
14
Heat & Glo • ST-HVBI-AUB • 2082-980 Rev. B • 3/11
Figure 14. Flueing with three 90° elbows
H
H
1
H
2
V
H
V
H
1
V
1
NATURAL GAS
FLUEING WITH THREE 90° ELBOWS
V + V
1
(FT.)
H + H
1
+ H
2
(FT.)
1’ MIN. (305 mm)
3’ MAX. (914 mm)
2’ MIN. (610 mm)
6’ MAX. (1.83 m)
3’ MIN. (914 mm)
9’ MAX. (2.7 m)
4’ MIN. (1.22 m)
12’ MAX. (3.6 m)
V+ V
1
+ H + H
1
+ H
2
= 36’ MAX. (10.9 m)
H + H
1
+ H
2
= 12’ MAX. (3.6 m)
PROPANE
FLUEING WITH THREE 90° ELBOWS
V + V
1
(FT.)
H + H
1
+ H
2
(FT.)
1’ MIN. (305 mm)
2’ MAX. (610 mm)
2’ MIN. (610 mm)
4’ MAX. (1.22 m)
3’ MIN. (914 mm)
6’ MAX. (1.83 m)
4’ MIN. (1.22 m)
8’ MAX. (2.4 m)
V+ V
1
+ H + H
1
+ H
2
= 36’ MAX. (10.9 m)
H + H
1
+ H
2
= 8’ MAX. (2.4 m)
NATURAL GAS
FLUEING WITH THREE 90° ELBOWS
V + V
1
(FT.)
H + H
1
(FT.)
1’ MIN. (305 mm)
3’ MAX. (914 mm)
2’ MIN. (610 mm)
6’ MAX. (1.83 m)
3’ MIN. (914 mm)
9’ MAX. (2.7 m)
4’ MIN. (1.22 m)
12’ MAX. (3.6 m)
5’ MIN. (1.5 m)
15’ MAX. (4.5 m)
V+ V
1
+ H + H
1
= 36’ MAX. (10.9 m)
H + H
1
= 15’ MAX. (4.5 m)
PROPANE
FLUEING WITH THREE 90° ELBOWS
V + V
1
(FT.)
H + H
1
(FT.)
1’ MIN. (305 mm)
2’ MAX. (610 mm)
2’ MIN. (610 mm)
4’ MAX. (1.22 m)
3’ MIN. (914 mm)
6’ MAX. (1.83 m)
4’ MIN. (1.22 m)
8’ MAX. (2.4 m)
5’ MIN. (1.5 m)
10’ MAX. (3.0 m)
V+
V
1
+ H + H
1
= 36’ MAX. (10.9 m)
H + H
1
= 10’ MAX. (3.0 m)