INSTALLATION
Continued
Minimum Clearances For Side
Combustible Material, Side Wall,
and Ceiling
A.Clearances from the side of the fire- place cabinet to any combustible ma- terial and wall should follow diagram in Figure 5.
Example: The face of a mantel, book- shelf, etc. is made of combustible ma- terial and protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the fireplace opening (see Figure 5).
Note: When installing your gas logs into a manufactured firebox, follow firebox manufacturer’s instructions for minimum clearances to combustible materials.
B.Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches.
Minimum Noncombustible Material Clearances
If Not Using Mantel
Note: If using a mantel, proceed to If Using Mantel. If not using a mantel, follow the information below.
You must have noncombustible material(s) above the fireplace opening. Noncombus- tible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible 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 6 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 10.
If Using Mantel
You must have noncombustible material(s) above the fireplace opening. Noncombus- tible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible mate- rial must extend at least 8 inches 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 6 and Figures 7 and 8 on page 9 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 10.
Example |
* |
*Minimum 16 inches from Side Wall
Figure 5 - Minimum Clearance for Com- bustible to Wall
NOTICE: Manual control heaters may be used as a vented product. 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 10.
Noncombustible | Requirements for |
Material Distance (A) | Safe Installation |
|
|
12" or more | Noncombustible material okay. |
Between 8" and 12" | 24" or 30" Models: Install fireplace hood acces- |
| sory (GA6050, GA6052, or GA6053 see Accesso- |
| ries, page 27). |
| 18" Model: Noncombustible material okay. |
Less than 8" | Noncombustible material 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. |
|
|
Heat Resistant 
Material
(A)
Figure 6 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace
For more information, visit www.desatech.com | 8 | 107123 |
