28
SPECIFICATIONS DATA
Model
10 min. Peak Flow
1st Hour
Continuous Flow
Storage Temp.
Storage Temp.
Rise in Temp.
140ºF
180ºF
140ºF
180ºF
80ºF
G-25
46
56
153
163
128
G-30
51
61
178
188
153
Chart 4: Performance
Type
HM G-25
HM G-30
Input
Btu/hr
100,000
120,000
Inner Tank Capacity
Gal
20
20
Outer Tank Capacity
Gal
22
22
Dimensions
Inches
A
59
59
B
21
21
C
28
28
D
54.5
54.5
E
14
14
F
54
54
G
8
8
H
16
16
Vent size
ø
3"
3"
Connections:
TP Valve (domestic)
ø
3/4"
3/4"
Domestic water
ø
3/4"
3/4"
Primary connection
ø
1"
1"
Drain
ø
1/2"
1/2"
Empty weight
lb
363
363
Heat exchanger surface
Sq. Ft.
17
17
Chart 3: Dimensional Data
