Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) vs Kuma Stove And Iron Works K-181 Series: Aspen LE-1
The Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) is the cleaner burner: 1.05 g/hr certified particulate emissions versus 1.1 g/hr. The Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) is the more efficient unit: 80% versus 78% HHV — more heat from every cord. The Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) produces more peak heat (31,092 vs 29,153 BTU/h), suiting roughly 900–1,250 sq ft. The Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) has the larger firebox (1.86 vs 1.821 cu ft), which generally means longer burns between reloads.
| Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) | Kuma Stove And Iron Works K-181 Series: Aspen LE-1 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 1.05 g/hr | 1.1 g/hr |
| Efficiency (HHV) | 80 % | 78 % |
| Heat output (low) | 10786 BTU/h | 12764 BTU/h |
| Heat output (high) | 31092 BTU/h | 29153 BTU/h |
| Firebox volume | 1.86 cu ft | 1.821 cu ft |
| Carbon monoxide | 0.57 g/min | 0.45 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 110-17 | 346-23 |
| Covered model numbers | 20.2 Series: Ashford 20.2 (AF20.2), Chinook 20.2 (CK20.2), Sirocco 20.2 (SC20.2) | K-181 Series: Aspen LE-1, Tamarack LE-1, Aberdeen LE-1, and Alpine LE-1 |
Frequently asked questions
Which burns cleaner, the Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) or the Kuma Stove And Iron Works K-181 Series: Aspen LE-1?
The Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2): 1.05 g/hr certified particulate emissions versus 1.1 g/hr for the Kuma Stove And Iron Works K-181 Series: Aspen LE-1.
Are the Blaze King Industries 20.2 Series: Ashford 20.2 (AF20.2) and Kuma Stove And Iron Works K-181 Series: Aspen LE-1 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.