Specifications

DFS Series Vent Free Fireplace
71D0532 33

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 replace. Use the
model AK4 combustion air kit.

1. Remove the cover plate from the 4" outlet opening loca-
tion on the left or right outside of the replace.
2. Place the insulation ring between the AK-4 starting collar
and replace wall.
3. Place the starting collar (4") into the hole on the side
of replace. Fasten it in place with the four sheet metal
screws provided. Figures 37 and 38
FP1900
OA start collar
8/08
Left Side of
Fireplace
Insulation Ring
Sheet Metal
Screws
AK-4 Starting
Collar
Shorter End
of Air Starting
Collar
FP1900



FP1901
secure outside duct
8/08
Air Starting
Collar
Duct
Screws
Left Side of
Fireplace
FP1901


FP1904
AK4 install
8/08
6” Diameter
Hole
Screw
Duct
Extending
3” Min.
AK-4 Inlet
Air Vent
Nail
Holes
Screws
FP1904




      

        




 The air starting collar extends through the replace
outer wrap. When the air starting collar is securely
attached, it will form a seal against the replace wall.
4. Attach outside duct to starting collar with duct clamp or
screws. Figure 39
5. Cut a 6-inch diameter opening for model AK-4 in the
outside wall covering where the outside vent is to be
located. Figure 39
6. Select and cut a piece of duct long enough to attach to
the replace and stick out at least 3" beyond the face of
the wall to which the AK-4 inlet air vent will be attached.
Figure 38