Installation
Continued
NOTICE: Manual control heaters maybeusedasaventedproduct. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 12.
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note: If using a mantel proceed to If Using Mantel. If not using a mantel, follow these instructions. You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2" thick. With sheet metal, you must have non- combustible material behind it. Noncombustible material must extend at least 8" up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" Models Only). See Figure 5 for minimum clearances.
If Using Mantel
You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2" thick. With sheet metal, you must have non- combustible material behind it. Noncombustible material must extend at least 8" up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" Models Only). Even if noncombustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See Figure 5 and Figures 6 and 7, page 11, for minimum clearances.
IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 12.
Noncombustible |
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Material | Requirements for | |||
Distance (A) | Safe Installation | |||
12" or more | Noncombustible mate- | |||
| rial OK. | |||
Between 8" and 12" | 24" or 30" Models: | |||
| Install fireplace hood | |||
| accessory (GA6050, | |||
| GA6052 or GA6053 see | |||
| Accessories, page 33). | |||
| 18" Model: Noncombus- | |||
| tible material OK. | |||
Less than 8" | Noncombustible mate- | |||
| rial must be extended to | |||
| at least 8". See Between | |||
| 8" and 12", above. If you | |||
| cannot extend material, | |||
| you must operate heater | |||
| with flue damper open. | |||
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Heat Resistant |
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Material |
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Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Mantel Clearances
In addition to meeting noncombustible material clearances, you must also meet required clearances between fireplace opening and mantel shelf. If you do not meet the clearances listed below, you will need a hood.
Determining Minimum Mantel Clearance If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 6, page 11).
Determining Minimum Mantel Clearance
When Using a Hood
If minimum clearances in Figure 6, page 11, are not met, you must have a hood. When using a hood there are still certain minimum mantel clearances required. Follow minimum clearances shown in Figure 7, page 11, when using hood.
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