16
Vent-Free Gas Log Heater User Manual
Installation (cont.)
CONNECTING TO A GAS SUPPLY
The installer must supply an external regulator for liquid propane. For natural gas, the gas supplier supplies
the external regulator. The external regulator reduces incoming gas pressure, and the pressure must be
reduced to between 11" and 14" of water column for propane and between
6
" and 10.5" of water column
for natural gas. Heater regulator damage could occur if the pressure of the incoming gas is not reduced.
Install the external regulator with the vent pointing down as shown in Fig. 10. The purpose of pointing the
vent down is to protect it from freezing rain or sleet.
*The equipment
shutoff valve
can be purchased from your local home center store.
A qualified service technician must connect heater to gas supply. Follow all local codes.
WARNING
Never connect the heater directly to the gas supply. This heater requires an external
regulator (not supplied). The external regulator between the gas supply and heater
must be installed. Your gas supplier provides the external regulator for natural gas.
CAUTION
Never connect the heater to private/non-utility gas wells (commonly known as
wellhead gas).
WARNING
Equipment Shutoff Valve With
1/8" NPT Tap*
Approved
Flexible
Gas Line
or 1/2"
Black Pipe
3" Minimum
Sediment Trap
Propane
From
External
Regulator (11"
W.C.** to 14" W.C.
Pressure)
Natural
From Gas Meter
Fig. 11—Gas Connection
External
Regulator
with Vent
Pointing
Down
Propane
Supply
Tank
Fig. 10—Regulator Conversion
IMPORTANT:
Install equipment shutoff valve in an accessible location. The equipment shutoff valve is
for turning on or shutting off the gas to the heater. Apply pipe joint sealant lightly to the male threads.
This prevents excess sealant from going into the pipe. The heater valves may become clogged if excess
sealant gets into the pipes.
Use only new black iron or steel pipe. Internally tinned copper tubing may be used
in certain areas, depending on your local codes. Use pipe of 1/2" diameter or greater
to allow proper volume gas to heater. If the pipe is too small, loss of pressure will occur. Installation must
include an equipment shutoff valve, union, and plugged 1/8" NPT tap. The NPT tap must be located within
reach for the test gauge hook up and be upstream from heater (see Fig. 11).
CAUTION
Pipe Nipple Cap Tee Joint
(
6
" to 10.5" W.C.
Pressure)
