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L-Series DF Gas Fireplace
Part No. XG0180
f i r e f e a t u r e
Installation
B. Multi-Elbow Installations
For more difficult installation situations, the L-Series DF Rear Vent may
be installed with two - 90° elbows and up to 15' of horizontal run. If using
this installation option, you must adhere to the following guidelines:
the first 90° elbow must be placed directly on the flue collar
you must have a minimum vertical lift of 50" (measured from the
hearth)
your vent run must fall within the limits set by Figure 22
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. 22) with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
L38DF
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 94" 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 fireplace is 78" and
the horizontal run to the wall flange of the vent termination is 108",
this would NOT be an acceptable installation.
Figure 22.
L38DF Multi-Elbow Venting Graph.
L38DF
L42DF
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 fireplace is 78" and
the horizontal run to the wall flange of the vent termination is 108",
this would NOT be an acceptable installation.
L52DF
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.
L42DF
Figure 22b.
L42DF Multi-Elbow Venting Graph.
0
12 24 36 48 60 72 84 96 108
132
120
144 156 168 180
Horizontal Run (in.)
Hearth
0
12
24
36
48
60
72
84
96
108
L52DF
