EF-2100
Previously certified
EPA lists EF-2100 under Sierra Products, Inc. as a previously certified non-catalytic wood stove.
The listed emission rate is 5.7 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 | 5.7 grams per hour |
| HHV efficiency | Not listed |
| Heat output | 11,000–42,900 BTU/hr |
| Firebox | Not listed |
| CO | Not listed |
| Certified fuel | Not listed |
| 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.
- EF-2100
Other model lines from this manufacturer
- EasyFire Pellet Stove Currently certified
- S2300 FS, S2300 PB Currently certified
- S8000II TEC Currently certified
- Ambassador 4700TE Previously certified
- Cricket 5300 Previously certified
- Cricket MHCR 5200 Previously certified
- Evolution 7000TE,7000C Previously certified
- Evolution 8000TE Previously certified
- Sierra Ambassador 4700 TEC Previously certified
- Sierra Classic 1500T Previously certified
- Sierra Evolution 8000 TEC Previously certified
- Sweet Home AFX-HT, AFI-HT Previously certified
- Sweet Home Catalytic Fir AK-18 Previously certified
- Sweet Home Solitaire PFA 2000 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
- 2200 — 5.7 grams per hour
- HE40 — 5.7 grams per hour
- Legend, Baltic, Austral, Myriad, Azimuth, 2300, Magnolia 2015 — 5.7 grams per hour
- New Generation NG 1800/Magnolia 2015 — 5.7 grams per hour
- OPUS — 5.7 grams per hour
HHV efficiency
EPA does not list an HHV efficiency to compare, or no other line lists one.
Heat output
- Alpine — 11,500–42,400 BTU/hr
- Energy King Legacy 950 — 11,700–42,200 BTU/hr
- HF577DU — 10,800–43,100 BTU/hr
- High Valley 2000, Craft Stove 2000 — 10,800–43,100 BTU/hr
- OV-21 — 11,700–42,200 BTU/hr
Sierra Products, Inc. hub · EPA Certified Wood Heater Database