6
Clearances
Mantel Clearances and Wall Details
PRE-INSTALLATION
PREPARATION
CLEARANCES
Minimum clearances to combustibles are: |
| |
• | Top of Spacers | 0" min. |
• | Back and Sides of Outer Surround | 0" min. |
• | Drywall to Sides of Front Face (Nailing Flanges) ... 0" min. | |
• | “B” Vent Surfaces | 1" min. |
• | Ceiling to Opening | 42" min. |
• | Floor | 0" min. |
• | Perpendicular Wall | See Figure 6 |
CAUTION: Do not block required air spaces with insulation or any other material. Do not obstruct effective opening of appliance with any type of facing material.
MANTEL CLEARANCES AND WALL DETAILS
A combustible mantle shelf maybe installed a maximum 12" (229mm) from the wall. Figures 5 and 6 show the minimum allowable distances from various combustible mantle components in relation to the fireplace opening.
12" | Combustible |
(229mm) | Materials |
Header
6" (152mm)
Back
2 x 4 Stud
Nailing
Flange
13"
8"Spacer
Left Side Surround
0" Clearance 
0"
Front Face | Drywall |
(Front View) | 3" (76mm) |
|
1 1/2" 
(38mm) Max.
Figure 3 - Minimum Clearances (Top View)
1" (25mm) Min.
Clearance to
"B" Vent’s Outer Pipe
Ceiling
Figure 5 - Mantel Clearances - Side View (Cross Section)
TOP VIEW
Outer Surround
Combustible
Material May
42" (1067mm) Min. Clearance from Opening to Ceiling
0" Clearance |
|
|
* | * | * |
DO NOT BLOCK
OR OBSTRUCT
OPENINGS
0" Clearance to Wood or Noncombustible Flooring
*Required Air Spaces are Indicated with
an "*". Do Not Pack with Insulation or Any Other Material
Be Used
1 1/2" (38mm) | SAFE | |
ZONE | ||
Max. | 3" (76mm) |
|
| Max. |
|
6" (152mm) 
Max.
9"
| Perpendicular |
12" | Wall |
Figure 6 - Side Clearances - Top View (Cross Section)
Figure 4 - Minimum Clearances (Front View)
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