Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 vs MF Fire Nova C
The Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 is the cleaner burner: 1.1 g/hr certified particulate emissions versus 1.9 g/hr. The Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 is the more efficient unit: 78% versus 71% HHV — more heat from every cord. The Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 produces more peak heat (30,612 vs 28,140 BTU/h), suiting roughly 850–1,200 sq ft. The Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 has the larger firebox (2.56 vs 1.7 cu ft), which generally means longer burns between reloads.
| Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 | MF Fire Nova C | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 1.1 g/hr | 1.9 g/hr |
| Efficiency (HHV) | 78 % | 71 % |
| Heat output (low) | 11219 BTU/h | 23654 BTU/h |
| Heat output (high) | 30612 BTU/h | 28140 BTU/h |
| Firebox volume | 2.56 cu ft | 1.7 cu ft |
| Carbon monoxide | 0.49 g/min | 0.94 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | No |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 357-23 | 356-23 |
| Covered model numbers | K-251 Series: Ashwood LE-1, Wood Classic LE-1, Cambridge LE-1, Cascade LE-1 | Nova C |
Frequently asked questions
Which burns cleaner, the Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 or the MF Fire Nova C?
The Kuma Stove And Iron Works K-251 Series: Ashwood LE-1: 1.1 g/hr certified particulate emissions versus 1.9 g/hr for the MF Fire Nova C.
Are the Kuma Stove And Iron Works K-251 Series: Ashwood LE-1 and MF Fire Nova C 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.