INSTALLING | Minimum Non Combustible Material Clearances |
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If Using Mantel |
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Continued |
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You must have non combustible material(s) above the fireplace opening. Non | ||||||||||||||||
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| combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch | |||||||||||||||
| thick. With sheet metal, you must have non combustible material behind it. Non | |||||||||||||||
| combustible material must extend at least 8 inches up (for all models). If non | |||||||||||||||
| combustible material is less than 12", you must install the fireplace hood accessory | |||||||||||||||
| (24" and 30" models only). Even if non combustible material is more than 12", you | |||||||||||||||
| may need the hood accessory to deflect heat away from your mantel shelf. See | |||||||||||||||
| chart below and Figures 6 and 7 for minimum clearances. |
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| 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 13. |
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| Requirements for |
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| Material Distance (A) |
| Safe Installation |
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| 12" or more |
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| Non combustible material OK. |
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| Between 8" and 12" |
| 24" or 30" Models: Install fireplace hood |
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| acessory (GA6050 or GA6052, see |
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| Accessories, page 33). |
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| 18" Model: Non combustible material OK. |
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| Less than 8" |
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| Non combustible material must be |
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| extended to at least 8". See Between 8" |
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| and 12", above. If you cannot extend |
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| material, you must operate heater with |
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| flue damper open. |
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| Mantel Clearances |
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| If you meet minimum clearance between mantel shelf and top of fireplace opening, | |||||||||||||||
| a hood is not required (see Figure 6). | Mantel Shelf |
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| 10" |
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| Underside of | ||||
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| 8" |
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| Mantel Shelf | ||||
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| 6" |
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| 2 1/2" |
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| All minimum | |||
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| distances are | ||
| Minimum Non- |
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| in inches | ||||
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| Combustible |
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| Log Set | ||||||
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| Material |
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| 12" |
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| 20" |
| 241/2" | 271/2" | 30" |
| 24"/30" Models | |||||
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| 8" |
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| 14" |
| 163/4" | 181/2" | 20" |
| 18" Model | ||
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| Top of Fireplace | |||
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| Opening | |||
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| Minimum Non- | Distances to |
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| Combustible |
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| Underside of |
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| Material Height | Mantel |
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Figure 6 - Minimum Mantel Clearances Without Using Hood
If above minimum clearances are not met, you must have a hood. Follow | |
minimum clearances shown in Figure 7 when using hood. | Continued 11 |
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