Jotul North America (Jotul U.S.A., Inc.) F35 vs New Buck Corporation (Buck Stove Corp.) Model 91
The Jotul North America (Jotul U.S.A., Inc.) F35 is the cleaner burner: 1.2 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 69% HHV — more heat from every cord. The Jotul North America (Jotul U.S.A., Inc.) F35 produces more peak heat (59,443 vs 43,190 BTU/h), suiting roughly 1,700–2,400 sq ft. The New Buck Corporation (Buck Stove Corp.) Model 91 has the larger firebox (3.07 vs 1.57 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Jotul North America (Jotul U.S.A., Inc.) F35 is a non-catalytic stove and the New Buck Corporation (Buck Stove Corp.) Model 91 a catalytic stove — see the catalytic vs non-catalytic guide for what that means day to day.
| Jotul North America (Jotul U.S.A., Inc.) F35 | New Buck Corporation (Buck Stove Corp.) Model 91 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Non-Catalytic Stove | Catalytic Stove |
| Certified fuel | Cord Wood | Crib Wood |
| Emission rate | 1.2 g/hr | 1.3 g/hr |
| Efficiency (HHV) | 69 % | 80 % |
| Heat output (low) | 13533 BTU/h | 14206 BTU/h |
| Heat output (high) | 59443 BTU/h | 43190 BTU/h |
| Firebox volume | 1.57 cu ft | 3.07 cu ft |
| Carbon monoxide | 1.35 g/min | 0.6 g/min |
| 25C tax credit eligible (≥75% HHV) | No | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 317-22 | 239-19 |
| Covered model numbers | F35 | Model 91, Carolina 92 |
Frequently asked questions
Which burns cleaner, the Jotul North America (Jotul U.S.A., Inc.) F35 or the New Buck Corporation (Buck Stove Corp.) Model 91?
The Jotul North America (Jotul U.S.A., Inc.) F35: 1.2 g/hr certified particulate emissions versus 1.3 g/hr for the New Buck Corporation (Buck Stove Corp.) Model 91.
Are the Jotul North America (Jotul U.S.A., Inc.) F35 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.