Kuma Stove And Iron Works K-181 Series: Aspen LE-1 vs Stove Builder International 2.3 Series (Archway 2300
The Kuma Stove And Iron Works K-181 Series: Aspen LE-1 is the cleaner burner: 1.1 g/hr certified particulate emissions versus 2.3 g/hr. The Kuma Stove And Iron Works K-181 Series: Aspen LE-1 is the more efficient unit: 78% versus 72% HHV — more heat from every cord. The Stove Builder International 2.3 Series (Archway 2300 produces more peak heat (44,500 vs 29,153 BTU/h), suiting roughly 1,250–1,800 sq ft. The Stove Builder International 2.3 Series (Archway 2300 has the larger firebox (1.95 vs 1.821 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Kuma Stove And Iron Works K-181 Series: Aspen LE-1 is a catalytic stove and the Stove Builder International 2.3 Series (Archway 2300 a non-catalytic stove — see the catalytic vs non-catalytic guide for what that means day to day.
| Kuma Stove And Iron Works K-181 Series: Aspen LE-1 | Stove Builder International 2.3 Series (Archway 2300 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Non-Catalytic Stove |
| Certified fuel | Crib Wood | Cord Wood |
| Emission rate | 1.1 g/hr | 2.3 g/hr |
| Efficiency (HHV) | 78 % | 72 % |
| Heat output (low) | 12764 BTU/h | 14200 BTU/h |
| Heat output (high) | 29153 BTU/h | 44500 BTU/h |
| Firebox volume | 1.821 cu ft | 1.95 cu ft |
| Carbon monoxide | 0.45 g/min | 1.1 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | No |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 346-23 | 101-17 |
| Covered model numbers | K-181 Series: Aspen LE-1, Tamarack LE-1, Aberdeen LE-1, and Alpine LE-1 | 2.3 Series (Archway 2300, FW2900, Gateway 2300, Green Mountain Insert 70, Escape 1800, Inspire 2000, Inspire 2000-I, Matrix, Escape 1800-I, Osburn 2000, Osburn 2000-I, Harmony 2.3, Solution 2.3, Solution 2.3-I, CW2900, Destination 2.3-I, Matrix-I, HES240, HEI240, Heritage, Deco Alto, Harmony 2.3-I, Blue Ridge 300P, Blue Ridge 300L, and Blue Ridge 300-I) |
Frequently asked questions
Which burns cleaner, the Kuma Stove And Iron Works K-181 Series: Aspen LE-1 or the Stove Builder International 2.3 Series (Archway 2300?
The Kuma Stove And Iron Works K-181 Series: Aspen LE-1: 1.1 g/hr certified particulate emissions versus 2.3 g/hr for the Stove Builder International 2.3 Series (Archway 2300.
Are the Kuma Stove And Iron Works K-181 Series: Aspen LE-1 and Stove Builder International 2.3 Series (Archway 2300 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.