Majestic B-Vent Series Installation & Operating Instructions Manual page 7

Natural vent gas fireplace
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FIREPLACE DIMENSIONS & FRAMING
G
Figure 3 -
400SBV, 500SBV Fireplace
Dimensions and Framing
For easier installation on 400SBV and 500SBV
units, place gas supply pipe 6" to 8" inside
unit. Measure from the center of the gas
knock-out hole located at the bottom of the
left side.
62D4037
Min. Rough 
Opening
Depth
G
21 "
(546 mm)
1/2" or 5/8" 
Drywall 
Spacers
(244 mm)
16 "
(426 mm)
7 "
(184 mm)
(56 mm)
Ref.
400SBV
A
40"
B
36"
C
24ZC\zn"
D
40Z\x"
Framing Dimensions
E
67M\,"
F
34"
G
48"
BBV, SBV Series Natural Vent Gas Fireplaces
21"
(533 mm)
D - Min. Rough Opening Width
Min. Rough
Opening 
Height
40 "
(1029 mm)
9 "
2
"
(1016 mm)
46"
(914 mm)
42"
(630 mm)
624037
30ZC\zn"
400BBV dims
(1029 mm)
46Z\x"
(1724 mm)
73M\,"
(864 mm)
37"
(1219 mm)
52Z\v"
C
1/2" or 5/8"
Drywall 
Spacers
21 "
(546 mm)
(152 mm)
B
A
500SBV
(1168 mm)
(1067 mm)
(783 mm)
(1181 mm)
(1876 mm)
(940 mm)
(1327 mm)
4" 
B-Vent
13
"
(341 mm)
6 "
(165 mm)
40"
(1016 mm)
34"
(864 mm)
6"
7

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