Enviro
EPA does not use Enviro as the manufacturer name on these rows.
14 model lines have Enviro in the EPA text, and 4 of them are currently certified.
EPA lists those lines under Sherwood Industries, Ltd.; Piney Manufacturing; Fireplace Products International Limited.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
Included only where the model text contains Enviro as a whole word. Envirofire and Environmentalist do not match.
Evidence used for this hub: Model text under Sherwood Industries, Ltd. and Fireplace Products International Limited contains Enviro.
Currently certified
| Model line | EPA manufacturer | Status | Emission (g/hr) | HHV efficiency | Heat output | Firebox | Fuel |
|---|---|---|---|---|---|---|---|
| Enviro Mini 2, Enviro P3-2 Regency Greenfire GF40-2 | Sherwood Industries, Ltd. | Currently certified | 0.54 | 80% | 6,881–23,892 BTU/hr | Not applicable | Wood Pellets |
| Enviro – Maxx-1 | Sherwood Industries, Ltd. | Currently certified | 1.5 | 77% | 27,745–67,020 BTU/hr | Not applicable | Wood Pellets |
| Enviro - Meridian-2, Meridian FPI-2, Meridian Cast Iron-2, Regency Greenfire GF55-2, GFI55-2 | Sherwood Industries, Ltd. | Currently certified | 1.8 | 75% | 7,751–32,739 BTU/hr | Not applicable | Wood Pellets |
| Enviro M55-FS-2, Enviro M55C-FS-2, Enviro M55C-FPI-2, FPI GC60-2, and FPI GCI60-2 | Sherwood Industries, Ltd. | Currently certified | 1.9 | 78% | 7,817–38,437 BTU/hr | Not listed | Not listed |
Previously certified
| Model line | EPA manufacturer | Status | Emission (lb/mmBTU) | HHV efficiency | Heat output | Firebox | Fuel |
|---|---|---|---|---|---|---|---|
| ENVIRO CHIP-500 | Piney Manufacturing | Previously certified | 0.19 | 73% | 280,000 BTU/hr maximum | Not listed | Cord Wood |
| Enviro – Mini, P3, Regency Greenfire – GF40 | Sherwood Industries, Ltd. | Previously certified | 0.48 | 66% | 6,447–19,996 BTU/hr | Not applicable | Wood Pellets |
| Enviro – Meridian-1, Meridian FPI, Meridian Cast Iron and Regency Greenfire – GF55, GFI55 | Fireplace Products International Limited | Previously certified | 0.89 | 70% | 8,894–23,765 BTU/hr | Not applicable | Wood Pellets |
| Enviro – Meridian-1, Meridian FPI, Meridian Cast Iron, Regency Greenfire – GF55, GFI55 | Sherwood Industries, Ltd. | Previously certified | 0.89 | 70% | 8,894–23,765 BTU/hr | Not applicable | Wood Pellets |
| Enviro M55, M55C, VF55, Greenfire/Hampton GC60 | Sherwood Industries, Ltd. | Previously certified | 1 | Not listed | 9,300–45,500 BTU/hr | Not applicable | Wood Pellets |
| EF5/Enviro P4 | Sherwood Industries, Ltd. | Previously certified | 1.3 | Not listed | 8,200–22,900 BTU/hr | Not applicable | Wood Pellets |
| Enviro - M55 FS, M55C-FPI, Regency Greenfire – GC60, GCI60 | Sherwood Industries, Ltd. | Previously certified | 1.8 | 60% | 4,383–23,542 BTU/hr | Not applicable | Wood Pellets |
| Enviro 1200, 1200I, Vista Flame 1200, 1200I, 1200 Venice (Kodiak, Boston, Cabello) | Sherwood Industries, Ltd. | Previously certified | 3.4 | 72% | 11,500–34,200 BTU/hr | Not listed | Crib Wood |
| Enviro Fire 1000FS and Vista Flame 1000FS, 1000 | Sherwood Industries, Ltd. | Previously certified | 4.1 | Not listed | 11,700–32,700 BTU/hr | Not listed | Crib Wood |
| Enviro 1700I, 1700 and Vista Flame 1700I, 1700, 1700 Venice (Kodiak, Boston, Cabello) | Sherwood Industries, Ltd. | Previously certified | 4.5 | 75% | 9,400–31,800 BTU/hr | Not listed | Crib Wood |