Description
| Specification | Details |
|---|---|
| Brand | Osburn |
| Model | 3500 / OB03510 |
| Type | Wood-Burning Fireplace Insert |
| Fuel | Dry cordwood |
| Heating Area | 1,000–2,700 sq. ft. |
| Maximum Heat Output | 110,000 BTU/hr |
| Firebox Volume | 3.5 cu. ft. |
| EPA Loading Volume | 2.88 cu. ft. |
| Maximum Burn Time | Up to 10 hours |
| Combustion | Non-catalytic |
| Maximum Log Length | 22″ |
| Efficiency | 71% HHV / 76% LHV; 77% optimum |
| Emissions | 1.6 g/hr |
| Chimney / Flue | 6″ |
| Blower | 144 CFM included |
| Glass | Ceramic, approx. 19″ × 11¾” |
| Overall Width | 30⅜” |
| Overall Height | 24⅞” |
| Overall Depth | 29″ |
| Minimum Fireplace Opening | 31″W × 26¼”H × 18⅜”D |
| Shipping Weight | 540 lb |
| Warranty | Limited lifetime |
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