Specifications

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Indirect Fired Water Heaters Installation and Operating Manual
Installation & Operating Manual
First Hour Rating - 180°F Boiler Loop Water (Universal Sizing - 45,000 - 295,000 Btu/hr) Table 8C
Model SST300-80 SST450-119
Circulator Flow
(GPM)
5 8 12 16 20 5 8 12 16 20
Domestic Outlet
115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140
Boiler Heating Capacity
45,000 163 138 163 138 197 172 197 172
60,000 193 159 193 159 226 193 226 193
75,000 222 180 222 180 255 213 255 213
95,000 261 207 261 207 261 207 294 241 294 241 294 241
115,000 300 235 300 235 300 235 300 235 333 268 333 268 333 268 333 268
140,000 304 238 347 268 347 268 347 268 347 268 384 302 382 302 382 302 382 302 382 302
165,000 304 238 349 270 374 288 395 302 395 302 387 306 429 337 429 337 429 337 429 337
195,000 349 270 374 288 409 312 424 323 483 375 485 376 485 376 485 376
225,000 374 288 409 312 424 323 501 388 548 421 541 416
260,000 424 323 573 438 596 454
295,000 596 454
Max BTU Input 115,860 139,106 154,002 171,229 181,544 141,419 190,161 204,795 237,649 253,504