Aspen
Previously certified
EPA lists Aspen under Kuma Stove And Iron Works as a previously certified non-catalytic wood stove.
The listed emission rate is 4.1 grams per hour.
The listed HHV efficiency is 72 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Wood Stove |
| Subtype | Non-Catalytic Stove |
| Emission | 4.1 grams per hour |
| HHV efficiency | 72 percent |
| Heat output | 14,000–27,700 BTU/hr |
| Firebox | Not listed |
| CO | Not listed |
| Certified fuel | Crib Wood |
| Test method | Not listed |
| 2020 NSPS | No |
Retail names in the model line
These are the names split from EPA's model cell. They are aliases for this line, not separate listings.
- Aspen
Other model lines from this manufacturer
- K-181 Series: Aspen LE-1, Tamarack LE-1, Aberdeen LE-1, and Alpine LE-1 Currently certified
- K-251 Series: Ashwood LE-1, Wood Classic LE-1, Cambridge LE-1, Cascade LE-1 Currently certified
- Ashwood Previously certified
- K-100, K-300, K-400 Previously certified
- K-180 Series Aspen LE, Tamarack LE, Aberdeen LE, Alpine LE Previously certified
- K-250 Series Ashwood LE, Wood Classic LE, Cambridge LE, Cascade LE Previously certified
- K100/300/400 SEQUOIA Previously certified
- KTAM Previously certified
- Scott HT-1 (Tamarack) Previously certified
- Wood Classic HT-2 Previously certified
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Wood Stove model lines that list it. Ties are ordered by model name.
Emission
- 1100 series (Napoleon 1100, 1100L, 1100C, 1150, 1101), S1 — 4.1 grams per hour
- 3055 — 4.1 grams per hour
- 33 Elite — 4.1 grams per hour
- 6100 Series — 4.1 grams per hour
- Ashling — 4.1 grams per hour
HHV efficiency
- 15-W06, 50-SHW06, 50-SHW06L, 50TRW06, 15-W08, 50-SHW08, 50-SHW08L, 50TRW08 — 72 percent
- 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) — 72 percent
- 36 Elite — 72 percent
- 50TL — 72 percent
- Answer — 72 percent
Heat output
- Carraig Mor BCMUS — 12,900–28,800 BTU/hr
- Astra 32, Elegance 40 — 12,430–29,274 BTU/hr
- Flush Wood — 12,084–29,605 BTU/hr
- Spartherm S 600 Insert, Spartherm S 600 ZC, Spartherm S 600 Module — 20,345–21,299 BTU/hr
- Ashling — 12,000–29,800 BTU/hr
Kuma Stove And Iron Works hub · EPA Certified Wood Heater Database