509-1 Optimum
Previously certified
EPA lists 509-1 Optimum under 509 Fabrications, Inc. as a previously certified pellet stove.
The listed emission rate is 1.5 grams per hour.
The listed HHV efficiency is 79 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 | 1.5 grams per hour |
| HHV efficiency | 79 percent |
| Heat output | 19,573–32,183 BTU/hr |
| Firebox | Not applicable |
| CO | 1.6 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.
- 509-1 Optimum
Other model lines from this manufacturer
- Chinook VCV 2.1.5 Currently certified
- Mini Me Currently 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
- 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
- Deerfield II — 1.5 grams per hour
HHV efficiency
- 25-SSP01,25-SSP01S,55-SHSSP01,55SHSSP01S, 55-TRSSP01, and 55TRSSP01S — 79 percent
- Element-P II — 79 percent
- FBX S, FBX S+, FBX T, FBX R, FBX BUMP, ZEFIRO — 79 percent
- G2-ABF66WTS, G2-CBF66WTS, G2-HBF66WTS, G2-JBF66WTS, G2-NBF66WTS — 79 percent
- Harman P61-C — 79 percent
Heat output
- G2-A130WTS, G2-C130WTS, G2-H130WTS, G2-J130WTS, G2-N130WTS — 8,950–42,843 BTU/hr
- HP50S Comfortbilt — 13,400–38,600 BTU/hr
- Harman P43-C — 18,783–33,252 BTU/hr
- P163, P163 D, and P163 T — 12,778–38,656 BTU/hr
- Quadra-Fire TREKKER-MBK, TREKKER-PMH, TREKKER-TWL TREKKERI-MBK, TREKKERI-PMH, TREKKERI-TWL (formerly the Quadra Fire Mount Vernon E2-C, Quadra Fire Mount Vernon E2-C Insert) — 12,682–39,428 BTU/hr
509 Fabrications, Inc. hub · EPA Certified Wood Heater Database