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Clearance to Combustibles
Top of Unit to Ceiling ................................ 36" (914mm)
Appliance
Top ........................................................... 0" (0mm)
Bottom ..................................................... 0" (0mm)
Side ......................................................... 0" (0mm)
Back ......................................................... 0" (0mm)
Venting
Concentric sections of DV Vent
Top, bottom & sides ............................... 1" (25mm)
Mantels
The height that a combustible mantel is fitted above
the fireplace is dependent on the depth of the mantel.
This also applies to the distance between the mantel
leg (if fitted) and the fireplace.
For the correct mounting height and widths refer to
Figures 3a and 3b.
The fitting of a bay window trim kit does not effect the
distances and reference points referred to in the
diagram and chart.
Noncombustible mantels and legs may be installed
at any height and width around the appliance.
When using paint or lacquer to finish the mantel,
such paint or lacquer must be heat resistant to
prevent discoloration.
A
B
C
Bottom of Door Trim
Mantel Chart
Mantel Shelf
Ref. or Breast Plate Ref.
Depth
V
10" (254mm)
A
W
8" (203mm)
B
X
6" (152mm)
C
Y
4" (101mm)
D
Z
2" (50mm)
E
Fig. 3a Combustible mantel minimum installation.
10003358
V
W
X
Y
Z
D
E
Fireplace
Top Louvre
Assembly
Top of
Combustion
Chamber
Mantel from Top
of Combustion Chamber
36/39/43 BDVT
33BDVT
19" (483mm)
17" (432mm)
17" (432mm)
15" (381mm)
15" (381mm)
13" (330mm)
13" (330mm)
11" (279mm)
11" (279mm)
9" (229mm)
BDVT Series Direct Vent GaS Fireplace
Black
Surround
Face
Side of
Combustion Chamber
Ref.
Leg Depth
F
10" (254mm)
G
8" (203mm)
H
6" (152mm)
I
4" (101mm)
J
2" (50mm)
Fig. 3b Combustible mantel leg minimum installation.
A hearth is not mandatory but is recommended for
aesthetic purposes. We recommend a noncombustible
hearth which projects out 12" (305mm) or more from
the front of the fireplace.
Cold climate installation recommendation:
When installing this unit against a non-
CFM146
insulated exterior wall or chase, it is
mandatory that the outer walls be
insulated to conform to applicable
insulation codes.
Mantel
Leg
Mantel
Mantel Leg from Side
Ref.
of Comb. Opening
K
11¹⁄₂" (292mm)
L
9¹⁄₂" (241mm)
M
7¹⁄₂" (191mm)
N
5¹⁄₂" (140mm)
O
3¹⁄₂" (89mm)
Hearth
J
I
H
G
F
K
L
M
N
O
CFM170
5
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