2100 series (Timberwolf)
Previously certified
EPA lists 2100 series (Timberwolf) under Wolf Steel Ltd. as a previously certified non-catalytic wood stove.
The listed emission rate is 3.9 grams per hour.
EPA does not list an HHV efficiency for this model line.
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 | 3.9 grams per hour |
| HHV efficiency | Not listed |
| Heat output | 11,238–37,580 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.
- 2100 series Timberwolf
Other model lines from this manufacturer
- 1100 series (Napoleon 1100, 1100L, 1100C, 1150, 1101), S1 Previously certified
- 1400 series (Napoleon 1400, 1400L, 1450,1401),S4, 1402 Previously certified
- 2200 series (Timberwolf 2200, 2201) Previously certified
- EPI22 Previously certified
- EPI3 Previously certified
- Napoleon EPI3C, Napoleon EPI3T, Napoleon EPI3TN, Timberwolf TI3C-1, Timberwolf TI3T-1, Timberwolf TI3TN-1 Previously certified
- Napoleon S25, Napoleon S25i, Timberwolf T25, Timberwolf T25i Previously certified
- Napoleon S30, Timberwolf T30 Previously certified
- NPS45 Previously certified
- NZ3000H Previously certified
- NZ3000H, TZ3000H Previously certified
- Timberwolf 2100, Ambience AMB9000 (Outlander 15) Previously certified
- Timberwolf 2200, Timberwolf EPI22, Napoleon S20, Napoleon S20i, Timberwolf T20, Timberwolf T20i, Ambience 9010 (Outlander 19), Ambience 9100 (Outlander i19) Previously certified
- TPSI35 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
- 100B 90 32 RV — 3.9 grams per hour
- 36-BW-1988 — 3.9 grams per hour
- Blaze King KEJ-1102 — 3.9 grams per hour
- Carraig Mor BCMUS — 3.9 grams per hour
- CBS-41 — 3.9 grams per hour
HHV efficiency
EPA does not list an HHV efficiency to compare, or no other line lists one.
Heat output
- Regency F2400M, F2400, I2400, I2400M, S2400, HI300, CC75, H400, CS2400 Medium Wood Stove and Insert — 12,000–36,800 BTU/hr
- I2450M, HI2450M — 14,169–34,612 BTU/hr
- Arrow 18 — 14,500–34,400 BTU/hr
- Blaze King King Catalytic KEJ 1107 — 9,100–39,800 BTU/hr
- S-22 and S-22I — 12,000–36,900 BTU/hr