Vermont Casting NVBR36 - Manual (Page 11)

11
NVB Series B-Vent Gas Fireplace
7412950
FP567
Fig. 13 Venting configurations.
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Venting Runs
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Horizontal Run (in feet)
Vertical Run (in feet)
A
A: Vertical installations up to 40 feet (12m) in
height. Up to a 6 ft. horizontal vent run can be
installed within the vent system using a
maximum of two 90-degree elbows or four
45-degree elbows.
B: Vertical installations up to 40 feet (12m) in
height. Up to a 10 ft. horizontal vent run can be
installed within the vent system using a
maximum of two 45-degree elbows.
B
= Acceptable venting configuration
= Unacceptable venting configuration
FP567a
Fig. 14 Venting configurations when installing 36GSKBB.
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
2 4 6 8 10 12 14 16 18 20
A
FP567a
Venting Run
Graph
8/17/99 djt
Horizontal Run (in feet)
Vertical Run (in feet)
= Acceptable venting configuration
= Unacceptable venting configuration
A: Vertical installation up to 40 feet (12m) in
height. Up to a 16 ft. horizontal vent run
can be installed within the vent system
using a maximum of two 90 degree elbows
or four 45 degree elbows.
B: Vertical installation up to 40 feet (12m) in
height. Up to a 20 ft. horizontal vent run
can be installed within the vent system
using a maximum of two 45 degree elbows.
B