Instructions / Assembly

Installing Your Heater
14
IMPORTANT: Inspect venting system prior to each heating
season.
Typical Methods of Safely Venting Your Heater
1. Any horizontal run of vent pipe must slope upward a minimum
of 1/4” per foot. Secure all joints of the vent with sheet metal
screws.
2. Where the vent passes through the ceiling or wall, a thimble is
required to keep the ceiling from catching fire. Use only a
thimble designed for use with Type “B” gas vent, certified by a
nationally recognized testing agency.
3. The vertical (straight up and down) part of the vent must end 2
feet above any part of the roof within 10 feet of the vent. This
is to make sure the “draw” of the vent is not obstructed in any
way.
4. A vent cap, approved by a nationally recognized testing
agency, must be installed on top of the vent to keep out rain
and snow and to prevent obstructions of the vent. The vent
cap will also prevent excessive downdraft that can cause
carbon monoxide to enter into the home. Do not use a
homemade vent cap. They are dangerous and can restrict the
draft of the vent.
5. Safe clearances are shown below. To prevent a fire, make
sure the heater is installed no closer than the distances shown
in the figures that apply to your type of venting.
6. If you are venting into a masonry chimney, it must be lined, in
good repair and must not serve a wood or coal burning
appliance. The flue must be at least as large in diameter as
the vent connector. The top of the chimney must be two (2)
feet higher above any part of the roof within ten (10) feet
horizontally of the chimney and must be three (3) feet higher
than the point where it passes through the roof line. If installed
in front of a fireplace, the pipe must pass through a sheet
metal cover on the fireplace that fits tightly.
FIGURE 14 Venting Into A Masonry
Chimney