Enviro – Maxx-1
Currently certified
EPA lists Enviro – Maxx-1 under Sherwood Industries, Ltd. as a currently certified pellet stove.
EPA lists 2 rows for this model line, with emission rates of 1.5 grams per hour and 1.9 grams per hour.
The listed HHV efficiency is 77 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 | Row 2 |
|---|---|---|
| Status | Currently certified | Previously certified |
| Type | Pellet Stove | Pellet Stove |
| Subtype | Non-Catalytic Stove | Non-Catalytic Stove |
| Emission | 1.5 grams per hour | 1.9 grams per hour |
| HHV efficiency | 77 percent | 77 percent |
| Heat output | 27,745–67,020 BTU/hr | 12,190–50,627 BTU/hr |
| Firebox | Not applicable | Not applicable |
| CO | 0.24 g/min | 1.14 g/min |
| Certified fuel | Wood Pellets | Wood Pellets |
| Test method | Not listed | Not listed |
| 2020 NSPS | Yes | Yes |
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.
- Enviro – Maxx-1
Other model lines from this manufacturer
- EF2-1, Chatham-1, Davenport-1, Kinderhook-1 Currently certified
- Enviro - Meridian-2, Meridian FPI-2, Meridian Cast Iron-2, Regency Greenfire GF55-2, GFI55-2 Currently certified
- Enviro M55-FS-2, Enviro M55C-FS-2, Enviro M55C-FPI-2, FPI GC60-2, and FPI GCI60-2 Currently certified
- Enviro Mini 2, Enviro P3-2 Regency Greenfire GF40-2 Currently certified
- CH-77, CH-84 Previously certified
- EF2, Chatham, Davenport and Kinderhook Previously certified
- EF3, Meridan, Vista Flame 100, Greenfire GF55, GF55FPI Previously certified
- EF5/Enviro P4 Previously certified
- EMPRESS FPI, Milan Previously certified
- Empress FS Previously certified
- Enviro - M55 FS, M55C-FPI, Regency Greenfire – GC60, GCI60 Previously certified
- Enviro – Meridian-1, Meridian FPI, Meridian Cast Iron, Regency Greenfire – GF55, GFI55 Previously certified
- Enviro – Mini, P3, Regency Greenfire – GF40 Previously certified
- Enviro 1200, 1200I, Vista Flame 1200, 1200I, 1200 Venice (Kodiak, Boston, Cabello) Previously certified
- Enviro 1700I, 1700 and Vista Flame 1700I, 1700, 1700 Venice (Kodiak, Boston, Cabello) Previously certified
- Enviro Fire 1000FS and Vista Flame 1000FS, 1000 Previously certified
- Enviro M55, M55C, VF55, Greenfire/Hampton GC60 Previously certified
- Greenfire GF55, GFI55 Previously certified
- Maxx-B Previously certified
- Mini (P3)Greenfire GF40 Previously certified
- Vista Flame 1600 FS, 1600 FPI, Envirofire 1600 FS, 1600 FPI Previously certified
- Vista Flame 2100 FS, Envirofire 2100 FS Previously certified
- Vista Flame Envirofire 1000 Previously certified
- Vista Flame Envirofire 1500 Previously certified
- Vista Flame Envirofire 2000 Previously certified
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Pellet Stove model lines that list it. Ties are ordered by model name.
Emission
- 25-CBPAH, 55-SHPCBPAH, 55-TRPCBPAH — 1.5 grams per hour
- 509-1 Optimum — 1.5 grams per hour
- 6039, 6039 T, 6039 HF, 6039 TP, 6041, SP6000 — 1.5 grams per hour
- Breckwell SP1000, Big E — 1.5 grams per hour
- ComfortBilt HP54 — 1.5 grams per hour
HHV efficiency
- 65R Series: Eco-65R, Blue Ridge P120 — 77 percent
- Breckwell SP24E (Blazer), SP24iE (Blazer) — 77 percent
- Eclipse-P II — 77 percent
- EF2-1, Chatham-1, Davenport-1, Kinderhook-1 — 77 percent
- Harman Absolute 43-C — 77 percent
Heat output
- Caddy, Alterna — 10,100–71,000 BTU/hr
- Giulia Air, Valentina Air N — 26,918–48,694 BTU/hr
- Harman P68-C — 15,756–52,664 BTU/hr
- Harman P68 — 11,800–53,500 BTU/hr
- Harman P61-C — 17,085–46,831 BTU/hr
Sherwood Industries, Ltd. hub · EPA Certified Wood Heater Database