GSA
Gas-Fired Steam Boilers –
Boiler Manual
30
Part Number 550-110-738/1012
11 Dimensions
Figure 24
Dimensional drawing – ALL DIMENSIONS IN INCHES
Boiler
model
number
Supply
tapping
(inches NPT)
Return
tapping
(inches NPT)
Gas connection
& manifold size
(Note 2)
(inches NPT)
“V”
Damper
height
(inches)
“D”
Vent
diameter
(inches)
“W”
Jacket
width
(inches)
Approximate
shipping
weight
GSA-075
3
2½
1
/
2
6
5
17
430
GSA-100
3
2½
1
/
2
6
5
17
430
GSA-125
3
2½
1
/
2
6
1
/
2
6
21¼
505
GSA-150
3
2½
1
/
2
6
1
/
2
6
21¼
505
GSA-175
3
2½
1
/
2
9
7
25½
585
GSA-200
3
2½
1
/
2
9
7
25½
585
GSA-250
3
2½
3
/
4
9
1
/
2
8
29¾
660
GSA-300
3
2½
3
/
4
Note 3
Note 3
34
735
Note 2: Size gas piping from meter to boiler per local utility requirements.
Note 3: GSA-300 the damper is additional equipment.