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Specifications continued-
Table 2: Water Heater Capacities
Model
30-Gal. / Res.
40-Gal. "R" / Res.
50-Gal. "R" / Res.
65-Gal. / Res.
65-Gal. / Com.
80-Gal. / Res.
80-Gal. / Com.
120-Gal. / Res.
120-Gal. / Com.
Table 3: AHRI Certified Water Heater Ratings
First Hour
Model
Rating
(Gal/Hr)
30-Gal. /
Res.
40-Gal.
"R" / Res.
50-Gal.
"R" / Res.
65-Gal. /
Res.
65-Gal. /
Com.
80-Gal. /
Res.
80-Gal. /
Com.
120-Gal. /
Res.
120-Gal. /
Com.
NOTES: These ratings were obtained with a heat source output rate
and flow rate as specified in Table 3 and a 180°F boiler water supply
temperature. Other results will be obtained under different conditions.
Tank
Capacity
(Gal)
29
37
43
57
54
71
67
110
107
Continuous
Draw
Rating
(Gal/Hr)
197
180
205
180
210
180
215
175
370
335
235
175
380
335
265
175
400
325
Coil Volume
(Gal)
2.7
2.7
2.7
2.7
5.0
2.7
5.0
2.7
5.0
Standby
Heat Loss
Rating
(°F/Hr)
1.2
1.1
0.9
0.8
0.8
0.6
0.6
0.4
0.4
8
Dry Weight
Wet Weight
(Lbs)
140
172
180
196
265
224
293
355
415
Minimum
Heat Output
Rate of the
Heat Source
(BTU/Hr)
120,000
120,000
120,000
115,000
225,000
115,000
225,000
115,000
220,000
(Lbs)
404
486
576
704
768
861
920
1324
1370
Minimum
Heat
Source
Flow Rate
(Gal/Min)
13.7
13.7
13.7
13.7
14.0
13.7
14.0
13.7
14.0
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