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BOILER MODEL
NUMBER
Intermittent
Ignition w/Vent
Damper
GMGS075E
(1)
GMGS112E
(1)
GMGS150E
(1)
GMGS187E
(1)
GMGS225E
(1)
GMGS262E
(1)
GMGS299E
(1)
* MBH = 1,000 Btuh. Btuh = British Thermal Unit Per Hour.
† For altitudes above 2,000 ft. reduce input rate 4% for each 1,000 ft. above sea level.
Heating Capacity is based on DOE (Department of Energy) test procedure.
Add model number suffix 'P' for Propane Gas.
(1)
Net AHRI steam Ratings shown are based on a piping and pickup allowance of 1.333.
Base selection of boiler size on "Net AHRI Rating" being equal to or greater than installed radiation in square feet.
Consult manufacturer before selecting a boiler for installations having unusual piping and pickup requirements,such as
intermittent system operation, exhaust piping systems, etc.
RATINGS AND CAPACITY
Table 1 - Ratings and Capacities
No. of
Sec.
Fuel Type
3
Natural Gas
4
Natural Gas
5
Natural Gas
6
Natural Gas
7
Natural Gas
8
Natural Gas
9
Natural Gas
Heating
Input
Capacity
AFUE(%)
*MBTUH
*MBTUH
75
62
112
91
150
122
187
153
225
183
262
214
299
245
3
†Natural Gas
Net AHRI
Rating *Mbh
82.7
47
82.0
68
82.0
92
82.0
115
82.0
137
82.0
161
82.0
184
Net AHRI
Rating Sq. Ft.
Radiation
196
283
383
479
571
671
767
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