FPI/Regency Fireplace Products F1500 vs Jotul North America (Jotul U.S.A., Inc.) F35
The FPI/Regency Fireplace Products F1500 is the cleaner burner: 1 g/hr certified particulate emissions versus 1.2 g/hr. The FPI/Regency Fireplace Products F1500 is the more efficient unit: 78% 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 24,488 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 0.98 cu ft), which generally means longer burns between reloads. Combustion technology differs: the FPI/Regency Fireplace Products F1500 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.
| FPI/Regency Fireplace Products F1500 | 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 | 1 g/hr | 1.2 g/hr |
| Efficiency (HHV) | 78 % | 69 % |
| Heat output (low) | 14244 BTU/h | 13533 BTU/h |
| Heat output (high) | 24488 BTU/h | 59443 BTU/h |
| Firebox volume | 0.98 cu ft | 1.57 cu ft |
| Carbon monoxide | 0.32 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 | 73-16 | 317-22 |
| Covered model numbers | F1500, I1500 | F35 |
Frequently asked questions
Which burns cleaner, the FPI/Regency Fireplace Products F1500 or the Jotul North America (Jotul U.S.A., Inc.) F35?
The FPI/Regency Fireplace Products F1500: 1 g/hr certified particulate emissions versus 1.2 g/hr for the Jotul North America (Jotul U.S.A., Inc.) F35.
Are the FPI/Regency Fireplace Products F1500 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.