White Mountain Hearth DVTL27FP90N-1 Installation Instructions And Owner's Manual page 26

Direct vent zero clearance gas fireplace
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The vertical termination cap for this fireplace must not be any
closer than 24-in. to any other vent termination or chimney of any
type.
Page 26
VERTICAL TERMINATION (continued)
Figure 42
Figure 43
Vertical Through the Roof Applications
Your Gas Fireplace has been approved for:
a) Vertical installations up to 40 feet in height.
b) Two sets of 45° elbow offsets within these vertical installations.
A vent pipe from 0 to a maximum of 8 feet can be used between
elbows.
c) Wall straps must be used to support offset pipe every 4 feet
This application will require that you first determine the roof pitch
and use the appropriate venting components.
OFFSET CHART
OFFSET
SIZE
ELBOW
CHIMNEY
DEGREES
SECTION
45°
45°
45°
45°
45°
45°
45°
45°
RISE
5" X 8"
OFFSET
RISE
INCHES
INCHES
0"
5-5/8"
15-3/8"
6"
8-7/8"
18-3/8"
9"
10-7/8"
20-5/8"
12"
13"
22-5/8"
24"
21-3/8"
31-1/8"
36"
29-7/8"
39-3/8"
36"
28-7/8"
39-3/8"
48"
38-1/4"
47-7/8"
Figure 44
33740-7-0515

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