A.O. Smith HW-670 User Manual
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TABLE 3, RECOVERY CAPACITIES - CANADIAN MODELS ONLY
Input
Temp. (C)
11
17
22
26
33
39
44
50
56
61
67
72
78
Model
(Btu/Hr.)
Rise (F)
20
30
40
50
60
70
80
90
100
110
120
130
140
HW-300
300,000
LPH
5,505
3,670
2,753
2,202 1,835
1,573
1,376
1,223
1,001
1,001
918
847
786
GPH
1,455
970
727
582
485
416
364
323
291
264
242
224
208
HW-399
399,000
LPH
7,322
4,882
3,661
2,929 2,441
2,092
1,831
1,627
1,464
1,331
1,220
1,127
1,046
GPH
1,935
1,290
967
774
645
553
484
430
387
352
322
298
276
HW-420
420,000
LPH
7,708
5,138
3,854
3,083 2,569
2,202
1,927
1,713
1,542
1,401
1,285
1,186
1,101
GPH
2,036
1,358
1,018
815
679
582
509
453
407
370
339
313
291
HW-520
520,000
LPH
9,543
6,362
4,771
3,817 3,181
2,727
2,386
2,121
1,909
1,735
1,590
1,468
1,363
GPH
2,521
1,681
1,261
1,008
840
720
630
560
504
458
420
388
360
HW-610
610,000
LPH
11,194 7,463
5,597
4,478 3,731
3,198
2,799
2,488
2,239
2,035
1,866
1,722
1,599
GPH
2,958
1,972
1,479
1,183
986
845
739
657
592
538
493
455
423