Rear Vent, Wall Mounted Termination Graph; Standard Rear Vent, (No Elbows Or Offsets); Rear Vent, Wall Mounted Termination (Two Elbows) - Montigo H38DF Installation & Maintenance Manual

H*38DF Gas Fireplace
notes wall Mounted Terminations: Rear Vent
All dimension lengths for vertical or horizontal runs are measured
„
from centre of the vent pipe.
Venting runs must fall within the limits set by the venting graphs,
„
see Figure 14.
Fireplace must be converted to Rear Vent configuration prior to
„
running vent, see Figure 8 and 8a.
The Venting Graph
Measure the vertical height from the fireplace hearth to the centre of the
termination and the horizontal run from the fireplace flue collar to the wall
flange of the termination. Plot on the Venting Graph Figure 14 with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Example a: (acceptable Installation)
If the vertical dimension from the hearth is 120" and the horizontal
run to the wall flange of the vent termination is 138", this would be
an acceptable installation.
Example B: (Unacceptable Installation)
If the vertical dimension from the hearth is 48" and the horizontal
run to the wall flange of the vent termination is 96", this would nOT
be an acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 72" and
the horizontal run to the wall flange of the vent termination is 120",
this would nOT be an acceptable installation.
Acceptable vent run
within non-shaded area.
B
48"
28 3/4"
18"
Figure 14. Rear Vent Venting Graph for wall mounted terminations.
WARNING:
An inspection of the explosion relief flappers and door
MUST be made prior to lighting the fireplace. Faulty seal
on the door gasket and/or explosion ports will result in
products of combustion leaking into the living space and
may result in carbon monoxide poisoning.
Page 14
Installation
A
C
Unacceptable vent run
52"
within shaded area.
If your installation does not fall
within the venting graph parame-
ters, please contact a local Montigo
Dealer for Power Venting options.
nOTE:
18" MaX. horizontal
run with no vertical lift.
Hearth
Figure 14a. Straight run, Rear Vented, wall mounted termination for H*38DF*,
Figure 14.
Flex or Rigid
Section
Figure 14b. Rear Vented, wall mounted Multi-elbow termination installation.
Installation for H*38DF* must have a minimum vertical rise of 52".The vent run
must comply with the Venting Graph for Rear vent, wall mounted terminations,
Figure 14.
PXT Extension
RHS101 Heat
Shield
Termination
18" MaX.
28 3/4"
Exterior
Wall
30" Max.
23 1/4"
Min.
52" Min.
18"
Max.
28 3/4"
XG0147 - 011912.1