Termination
It is imperative that the vent termination be located observing the minimum clearances as shown. There must not be any
obstruction such as bushes, garden sheds, fences, decks or utility buildings within 24" from the front of the termination plate.
Do not locate termination where excessive snow or ice build-up may occur. Be sure to check vent termination area after snow
falls and clear to prevent accidental blockage of venting system. When using snow blowers, make sure snow is not directed
towards vent termination area.
General Venting Information
This gas fireplace is approved to be vented either through the side wall or vertically through the roof. It is approved with
Kingsman flex vent system and also approved for use with Simpson Dura-vent Direct Vent System (model DV-GS series),
AmeriVent Direct Vent Pipe System, and Selkirk Direct Temp.
Kingsman flex vent system can be used with Simpson Dura-vent Direct Vent termination’s (model DV-GS series). When using
Simpson Dura-vent, AmeriVent Direct Vent pipe, or Selkirk Direct Temp a Kingsman / Dura-vent adapter must be used.
ONLY VENTING COMPONENTS SPECIFICALLY APPROVED AND LABELED FOR THIS FIREPLACE MAY BE USED.
Venting terminal shall not be recessed into a wall or siding.
Venting Routes and Components
Since it is very important that the vent system maintain its balance between the combustion air intake and the flue gas
exhaust, certain limitations as to vent configurations apply and must be strictly adhered to. The table (see Horizontal Vent
Table on page 32) showing the relationship between vertical and horizontal side wall venting will help to determine the various
vent lengths.
The maximum horizontal run with the 90 degree bend at the fireplace flue outlet is 4ft [122cm] (see Figure 25). The maximum
horizontal run is 25ft [7.6m] when the vertical run is 6.5ft [2.0m] (see Figure 24). Note: 1/4" [0.6cm] vertical rise is required for
every 12" [30.5cm] of horizontal run.
The maximum number of 45 degree bends per side wall installation is two [2] in the horizontal run and then you must reduce
the length of the horizontal by 18" [45.7cm] for each 45 degree bend.
The maximum vertical run is 40ft [12.2m].
Special Note: For each 45 degree bend installed in the horizontal run, the length of the horizontal run must be
reduced by 18" [45.7cm]. This does not apply if the 45 degree bends are installed on the vertical part of the vent
system.
Example
If the length of the horizontal run is 10ft [3m], and two 45 degree bends are required, then the horizontal run length must
be reduced to 7ft [2.1m] to achieve proper venting. If 10ft [3m] of horizontal run is required in conjunction with the two 45
degree bends, then the vertical run must be reduced appropriately. Please refer to Horizontal Vent Table for the
relationship between horizontal and vertical runs.
Note that two additional 90 degree bends, or equivalent, are allowed. However, to do so the horizontal run must be
reduced by 36" [91cm] for each 90 degree bend.
IMPORTANT: Always locate the fireplace in such a way that a minimum of offsets and/or horizontal runs are
required. 1/4” [0.6cm] vertical rise is required for every 12” [30.5cm] horizontal run.
Minimum clearance to combustibles on venting is 1" [2.5cm] with the following exceptions:
Top of horizontal is 2-1/2" [6.4cm] for the MQZDV3927 and 3-1/2” [8.9cm] for MQZDV4634.
Top of 90 degree elbow is 4" [10.2cm] for MQZDV3927 and 11” [27.9cm] for MQZDV4634.
45
