11
Figure 7- Minimum fireplace
clearances if installed at floor level
Combustible Material
14” Min
Noncombustible Material
Figure 8 - Minimum fireplace
clearances above combustible flooring
Combustible Material
5” Min
Hearth
INSTALLING DAMPER CLAMP ACCESSORY
FOR VENTED OPERATION
NOTE:
When used as a vented heater, appliance must be
installed only in a solid-fuel burning fireplace with a working
flue constructed of noncombustible material. You may use
this heater as a vented product. There are three reasons for
operating your heater as a vented model:
1. The fireplace does not meet the clearance requirements for
vent-free operation.
2. State or local codes do not permit vent-free operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you must perma-
nently open chimney flue damper. You must install the damper
clamp accessory. This will insure vented operation (see Figure 9).
The damper clamp will keep damper open.
See chart below for the minimum permanent flue opening you
must provide. Attach damper clamp so the minimum permanent
opening will be maintained at all times.
Chimney
Height (ft.)
Minimum Permanent
Flue Opening (sq. in)
6’ to 15’
39 sq inches
15’ to 30’
29 sq inches
Area of Various Standard Round Flues
Diameter (in.)
Area (sq. in.)
5 in.
20 sq inches
6 in.
29 sq inches
7 in.
39 sq inches
8 in.
51 sq inches
Figure 9 - Attach Damper to Fireplace
Figure 6 - Minimum mantel
clearances when using hood
Log set
18”, 24” Models
Top of Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
Minimum Non-
Combustible Material
Hood
Distances to
Underside of Mantel
A l l m i n i m u m
distances are in
inches
Damper
Damper
Clamp
Damper
