Home » Boiler Models and Specs - Boiler Features
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| Models | OWB-9 | OWB-15 | OWB-25 | OWB-35 | OWB-50 |
|---|---|---|---|---|---|
| Output Capacity BTU/HR | 76,500 | 127,500 | 212,500 | 297,500 | 425,000 |
| Net Rating, Water BTU/HR | 66,500 | 110,800 | 184,700 | 258,600 | 369,500 |
| Net Rating, Water Sq. Ft. | 522 | 875 | 1,450 | 2,030 | 2,900 |
| Burner GPH | .60 | 1.00 | 1.70 | 2.40 | 3.30 |
| Flue Diameter, In. | 7 | 7 | 7 | 10 | 10 |
| Shipping Weight, lbs. | 527 | 716 | 980 | 2,080 | 2,280 |
| Width, In. | 23 | 33 | 42 | 52-5/8 | 57-5/8 |
| Height, In. | 24-5/8 | 24-5/8 | 24-5/8 | 36-1/2 | 36-1/2 |
| Depth, In. | 23-3/4 | 23-3/4 | 23-3/4 | 33-1/4 | 33-1/4 |
| Approx. Water Content, Gal. | 5.5 | 8.2 | 10.8 | 28.5 | 31.7 |
