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Quadra-Fire • QV-PIER, QV-ST Series: HV-IPI • 2005-901 Rev. G • 2/06
Figure 18. Venting with three 90° elbows
H
H
1
H
2
V
H
V
H
1
V
1
NATURAL GAS
VENTING WITH THREE 90° ELBOWS
V + V
1
(FT.) H + H
1
(FT.)
1' MIN. (305mm) 3' MAX. (914mm)
2' MIN. (610mm) 6' MAX. (1.83m)
3' MIN. (914mm) 9' MAX. (2.7m)
4' MIN. (1.22m) 12' MAX. (3.6m)
5’ MIN. (1.5m) 15’ MAX. (4.5m)
6’ MIN. (1.83m) 18’ MAX. (5.5m)
V+ V
1
+ H + H
1
= 50’ MAX. (15.2m)
PROPANE
VENTING WITH THREE 90° ELBOWS
V + V
1
(FT.) H + H
1
(FT.)
1' MIN. (305mm) 2' MAX. (610mm)
2' MIN. (610mm) 4' MAX. (1.22m)
3' MIN. (914mm) 6’ MAX. (1.83m)
4' MIN. (1.22m) 8' MAX. (2.4m)
5’ MIN. (1.5m) 10' MAX. (3.0m)
6’ MIN. (1.83m) 12' MAX. (3.6m)
V+ V
1
+ H + H
1
= 50’ MAX. (15.2m)
H + H
1
= 12’ MAX. (3.6m)
H + H
1
= 18’ MAX. (5.5m)
NATURAL GAS
VENTING WITH THREE 90° ELBOWS
V + V
1
(FT.) H + H
1
+ H
2
(FT.)
1' MIN. (305mm) 3' MAX. (914mm)
2' MIN. (610mm) 6' MAX. (1.83m)
3' MIN. (914mm) 9' MAX. (2.7m)
4' MIN. (1.22m) 12' MAX. (3.6m)
5’ MIN. (1.5m) 15’ MAX. (4.5m)
6’ MIN. (1.83m) 18’ MAX. (5.5m)
V+ V
1
+ H + H
1
+ H
2
= 50’ MAX. (15.2m)
PROPANE
VENTING WITH THREE 90° ELBOWS
V + V
1
(FT.) H + H
1
+ H
2
(FT.)
1' MIN. (305mm) 2' MAX. (610mm)
2' MIN. (610mm) 4' MAX. (1.22m)
3' MIN. (914mm) 6’ MAX. (1.83m)
4' MIN. (1.22m) 8' MAX. (2.4m)
5’ MIN. (1.5m) 10' MAX. (3.0m)
6’ MIN. (1.83m) 12' MAX. (3.6m)
V+ V
1
+ H + H
1
+ H
2
= 50’ MAX. (15.2m)
H + H
1
+ H
2
= 12’ MAX. (3.6m)
H + H
1
+ H
2
= 18’ MAX. (5.5m)