Blaze King Industries Princess PI29 Insert (2) vs Jotul North America (Jotul U.S.A., Inc.) F35
The Blaze King Industries Princess PI29 Insert (2) is the cleaner burner: 1 g/hr certified particulate emissions versus 1.2 g/hr. The Blaze King Industries Princess PI29 Insert (2) 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 30,194 BTU/h), suiting roughly 1,700–2,400 sq ft. The Blaze King Industries Princess PI29 Insert (2) has the larger firebox (2.63 vs 1.57 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Blaze King Industries Princess PI29 Insert (2) 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.
| Blaze King Industries Princess PI29 Insert (2) | 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) | 80 % | 69 % |
| Heat output (low) | 9023 BTU/h | 13533 BTU/h |
| Heat output (high) | 30194 BTU/h | 59443 BTU/h |
| Firebox volume | 2.63 cu ft | 1.57 cu ft |
| Carbon monoxide | 0.704 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 | 123-18 | 317-22 |
| Covered model numbers | Princess PI29 Insert | F35 |
Frequently asked questions
Which burns cleaner, the Blaze King Industries Princess PI29 Insert (2) or the Jotul North America (Jotul U.S.A., Inc.) F35?
The Blaze King Industries Princess PI29 Insert (2): 1 g/hr certified particulate emissions versus 1.2 g/hr for the Jotul North America (Jotul U.S.A., Inc.) F35.
Are the Blaze King Industries Princess PI29 Insert (2) 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.