2
ROUGH-IN-DIMENSIONS

HEATER PERFORMANCE DAT A

NOTE: To compensate for the effects of high altitude areas above 2000 feet, input rating, and therefore recovery ratings, should be

reduced approximately 4% for each 1000 feet above sea level.

Recovery rating of models shown in chart above are obtained by actual efficiency test data by recognized Certification Agency.
NOTE: Recovery rate shown on each models rating plate is based on the requirements of ANSI Standard Z21.10.3, which stipulates
the data to be based on energy efficiency of 75%.
TABLE 3 - CAPACITY AND GAS AND ELECTRIC CHARACTERISTICS
Manifold Pressure Maximum Supply Pressure Electrical Characteristics
Model Type of Gas Inches W.C. kPa Inches W.C. kPa Volts/Hz Amperes
HW-120M thru 225M NATURAL 3.5 0.87 10.5 2.61 120/60 <5
HW-120M thru 200M PROPANE 10 2.49 13.0 3.23 120/60 <5
Minimum Supply Pressure, Natural Gas: 4.5 inches W.C. (1.12 kPa)
Minimum Supply Pressure, Propane Gas: 11.0 inches W.C. (1.74 kPa)
Minimum Pressure must be maintained under both load and no load (static and dynamic) conditions.
Models HW-120M HW-160M HW-200M HW-200M
Dimensions Inches mm Inches mm Inches mm Inches mm
A49 3/8 1254 50 1/8 1273 53 1/4 1353 60 1524
B30 3/8 772 30 3/8 772 33 1/8 841 33 1/8 841
C23 5/8 600 23 5/8 600 27 1/8 689 27 1/8 689
D20 3/4 527 20 3/4 527 20 3/4 527 20 3/4 527
E5 1/2 140 5 1/2 140 5 1/2 140 5 1/2 140
F10 254 10 254 10 254 10 254
G11 13/16 300 11 13/16 300 11 13/16 300 11 13/16 300
H6 152 7 178 7 178 7 178
J26 11/16 678 26 11/16 678 26 11/16 678 26 11/16 678
K20 3/4 527 20 3/4 527 20 3/4 527 20 3/4 527
L 1 1/4 NPT 1 1/4 NPT 1 1/4 NPT 1 1/4 NPT
M 1 NPT 1 NPT 1 NPT 1 NPT
N 1/2 NPT 1/2 NPT 1/2 NPT 1/2 NPT
W1 3/4 44 1 3/4 44 1 3/4 44 1 3/4 44
Approx.
Shipping 120 lbs. 54 Kg. 155 lbs. 70 Kg. 165 Lbs. 75 Kg. 175 lbs. 79 Kg.
Weight
TABLE 1 - ROUGH-IN DIMENSIONS
TABLE 2 - RECOVERY CAPACITIES U.S. Gallons/Hrs. and Litres/Hr. at TEMPERATURE RISE INDICATED
Input F° 20F° 30F° 36F° 40F° 50F° 54F° 60F° 70F° 72F° 80F° 90F° 100F° 108F° 110F° 120F° 126F° 130F° 140F°
Model Btuh KW C° 11.1C° 16.6C° 20C° 22.2C° 27.7C° 30C° 33.3C° 38.8C° 40C° 44.4° 50C° 55.5C° 60C° 61.1C° 66.6C° 70C° 72.2C°77.7C°
120,000 GPH 605 403 336 303 242 224 202 173 168 151 134 121 112 110 101 96 93 86
35 LPH 2290 1527 1272 1145 916 848 763 654 636 573 509 458 242 416 382 364 352 327
160,000 GPH 777 518 432 388 311 288 259 222 216 194 173 155 144 141 129 123 120 111
47 LPH 2941 1961 1634 1471 1176 1089 980 840 817 735 654 588 545 535 490 467 452 420
199,000 GPH 987 658 548 494 395 366 329 282 274 247 219 197 183 179 165 157 152 141
58 LPH 3737 2491 2076 1869 1495 1384 1246 1068 1038 934 830 747 692 679 623 593 575 534
225,000 GPH 1096 731 609 548 438 406 365 313 304 274 244 219 203 199 183 174 169 157
66 LPH 4149 2766 2305 2074 1659 1537 1383 1185 1152 1037 922 830 768 754 691 659 638 593
HW-120M
HW-160M
HW-200M
HW-2250M