Noncombustible Material Requirements with No Mantel Installed
(A) Noncombustible Material Measurement | Requirements for Safe Installation |
|
|
12" or more | Adjustable canopy not required. |
|
|
8" minimum to 12" | Install adjustable canopy, P/N 053752 |
| (Figure 3 ). |
|
|
Less than 8" | Extend noncombustible material to at least |
| 8" and install adjustable canopy (Figure 3 ). |
| or |
| Extend noncombustible material to a height |
| of at least 12". |
|
|
Table 2
Noncombustible Material Heights and Mantel Location
| Requirements for Safe Installation |
| with Wood Mantel, Shelf or |
Noncombustible Material Measurement | Other Combustible Projection |
|
|
12" or more | Adjustable canopy not required. Observe pro- |
| files shown in Figure 4. |
|
|
8" minimum to 12" | Install adjustable canopy and observe pro- |
| files shown in Figure 5. |
| or |
| Extend heat resistant material to at least 12" |
| and observe profiles shown in Figure 4. |
|
|
8" or More of
Noncombustible
Material
Adjustable
Canopy
Heater in Fireplace
or Firebox
Figure 3
Step 4. Wood mantel, shelf or combustible projection requirements: To install a wood mantel, shelf or other combustible projection directly above the fireplace (firebox), refer to Table 3 and to Figures 4 and 5 for installation profiles.
If your mantel profile is unsafe, you may either:
•Raise the mantel to an acceptable height, or
•Remove the mantel.
Example: The bottom of the mantel may project from the wall a maximum of
Table 3
Follow these instructions carefully to ensure safe installation. Failure to follow these require- ments may create a fire hazard.
Step 1. Sidewall Clearances: The sides of the fireplace opening must be at least 16" from any combustible side wall (Figure 1 ).
42"
Min.
16"
Min.
Figure 1
Step 2. Ceiling Clearance: The ceiling must be at least 42" from the top of the heater opening (Figure 1 ).
Step 3. Noncombustible materials (minimum requirements): To install the room heater with- out wood mantels, shelves or other combus- tible projections directly above the opening of the fireplace (firebox) refer to Figure 2 and Table 2. Note that at least 8" of noncombustible material must be installed above the heaters described in this manual.
Noncombustible materials, such as slate and marble, must be at least 1/2" thick.
Noncombustible
Material
A
Heater in Fireplace
or Firebox
Figure 2
10" Ceiling 8"
6"
42"
28"
Heat Resistant
Material
12"
Figure 4
NOTE: DIAGRAMS & ILLUSTRATION NOT TO SCALE.
5