Enviro - M55 FS, M55C-FPI, Regency Greenfire – GC60, GCI60
Previously certified
EPA lists Enviro - M55 FS, M55C-FPI, Regency Greenfire – GC60, GCI60 under Sherwood Industries, Ltd. as a previously certified pellet stove.
The listed emission rate is 1.8 grams per hour.
The listed HHV efficiency is 60 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Pellet Stove |
| Subtype | Non-Catalytic Stove |
| Emission | 1.8 grams per hour |
| HHV efficiency | 60 percent |
| Heat output | 4,383–23,542 BTU/hr |
| Firebox | Not applicable |
| CO | 0.3 g/min |
| Certified fuel | Wood Pellets |
| Test method | Not listed |
| 2020 NSPS | 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 - M55 FS
- M55C-FPI
- Regency Greenfire – GC60
- GCI60
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 – Maxx-1 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 – 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-IP, 55-SHPIP and 55-TRPIP — 1.8 grams per hour
- 4840 — 1.8 grams per hour
- Absolute 43 — 1.8 grams per hour
- AGP PS — 1.8 grams per hour
- BIO-35MF, Eco-35, FP-35, Hybrid-35MF — 1.8 grams per hour
HHV efficiency
- Jessica Natural, Veronica Natural — 61 percent
- 5660E, AP5660, AP5660L, AP5660PE, DNMP566 — 62 percent
- 6041, 6041I, SP6000 — 58 percent
- Americas Heat B-100 — 58 percent
- EF2, Chatham, Davenport and Kinderhook — 58 percent
Heat output
- QCPS - 28000 — 13,100–14,800 BTU/hr
- HTP Standard — 8,419–19,455 BTU/hr
- Americas Heat B-100 — 9,098–18,773 BTU/hr
- HTP Bay — 7,181–20,846 BTU/hr
- Thelin Gnome — 11,523–16,532 BTU/hr
Sherwood Industries, Ltd. hub · EPA Certified Wood Heater Database