gas,
never connect heater directly to
the propane/LP supply. This heater
requires an external regulator (not
supplied). Install the external regulator
between the heater and propane/LP
supply.
CAUTION: Use only new, black
iron or steel pipe. Internally-tinned
copper tubing may be used in certain
areas. Check your local codes. Use
pipe of large enough diameter to allow
proper gas volume to heater. If pipe is
too small, undue loss of volume will
occur.
7"
5/8"
