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INSTALLING
Continued
101309
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 and constructed of non combustible
material.
If your heater is a manually controlled model, you may use this heater as a vented
product. There are three reasons for operating your heater in the vented mode.
1. The fireplace does not meet the clearance to combustibles 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 permanently open chimney flue
damper. You must install the damper clamp accessory (to order, see Accessories, page
33). This will insure vented operation (see Figure 10). The damper clamp will keep
damper open. Installation instructions are included with clamp accessory.
See chart below for minimum permanent flue opening you must provide. Attach
damper clamp so the minimum permanent flue opening will be maintained at all times.
Chimney
Height (ft.)
6' to 15'
15' to 30'
Area of Various Standard Round Flues
Diameter (ins.)
Damper
Clamp
Masonry Fireplace
Figure 10 - Attaching Damper Clamp
Minimum Permanent
Flue Opening (sq. ins.)
39 sq. inches
29 sq. inches
Area (sq. ins.)
5"
20 sq. inches
6"
29 sq. inches
7"
39 sq. inches
8"
51 sq. inches
Damper
Damper
Clamp
Damper
Damper
Manufactured Fireplace
13
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