Kuma Stove And Iron Works K-181 Series: Aspen LE-1 vs MF Fire Nova 2C
The Kuma Stove And Iron Works K-181 Series: Aspen LE-1 is the cleaner burner: 1.1 g/hr certified particulate emissions versus 1.4 g/hr. They tie on efficiency at 78% HHV. The Kuma Stove And Iron Works K-181 Series: Aspen LE-1 produces more peak heat (29,153 vs 21,009 BTU/h), suiting roughly 850–1,150 sq ft. The MF Fire Nova 2C has the larger firebox (2.33 vs 1.821 cu ft), which generally means longer burns between reloads.
| Kuma Stove And Iron Works K-181 Series: Aspen LE-1 | MF Fire Nova 2C | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Catalytic Stove |
| Certified fuel | Crib Wood | Cord Wood |
| Emission rate | 1.1 g/hr | 1.4 g/hr |
| Efficiency (HHV) | 78 % | 78 % |
| Heat output (low) | 12764 BTU/h | 19012 BTU/h |
| Heat output (high) | 29153 BTU/h | 21009 BTU/h |
| Firebox volume | 1.821 cu ft | 2.33 cu ft |
| Carbon monoxide | 0.45 g/min | 0.515 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 346-23 | 401-25 |
| Covered model numbers | K-181 Series: Aspen LE-1, Tamarack LE-1, Aberdeen LE-1, and Alpine LE-1 | Nova 2C, Nova 2C Tower |
Frequently asked questions
Which burns cleaner, the Kuma Stove And Iron Works K-181 Series: Aspen LE-1 or the MF Fire Nova 2C?
The Kuma Stove And Iron Works K-181 Series: Aspen LE-1: 1.1 g/hr certified particulate emissions versus 1.4 g/hr for the MF Fire Nova 2C.
Are the Kuma Stove And Iron Works K-181 Series: Aspen LE-1 and MF Fire Nova 2C 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.