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61D0087 9
A
7
1
/2"
6
1
/2"
6
1
/2"
34
3
/8"
1
/2" or
5
/8"
Drywall Spacers
21"
10"
13
1
/2"
21
1
/2"
2
5
/8"
17
1
/4"
7"
9
7
/8"
Gas
9
5
/8"
Air Kit
1
/2" or
5
/8"
Drywall
Spacers
13
3
/4"
Electrical
21
3
/4"
Framing
Dimension
40
3
/4"
Framing
Dimension
C
Framing Dimension
B
TOP VIEW
FRONT VIEW SIDE VIEW
BWBC400MHB
BWBC500MHB
Outside
Connector
Center
Line
FIREPLACE DIMENSIONS
Figure 7 - Fireplace Dimensions
400 500
Units Units
A 24
3
/4" 30
3
/4"
B 36" 42"
C 40
1
/2" 46
1
/2"
1. Place fireplace in the desired location. Securely support and level fireplace. Check face of the fireplace with a carpenterʼs
level. If fireplace is not plumb, correct it by placing shims under the edges of fireplace.
2. Block in the fireplace to prevent any shifting of firebox. Secure fireplace with naildown straps located on each side of
the fireplace. See Figure 1, Page 5.Do not enclose the fireplace until the combustion air duct and chimney pipes are
installed.
3. Connect fireplace fan assembly to homeʼs electrical system.
4. Trim and enclose fireplace.
5. Install hearth extension or equivalent.
See pages 10 and 11.
Note: Some local codes may require electrically grounding the fireplace and chimney.
FIREPLACE INSTALLATION