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taBle 6. teChniCal data Venting
type B gas Vent
multiple gas fired tank-type heaters
When venting multiple tank type heaters using Type b vent
pipe, follow the installation diagram (figure 13) and tables
below which give sizing and data based upon NFPA 54/ANSI
Z223. 2006.
model sBl81120ne
input: 120,000 Btu/hr
Vent connector size: 6 inches
number of 120 heaters
2
3
4
model sBl81154ne
input: 154,000 Btu/hr
Vent connector size: 6 inches
number of 154 heaters
2
3
4
model sBl95180/199ne
input: 180,000 and 199,000 Btu/hr
Vent connector size: 6 inches
number of heaters
2
3
4
All manuals and user guides at all-guides.com
input Btu/hr
rise
120,000
1 ft.
120,000
2 ft.
120,000
3 ft.
Combined input in
thousands of Btu/hr
240,000
360,000
480,000
input Btu/hr
rise
154,000
1 ft.
154,000
2 ft.
154,000
3 ft.
Combined input in
thousands of Btu/hr
308,000
462,000
616,000
input Btu/hr
rise
180,000
1 ft.
199,000
1 ft.
180,000
2 ft.
199,000
2 ft.
180,000
3 ft.
199,000
3 ft.
Combined input in
thousands of Btu/hr
360,000
398,000
540,000
597,000
720,000
796,000
total Vent height (feet)
6
8
10
Vent Connector diameter (inches)
6
6
5
5
5
5
5
5
5
manifold and Common Vent diameter (inches)
7
7
6
8
8
7
9
9
9
total Vent height (feet)
6
8
10
Vent Connector diameter (inches)
6
6
6
6
6
6
6
6
6
manifold and Common Vent diameter (inches)
7
7
6
8
8
7
9
9
9
total Vent height (feet)
6
8
10
Vent Connector diameter (inches)
7
7
6
7
7
7
6
6
6
7
7
6
6
6
6
6
6
6
manifold and Common Vent diameter (inches)
8
8
8
8
8
8
10
9
9
10
9
9
12
12
10
12
12
10
18
15
20
30
50
5
5
5
5
5
5
5
5
5
5
5
5
6
6
6
6
7
7
6
6
8
8
7
7
15
20
30
50
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
7
7
6
6
8
8
7
7
15
20
30
50
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
7
7
7
6
7
7
7
6
9
8
8
7
9
8
8
7
10
9
9
8
10
9
9
8
100
5
5
5
6
6
6
100
6
6
6
6
6
6
100
6
6
6
6
6
6
6
6
7
7
8
8
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