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H42DF-O Outdoor Gas Fireplace
Top Vent Venting Runs
For the H42DF-O Top Vent, there are two types of installations: A)
Through-The-Wall Installations and B) Vertical (Through-The-Roof)
Installations.
A) Through-The-Wall Installations
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 fireplace flue collar to
the wall flange of the termination. Plot on the Venting Graph (Fig. 9a)
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 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 108" and the horizontal run to
the wall flange of the vent termination is 120", this would 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 84", this would
NOT be an acceptable installation.
Figure 9c. H42DF-ODTop Vent Venting Graph
NOTES:
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
graph (see Figure 7).
Page 8
Installation
Available Top Vent Components
The following venting components are available for the H42DF-O Top
Vent:
A - Termination
B - Stucco Kits
C - Flex Sections
D - Rigid
Sections
E - Elbows
NOTES:
Example 1:
For our shortest venting configuration use components A and E (see
Figure 10).
Figure 10. Typical Top Vent installation. If the 90° elbow is installed
directly on the fireplace, for height to the center of the
termination see chart on page 3.
An inspection of the explosion relief flappers and door must be
made prior to lighting the fireplace. This will ensure the door gas-
keting material will provide an adequate seal during operation.
4" / 7" Venting
MTO-3 (3" Length)
PTO-3 (3" Length)
MTO-3F (3" Length)
PTO-3F (3" Length)
MSR (Stucco Frame)
MSR (Stucco Frame)
MOSR (Stucco Can)
MOSR (Stucco Can)
BSR ( Brick Can)
BSR ( Brick Can)
MFL-1 (12" Section)
PFL-1 (12" Section)
MFL-2 (24" Section)
PFL-2 (24" Section)
MFL-3 (36" Section)
PFL-3 (36" Section)
MFL-4 (48" Section)
PFL-4 (48" Section)
MEXT-1 (12" m/f Section)
PEXT-1 (12" m/f Section)
MEXT-2 (24" m/f Section)
PEXT-2 (24" m/f Section)
MEXT-3 (36" m/f Section)
PEXT-3 (36" m/f Section)
MEXT-4 (48" m/f Section)
PEXT-4 (48" m/f Section)
MEL-90MM (m/m 90° Elbow)
PEL-90MM (m/m 90° Elbow)
MEL-90FF (f/f 90° Elbow)
PEL-90FF (f/f 90° Elbow)
MEL-90FM (f/m 90° Elbow)
PEL-90FM (f/m 90° Elbow)
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
graph (see Figure 7).
RHS8 Heat Shield
PEL
PEL-90F/F Elbow
Important:
5" / 8" Venting
Part No. XG0149
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