Table of Contents
Advertisement
MD34-DV-2 Homefire
B. Multi-Elbow Installations
For more diffiicult installation situations, the MD34-DV-2 Rear Vent may
be installed with 2 - 90° elbows and up to 15' of horizontal run. If using
this installation option, you must adhere to the following guidelines:
n
the first 90° elbow must be placed directly on the flue collar
n
you must have a minimum vertical lift of 50" (measured from the
hearth)
n
your vent run must fall within the limits set by Figure 19
Before you install any venting, you must determine whether the venting
run will be acceptable. Unacceptable venting can affect the fireplace's
combustion.
The Venting Graph
Measure the vertical height from the fireplace hearth to the centre of the
termination and the horizontal run from the from the fireplace flue collar to
the wall flange of the termination. Plot on the Venting Graph (Fig. 19)
with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
f i r e - p a r t s . c o m
installation is acceptable.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 84" and
the horizontal run to the wall flange of the vent
termination is 36", this would be an acceptable
installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 90" and
the horizontal run to the wall flange of the vent
termination is 126", this would be an acceptable
installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fire-
place is 78" and the horizontal run to the wall flange
of the vent termination is 108", this would NOT be
an acceptable installation.
108
96
84
72
60
48
36
24
12
0
12 24 36 48 60 72 84 96 108
0
Hearth
Horizontal Run (in.)
Figure 19. MD34-DV-2 Rear Vent Venting Graph
Page 10
Installation
MD34-DV-2 Rear Vent versions are supplied with an EXT-18 (female/
female) section. In addition, the following venting components are
available for Rear Vent installations:
NOTES:
Figure 20. Multi-elbow installation. Distance 'H' must be a minumum
120
132
144 156 168 180
Rear Vent
Installation Of Rear Vent DV
A - Termination
B - Stucco Kits
D - Flex sections
E - Solid sections
F - 90 degree elbow
All dimension lengths for vertical or horizontal runs
are measured from center of the vent pipe.
Venting runs must fall within the limits set by the
venting graph (see Figure 19).
8"
min 8"
max 18"
of 50". The vent run must comply with figure 19.
MTO-3 (3" length)
MTO-3F (3" length)
MSR (stucco frame)
BSR-4 (4" brick frame)
BSR-6 (6" brick frame)
MOSR (stucco can)
MFL-1 (12" section)
MFL-18 (18" section)
MFL-2 (24" section)
MFL-3 (36" section)
MFL-4 (48" section)
MEXT-1 (12" section)
MEXT-2 (24" section)
MEXT-3 (36" section)
MEXT-4 (48" section)
MEL-90M (m/m 90° elbow)
MEL-90F (f/f 90° elbow)
MEL-90FM (f/m 90° elbow)
EEL-45 (f/m 45° elbow)
L
H
Part No. XG0106B
Advertisement
Table of Contents
