Blaze King Industries King KE40 (3) vs New Buck Corporation (Buck Stove Corp.) Model 91
The Blaze King Industries King KE40 (3) is the cleaner burner: 1 g/hr certified particulate emissions versus 1.3 g/hr. The Blaze King Industries King KE40 (3) is the more efficient unit: 81% versus 80% HHV — more heat from every cord. The New Buck Corporation (Buck Stove Corp.) Model 91 produces more peak heat (43,190 vs 38,516 BTU/h), suiting roughly 1,250–1,750 sq ft. The Blaze King Industries King KE40 (3) has the larger firebox (4.55 vs 3.07 cu ft), which generally means longer burns between reloads.
| Blaze King Industries King KE40 (3) | 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 | 1 g/hr | 1.3 g/hr |
| Efficiency (HHV) | 81 % | 80 % |
| Heat output (low) | 10392 BTU/h | 14206 BTU/h |
| Heat output (high) | 38516 BTU/h | 43190 BTU/h |
| Firebox volume | 4.55 cu ft | 3.07 cu ft |
| Carbon monoxide | 0.49 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 | 220-19 | 239-19 |
| Covered model numbers | King KE40 | Model 91, Carolina 92 |
Frequently asked questions
Which burns cleaner, the Blaze King Industries King KE40 (3) or the New Buck Corporation (Buck Stove Corp.) Model 91?
The Blaze King Industries King KE40 (3): 1 g/hr certified particulate emissions versus 1.3 g/hr for the New Buck Corporation (Buck Stove Corp.) Model 91.
Are the Blaze King Industries King KE40 (3) 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.