OPEL PLUS Series: Opel+ 2C, Opel+ 3C, Opel+ 4C, Opel+ Keystone, Opel+ Keystone-AK
Currently certified
EPA lists OPEL PLUS Series: Opel+ 2C, Opel+ 3C, Opel+ 4C, Opel+ Keystone, Opel+ Keystone-AK under RSF / Industrial Chimney Company, Incorporated as a currently certified catalytic wood stove.
The listed emission rate is 0.7 grams per hour.
The listed HHV efficiency is 70 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Currently certified |
| Type | Wood Stove |
| Subtype | Catalytic Stove |
| Emission | 0.7 grams per hour |
| HHV efficiency | 70 percent |
| Heat output | 11,723–27,034 BTU/hr |
| Firebox | 2.32 cu ft |
| CO | 0.58 g/min |
| Certified fuel | Crib Wood |
| 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.
- OPEL PLUS Series
- Opel+ 2C
- Opel+ 3C
- Opel+ 4C
- Opel+ Keystone
- Opel+ Keystone-AK
Other model lines from this manufacturer
- Focus 320 SBR, Onyx SBR Currently certified
- RSF 3600B Series: Pearl 3600B, Perle 3600B, Focus 3600B, Focus 3600Bi Currently certified
- Delta Fusion Previously certified
- ONYX AP Previously certified
- ONYX, Focus 320 Previously certified
- Opel 2000C, OPEL AP Previously certified
- RSF 3600 Series: Pearl 3600, Perle 3600, Focus 3600, Focus 3600i, Focus 3600s Previously certified
- RSF Focus 320+; Onyx2+ Previously certified
- RSF Opel2C, Opel3C, Opel4C Previously certified
- TOPAZ/CHAEMELON (With Fan), FOCUS 250, PEARL/PERLE Previously certified
- TOPAZ/CHAMELEON (Without Fan), FOCUS 250, PEARL/PERLE Previously certified
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Wood Stove model lines that list it. Ties are ordered by model name.
Emission
- 2.3H Series: Archway 2300 H, FW2900 H, Gateway 2300 H, Green Mountain Insert 70 (8451), Escape 1800 H, Inspire 2000 H, Inspire 2000-I H, Matrix H, Escape 1800-I H, Osburn 2000 H, Osburn 2000-I H, Harmony 2.3 H, Solution 2.3 H, Solution 2.3-I H, CW2900 H, Destination 2.3 H, Destination 2.3-I H, Matrix-I H, HES240 H, HEI240H, Heritage H, Deco Alto H, Blue Ridge 300P H, Blue Ridge 300L H, Blue Ridge 00-I H, Origin 2000 H, Origin 2000-I H, Evasion 2.3 H, Evasion 2.3-I H — 0.7 grams per hour
- Encore 1450 N/C — 0.7 grams per hour
- Ideal Steel Hybrid 210b — 0.7 grams per hour
- Q-Tee II USA Series: Q-Tee II USA, Q-Tee II Classic USA, Q-Tee II C USA, Q-Tee II C Classic USA, Q-Tee II C SST USA, Q-Tee II C SST Classic USA, Q-Tee Insert USA, Q-Tee Insert Classic USA — 0.7 grams per hour
- K-180 Series Aspen LE, Tamarack LE, Aberdeen LE, Alpine LE — 0.72 grams per hour
HHV efficiency
- 1.7 Series - Archway 1700, Gateway 1700, Columbia II, Savannah II, Deco II, HEI170, HES170, FW2800 — 70 percent
- 1.7 Series - Blackcomb II, Harmony 1.7, HEI170, HES170, Solution 1.7, Osburn 1700, Inspire 1700, Escape 1500, Escape 1500-I, Solution 1.7-I, Destination 1.7-I, Osburn 1700-I, Matrix 1700-I, Inspire 1700-I — 70 percent
- 15-SSW02,50-SHSSW02, and 50-TRSSW02 — 70 percent
- 21NC — 70 percent
- 30-H — 70 percent
Heat output
- F1500, I1500 — 14,244–24,488 BTU/hr
- Blaze King Royal Heir RHT-2200, 2250, RHT-2100 — 7,700–31,100 BTU/hr
- Princess 35 PE35 — 9,200–29,600 BTU/hr
- Gabo Pina Vola — 12,000–26,700 BTU/hr
- Heatilator ECO ADV WS22 — 11,700–27,000 BTU/hr
RSF / Industrial Chimney Company, Incorporated hub · EPA Certified Wood Heater Database