Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT vs New Buck Corporation (Buck Stove Corp.) Model 91
The Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT is the cleaner burner: 0.3 g/hr certified particulate emissions versus 1.3 g/hr. The New Buck Corporation (Buck Stove Corp.) Model 91 is the more efficient unit: 80% versus 77% HHV — more heat from every cord. The New Buck Corporation (Buck Stove Corp.) Model 91 produces more peak heat (43,190 vs 15,906 BTU/h), suiting roughly 1,250–1,750 sq ft. The New Buck Corporation (Buck Stove Corp.) Model 91 has the larger firebox (3.07 vs 1.31 cu ft), which generally means longer burns between reloads.
| Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT | New Buck Corporation (Buck Stove Corp.) Model 91 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.3 g/hr | 1.3 g/hr |
| Efficiency (HHV) | 77 % | 80 % |
| Heat output (low) | 10665 BTU/h | 14206 BTU/h |
| Heat output (high) | 15906 BTU/h | 43190 BTU/h |
| Firebox volume | 1.31 cu ft | 3.07 cu ft |
| Carbon monoxide | 0.82 g/min | 0.6 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 115-18 | 239-19 |
| Covered model numbers | Vermont Castings Intrepid FlexBurn 2115-CAT | Model 91, Carolina 92 |
Frequently asked questions
Which burns cleaner, the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT or the New Buck Corporation (Buck Stove Corp.) Model 91?
The Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT: 0.3 g/hr certified particulate emissions versus 1.3 g/hr for the New Buck Corporation (Buck Stove Corp.) Model 91.
Are the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT and New Buck Corporation (Buck Stove Corp.) Model 91 both EPA certified?
Yes — both appear on the U.S. EPA's current list of certified wood heaters, and every figure on this page comes from their certification records.