UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
Continued
Determining Minimum Mantel Clearance When Using a Hood
If above minimum clearances are not met, you must have a hood. Follow minimum clearances shown in Figure 8 when using hood.
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Combustible |
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| Top of Fireplace | |
Hood | Opening | |
Distances to | ||
(GA6050, GA6052) | ||
Underside of | ||
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| Mantel |
Figure 8 - Minimum Mantel Clearances When Using Hood
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 23). This will insure vented operation (see Figure 11). 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.
Area of Various Standard Round Flues
Diameter (ins.) | Area (sq. ins.) |
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5" | 20 sq. inches |
6" | 29 sq. inches |
7" | 39 sq. inches |
8" | 51 sq. inches |
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Chimney | Minimum Permanent |
Height (ft.) | Flue Opening (sq. ins.) |
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6' to 15' | 39 sq. inches |
15' to 30' | 29 sq. inches |
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If your installation does not meet the above minimum clearances, you must:
•operate the logs only with the flue damper open, OR
•raise the mantel to an acceptable height,
OR
•remove the mantel.
Floor Clearances
A.If installing appliance on the floor level, you must maintain the minimum dis- tance of 14" to combustibles (see Fig- ure 9).
Hearth
Combustible Material
5"
Min.
Figure 10 - Minimum Fireplace Clearances Above Combustible Flooring
INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION
Damper |
Clamp |
Damper |
Damper Damper Clamp
14"
Combustible Material
Note: When used as a vented heater, appli- ance must be installed only in a
Masonry Fireplace
Min.
Material
Figure 9 - Minimum Fireplace Clearances If Installed at Floor Level
B.If combustible materials are less than 14" to the fireplace, you must install appliance at least 5" above the combus- tible flooring (see Figure 10).
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 clear- ance to combustibles requirements for
2.State or local codes do not permit vent- free operation.
3.You prefer vented operation.
Damper
Manufactured Fireplace
Figure 11 - Attaching Damper Clamp
Continued
8 | 103426 |
