Echo-Comstock II
Currently certified
EPA lists Echo-Comstock II under Thelin Company Inc. as a currently certified pellet stove.
The listed emission rate is 0.88 grams per hour.
The listed HHV efficiency is 75 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Currently certified |
| Type | Pellet Stove |
| Subtype | Non-Catalytic Stove |
| Emission | 0.88 grams per hour |
| HHV efficiency | 75 percent |
| Heat output | 16,754–26,783 BTU/hr |
| Firebox | Not applicable |
| CO | 0.15 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.
- Echo-Comstock II
Other model lines from this manufacturer
- Providence Currently certified
- Thelin Gnome Currently certified
- Thelin Parlour 3000 Currently certified
- Thelin Parlour T-4000 Currently certified
- Gnome Pellet Stove, Gnome 1.2 Previously certified
- Providence, Providence Signature Previously certified
- Thelin T-4000 Previously certified
- Tiburon 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
- Enviro – Meridian-1, Meridian FPI, Meridian Cast Iron and Regency Greenfire – GF55, GFI55 — 0.89 grams per hour
- Enviro – Meridian-1, Meridian FPI, Meridian Cast Iron, Regency Greenfire – GF55, GFI55 — 0.89 grams per hour
- Fox Fire — 0.89 grams per hour
- P163, P163 D, and P163 T — 0.89 grams per hour
- HR-2 — 0.9 grams per hour
HHV efficiency
- 5660, AP5660E, US5660, VG5660, SP566, 5660-W, AP5660-W, US5660-W, VG5660-W, 5660-KIT, AP5660-KIT, US5660-KIT, VG5660-KIT, CGPS1525 — 75 percent
- 5790E, AP5790E, VG5790E, KP5790E, KP5790-W, US5790E, CGPS2200, DH4800, BHPS48 — 75 percent
- Breckwell and Golden Eagle: SP22E, SP22Ei, 5040E and 5040Ei — 75 percent
- Breckwell SP2047 (Traverse), GW7400, ARGO500 — 75 percent
- Enviro - Meridian-2, Meridian FPI-2, Meridian Cast Iron-2, Regency Greenfire GF55-2, GFI55-2 — 75 percent
Heat output
- Monica / Francesca — 8,500–35,000 BTU/hr
- AGP PS — 8,959–34,738 BTU/hr
- Schrader Pelletmiser 905-P — 11,000–32,700 BTU/hr
- Heatilator CAB50/PS50 — 11,900–31,400 BTU/hr
- 5780-E, AP5780-E, VG5780-E, SP5780-E, SP58-E — 8,215–35,041 BTU/hr
Thelin Company Inc. hub · EPA Certified Wood Heater Database