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22
OUTSIDE COMBUSTION AIR PRECAUTIONS & RECOMMENDATIONS
NOTE: The use of outside air for combustion is optional unless required by building codes. It is only necessary
to supply outside combustion air to one side of the fireplace. Use the model AK4 combustion air kit.
STEP 1: SECURE OUTSIDE AIR STARTING COLLAR TO LEFT SIDE OF
STEP 1: SECURE OUTSIDE AIR STARTING COLLAR TO LEFT SIDE OF
FIREPLACE WITH FOUR SHEET METAL SCREWS PROVIDED.
FIREPLACE WITH FOUR SHEET METAL SCREWS PROVIDED.
NOTE: THE STARTING COLLAR EXTENDS THROUGH THE OUTER
NOTE: THE STARTING COLLAR EXTENDS THROUGH THE OUTER
FIREPLACE JACKET AND WILL SEAL AGAINST THE FIREBOX WALL
FIREPLACE JACKET AND WILL SEAL AGAINST THE FIREBOX WALL
WHEN SECURED AS INDICATED.
WHEN SECURED AS INDICATED.
LONGER LENGTH OF THE
LONGER LENGTH OF THE
TUBE TO OUTSIDE.
TUBE TO OUTSIDE.
STEP 2: SECURE OUTSIDE DUCT TO STARTING
STEP 2: SECURE OUTSIDE DUCT TO STARTING
COLLAR WITH DUCT CLAMP
COLLAR WITH DUCT CLAMP
OR
OR
SCREWS.
SCREWS.
SECURING OUTSIDE AIR STARTING COLLAR TO FIREPLACE
SECURING OUTSIDE AIR STARTING COLLAR TO FIREPLACE
INSERT SHORTEST SIDE
INSERT SHORTEST SIDE
OF THE TUBE THROUGH
OF THE TUBE THROUGH
THE FIREPLACE OUTER
THE FIREPLACE OUTER
WRAP TO PROPERLY
WRAP TO PROPERLY
SEAL AGAINST FIREBOX
SEAL AGAINST FIREBOX
WALL AND GASKET.
WALL AND GASKET.
INSULATION RING
INSULATION RING
INSTALLATION OF THE MODEL 403
INSTALLATION OF THE MODEL 403
DUCT CONNECTOR
DUCT CONNECTOR
1. Push the insulation back approximatly 2"
1. Push the insulation back approximatly 2"
from the end of each duct .
from the end of each duct .
2. Slip each duct over the duct connector until
2. Slip each duct over the duct connector until
an equal length of the connector extends into
an equal length of the connector extends into
each duct.
each duct.
3. Place a duct clamp over the end of each duct
3. Place a duct clamp over the end of each duct
and tighten it down snuggly.
and tighten it down snuggly.
4. Push the insulation back into place and over
4. Push the insulation back into place and over
the duct clamp.
the duct clamp.
DUCT CONNECTOR
DUCT CONNECTOR
DUCT CLAMP
DUCT CLAMP
DUCT
DUCT
INSULATION
INSULATION
2" APP.
2" APP.
COMBUSTION AIR ASSEMBLY
COMBUSTION AIR ASSEMBLY
FOR MODEL NO. AK4
FOR MODEL NO. AK4
SCREWS
SCREWS
5" DIA. HOLE
5" DIA. HOLE
FOR AK4
FOR AK4
NAIL
NAIL
HOLES
HOLES
FIGURE 24
FIGURE 25
FIGURE 26
53D9032. Rev 1 03/03