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Vermont Castings, Majestic Products
18 DVR33 10002823/0
• Up to two 45º elbows may be used within the horizontal
run. For each 45º elbow used on the horizontal level the
maximum horizontal length must be reduced by 18" (457
mm).
Example: Maximum horizontal length
0 x 45º elbows = 10' (3.1 m)
1 x 45º elbow = 8.5' (2.6 m)
2 x 45º elbows = 7' (2.1 m)
• A minimum of an 8' (2.4 m) vertical rise.
• Two sets of 45º elbow offsets within these vertical instal-
lations. From 0 to a maximum of 8' (2.4 m) of vent pipe
can be used between elbows. (Fig. 30)
• A 7DVCS bracket must be used to support offsets. This
application will require that you rst determine the roof
pitch and use the appropriate starter kit. (See Venting
Components List)
• The minimum height of the vent termination above the
highest point of penetration through the roof is 2' (610
mm), Fig. 31.
VERTICAL THROUGH-THE-ROOF
APPLICATIONS
This Gas Fireplace has been approved for,
• Vertical installations up to 40' (12 m) in height. Up to
a 10' (3.1 m) horizontal vent run can be installed within
the vent system using a maximum of two 90º elbows.
(Fig. 29)
Fig. 29
Fig. 30
Fig. 31
Fig. 32
Fig. 33