- 51 -
Out Put Temperature vs. GPM (Max. 9.0 GPM) with Various Ground Water Temperature
Correct Gas pipe size can be expect this chart
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Out p ut Hot Water Temp erature
O
u
t P
u
t
H
o
t W
a
te
r
G
P
M
40 F
50 F
60 F
70 F
40 F
6.4
5.9
5.5
5.1
4.8
4.5
4.3
4.0
3.8
3.5
3.2
3.1
2.9
2.8
2.7
2.6
50 F
7.7
7.0
6.4
5.9
5.5
5.1
4.8
4.5
4.3
3.8
3.5
3.3
3.2
3.1
2.9
2.8
60 F
9.0
8.5
7.7
7.0
6.4
5.9
5.5
5.1
4.8
4.3
3.8
3.7
3.5
3.3
3.2
3.1
70 F
9.0
9.0
9.0
8.5
7.7
7.0
6.4
5.9
5.5
4.8
4.3
4.0
3.8
3.7
3.5
3.3
100
105
110
115
120
125
130
135
140
150
160
165
170
175
180
185
＊
When the set temperature is 150ºF or higher, maximum flow rate is limited to 5.3 GPM.
