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CGTH INSTALLATION, OPERATION AND SERVICE MANUAL
14
4.5 General Venting Guidelines
Regardless of the venting arrangement that will be
connected to the heater, the following general guide-
lines for venting must be followed:
1. The 3" (80 mm) flue pipe must be centered inside
the 5" (125 mm) air supply pipe.
2. The total length of vent pipe (horizontal and verti-
cal runs combined, plus the length of the exterior
termination) must not exceed 10' (3048 mm), and
must not be less than 2' 6" (762 mm). A maximum
of two elbows are allowed with natural gas, one
elbow with propane.
3. The vent terminal, mounted outside of the building,
should not be located above walkways. Conden-
sate produced during operation of the heater
could drip onto the walkway forming ice during
cold weather.
4. Be sure that the venting installation is in accor-
dance with all applicable local codes and recom-
mendations of the local gas company.
5. DO NOT connect this heater to a separate chim-
ney and DO NOT common vent with any other fuel
burning appliance.
IMPORTANT: For standard flue, seal all vent pipe
connections with high temperature silicone seal-
ant. Where required, drill holes and secure each
connection with three sheetmetal screws.
NOTE: Failure to seal all flue connections 3" (80
mm) will result in erratic heater operation.