Monessen Hearth 36CDVXTRN User Manual

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CDVX Series Direct Vent Gas Fireplace
20012253
Top of Unit to Ceiling ............................... 36” (914 mm)
Front of Unit to Combustibles .................. 36” (914 mm)
Appliance
 
Top .......................................................... 0” (0 mm)
 
Bottom ..................................................... 0” (0 mm)
 
Side ......................................................... 0” (0 mm)
 
Back ........................................................ 0” (0 mm)
Venting
Concentric sections of DV Vent
 
Top, bottom & sides .............................. 1” (25 mm)
Flex Vent................................................... 7/8” (22 mm)
NOTE: Hood must be permanently installed with 
three (3) sheet metal screws supplied in fireplace. 
(Refer to hood installation in this manual.)
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 
Figs. 4a and 4b, and the following Mantel Charts.
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.
Clearance to Combustibles
CFM170
J
F
G
H
I
Mantel
Leg
CFM164a
Mantel Leg Chart
06/22/01   sta
Black 
Surround 
Face
CFM170
DV Builder Front 
View
O
N
M
L
K
Side of 
Combustion Chamber
CFM164a
 
 
Mantel 
 
Mantel Leg FromSide
  Ref. 
Leg Depth 
Ref. 
of Comb. Opening
 
10”   (254 mm) 
11¹⁄₂”   (292 mm)
 
8”   (203 mm) 
9¹⁄₂”  
(241 mm)
 
6”   (152 mm) 
7¹⁄₂”  
(191 mm)
 
4”   (101 mm) 
5¹⁄₂”  
(140 mm)
 
2”   (51 mm) 
3¹⁄₂”  
(89 mm)
Fig. 4b  Combustible mantel leg minimum installation.
CFM146
A
B
C
D
E
V
W
X
Y
Z
Fireplace
CFM146
DV Mantel Chart
7/5/01   sta
Hood
Top of Combustion 
Chamber
Mantel Chart
   
Mantel Shelf or 
 
Mantel from Top of 
 Ref.  Breast Plate Depth  Ref.  Combustion Chamber
  V 
10”   (254 mm) 
17”   (432 mm)
  W 
8”   (203 mm) 
15”   (381 mm)
  X 
6”   (152 mm) 
13”   (330 mm)
  Y 
4”   (101 mm) 
11”   (279 mm)
  Z 
2”   (51 mm) 
9”   (229 mm) 
Fig. 4a  Combustible mantel minimum installation.
Standoff
Finish Wall
Noncombustible 
Material
A) Flat on wall  
B) Cross corner 
C)  **Island
D) Room divider 
E) Flat on wall corner 
F)  Chase installation
Y) Refer to “Clearance to Combustibles” Section
NOTE: (Fig. 3) 
** Island (C) and Room Divider (D) installation is possible as 
long as the horizontal portion of the vent system (X) does not 
exceed 20’ (6 m) with a minimum vertical of 4’ (122 cm).  See 
details in Venting Section.
Locating Your Fireplace
Y
E
A
B
C
D
F
Y
B
X
LU584-R
Locating unit
2/23/01   sta
X
LU584-R
Fig. 3  Locate gas fireplace.
3/4” (19 mm) Scribe 
Moulding for use 
with MHSC Cabinets
3/4” (19 mm) Scribe 
Moulding for use with 
MHSC Cabinets