Noncombustible Material Requirements with No Mantel Installed
(A) Noncombustible Material Measurement | Requirements for Safe Installation |
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12" or more | Adjustable canopy not required. |
|
|
8" minimum to 12" | Install adjustable canopy, P/N 053751 or |
| P/N 053752 (Figure 3 ). |
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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". |
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Table 2 |
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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. |
|
|
Table 3 |
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Example: The bottom of the mantel may project from the wall a maximum of
10" Ceiling 8"
6"
42"
28"
Heat Resistant
Material
12"
Top Of Firebox Opening
(Both Sides Of Opening)
Figure 4
Example: The bottom of the mantel may project from the wall a maximum of
12" |
| |
10" |
| |
8" | 26" | |
6" | ||
|
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
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.
|
Heat Resistant
Material8"
Min.
Hood (Canopy)
Top Of Firebox Opening
(Both Sides Of Opening)
Figure 5
Step 5. Floor clearance: If combustible floor- ing materials, such as carpeting or asphalt tile, are to be located within 14" of the fireplace or nirebox opening, the room heater base must be at least 5" above the combustible flooring ma- terial (Figure 6 ).
Combustible
Material
Combustible
Material
5" Min.
Figure 6
NOTE: DIAGRAMS & ILLUSTRATION NOT TO SCALE.
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