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UV36 Vent-Free Firebox
20007446
FP1060
AKMST installation
7/6/00 djt
Ceiling
Attic
Duct
Duct
Termination
40’ Max.
Duct Run
Soffit Termination
Exterior Wall
Rain Cap
Duct Termination
40’ Max. Duct Run
Duct
Exterior Wall Termination
FP1060
Fig. 7 Typical outside air installations.
KT143
AKU cover plate
9/5/00 djt
Cover Plate
KT143
Fig. 8 Remove outside air cover plate and discard, retain
screws.
4. At the termination end, install the duct termination.
This should be installed from the outside of the
home. Cut a hole in the desired location approxi-
mately 4¹⁄₂” (114mm) in diameter, caulk around the
hole, and slide the termination through the opening
from outside the home. The termination/rain cap
should be caulked around its perimeter to assure a
tight seal. The rain cap opening should be positioned
downward. (Fig. 10)
The Outside Air Kit is now installed and ready for use.
KT145
AKU reinstall
cover plate
9/6/00 djt
KT145
Fig. 9 Secure the inlet collar assembly.
FP1061
AKMST
rain cap
7/6/00 djt
Caulking
Duct Ter-
mination
Rain
Cap
Wall
FP1061
Fig. 10 Caulk and install duct termination/rain cap in place.
Operating Precautions and Instructions
Operation is automatic. A slight negative pressure inside
the house will open the barometric flapper valve.
Periodically inspect the duct termination for any block-
age. Correct if necessary.