Trueheat TH36 - Optional Outside Air Installation

WARNING: NEVER USE MATCHES OR LIGHTERS TO CHECK FORGAS LEAKS. USESOAPY WATER ON ALL JOINTS AND
CHECK FOR BUBBLES.
CAUTION: ALWAYS FOLLOWTHE MANUFACTURERS INSTRUCTIONS PROVIDEDWITHTHE GAS APPLIANCE ACCES
SORY. DO NOT MODIFY THE GAS APPLIANCE IN ANY MANNER.
CAUTION: DO NOT USE A GAS APPLIANCE IN A MOBILE HOME.
CAUTION: WHEN USING YOUR DECORATIVE GAS APPLIANCE, THE FIREPLACE DAMPER MUST BE SET IN THE FULLY
OPEN POSITION.
OPTIONAL OUTSIDE AIR
AllTrueheat® fireplaces are equipped to accept outside combus
tion air if desired. By using outside combustion air you will increase
the efficiency of the fireplace by reducing the amount of room air
that will be used for combustion. Therefore, it is recommended that
the outside air system be used whenever practical. The outside air
system consists of one house vent, one section of flexhose, two
plastic ties, and one starting collar.
The outside air flexhose should be Installed to bring outside air
from the exterior of the structure to the fireplace. The house vent
should be installed on the exterior of the structure and located so
that the vent will not be blocked by snow, leaves or other debris.
The house vent should never be installed to take air from an attic
space, garage, or any other area that may contain combustible
fumes.
See Fig. 11 and 12 for installation of outside air duct. The flex air
duct may be installed in any direction and has no minimum or max
imum length requirements.
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FIG. 11
OUTSIDE COMBUSTION AIR HOOKUP
FIG. 12
OUTSIDE COMBUSTION
AIR INSTALLATION METHODS
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Flex Duct can be installed In any direction.
Installation of Outside Air for All Units
1.) Locate the nearest outside air source and cut a 5" diameter hole for the house vent. It must extend completely
thru an exterior wall or ceiling to obtain air from outside the home or from within the attic space.
Remove outside air cover from firebox and install outside air starter on side of unit using four screws provided.
Attach 4" diameter UL Class 1 flexible air duct securely onto air starter collar with plastic tie provided and run duct
through 5" exterior opening.
Pull flex through 5" opening and attach to outside house vent with plastic tie provided. Mount house vent flush
with outside wall or mount to top of joists in attic space.
To regulate the amount of combustion air into the unit the damper may be adjusted by regulating the damper handle
In an up (open) and down (closed) motion. See your Trueheat® Owners Manual for the complete explanation of the
operation of the outside air.
For Mobile Home installations follow the same methods of Installation as previously described using the black
flexduct and accessories. All holes should be cut a minimum of 6Vi inches diameter. See special considerations
for Mobile Home installations.
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