Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT vs Jotul North America (Jotul U.S.A., Inc.) F35
The Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT is the cleaner burner: 0.3 g/hr certified particulate emissions versus 1.2 g/hr. The Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT is the more efficient unit: 77% versus 69% HHV — more heat from every cord. The Jotul North America (Jotul U.S.A., Inc.) F35 produces more peak heat (59,443 vs 15,906 BTU/h), suiting roughly 1,700–2,400 sq ft. The Jotul North America (Jotul U.S.A., Inc.) F35 has the larger firebox (1.57 vs 1.31 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT is a catalytic stove and the Jotul North America (Jotul U.S.A., Inc.) F35 a non-catalytic stove — see the catalytic vs non-catalytic guide for what that means day to day.
| Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT | Jotul North America (Jotul U.S.A., Inc.) F35 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Non-Catalytic Stove |
| Certified fuel | Crib Wood | Cord Wood |
| Emission rate | 0.3 g/hr | 1.2 g/hr |
| Efficiency (HHV) | 77 % | 69 % |
| Heat output (low) | 10665 BTU/h | 13533 BTU/h |
| Heat output (high) | 15906 BTU/h | 59443 BTU/h |
| Firebox volume | 1.31 cu ft | 1.57 cu ft |
| Carbon monoxide | 0.82 g/min | 1.35 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | No |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 115-18 | 317-22 |
| Covered model numbers | Vermont Castings Intrepid FlexBurn 2115-CAT | F35 |
Frequently asked questions
Which burns cleaner, the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT or the Jotul North America (Jotul U.S.A., Inc.) F35?
The Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT: 0.3 g/hr certified particulate emissions versus 1.2 g/hr for the Jotul North America (Jotul U.S.A., Inc.) F35.
Are the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT and Jotul North America (Jotul U.S.A., Inc.) F35 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.