AK4, CAK4, And AK4E
OutsidE COmbustiOn Air Kits
instAllAtiOn instruCtiOns
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SEAL GAPS WITH
NONCOMBUSTIBLE
HI-TEMP SEALANT
OR DUCT TAPE
SECURE AND SEAL DUCT
TO COLLARS WITH HI-TEMP
DUCT TAPE (BOTH ENDS)
REMOVE OIL AT ENDS OF DUCT
TO INSURE PROPER ADHESION
OF DUCT TAPE TO BE APPLIED
FLEX DUCT EXTENDS
UP TO 3 FEET
OUTSIDE AIR
VENT TERMINATION
AIR VENT LOCATION
MUST ALLOW FOR
BUSHES, SNOW, AND
OTHER POSSIBLE
OBSTRUCTIONS
4
1
/
2
" x 4
1
/
2
"
FRAMED OPENING
SECURE AND SEAL DUCT TO COLLARS WITH HI-TEMP
DUCT TAPE (BOTH ENDS). REMOVE OIL AT ENDS OF
DUCT TO INSURE PROPER ADHESION OF DUCT TAPE
TO BE APPLIED.
BEND TABS OUT
BEFORE INSTALLING
FLEX DUCT EXTENDS
UP TO 3 FT.
OUTSIDE AIR
VENT TERMINATION
REMOVE AIR
INLET COVER
(2 SCREWS)
IR VENT LOCATION
MUST ALLOW FOR
BUSHES, SNOW AND
OTHER POSSIBLE
OBSTRUCTIONS
CUT AND REMOVE
ANY BLOCKING
INSULATION
Figure 1
Figure 3
Figure 2
Figure 4
CAUTION: AIR INLET DUCTS ARE NOT TO
TERMINATE IN ATTIC SPACE.
The maximum height for the air vent can not exceed
3 feet below the ue gas outlet of the termination.
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