| Model |
Input (Btuh) |
Heating Capacity (Btuh) (1) |
Sq. Ft. steam |
Steam BTUH |
AFUE % (1) |
| GSA-075 |
75,000 |
62,000 |
196 |
47,000 |
83.0 |
| GSA-100 |
100,000 |
83,000 |
258 |
62,000 |
82.9 |
| GSA-125 |
125,000 |
104,000 |
325 |
78,000 |
82.9 |
| GSA-150 |
150,000 |
125,000 |
392 |
94,000 |
82.9 |
| GSA-175 |
175,000 |
145,000 |
454 |
109,000 |
82.8 |
| GSA-200 |
200,000 |
167,000 |
521 |
125,000 |
82.8 |
| GSA-250 |
250,000 |
209,000 |
654 |
157,000 |
83.0 |
| GSA-300 |
300,000 |
247,000 |
770 |
185,000 |
82.4 |
*DOE Seasonal Efficiency % A.F.U.E.
