RSF 3600 Series: Pearl 3600, Perle 3600, Focus 3600, Focus 3600i, Focus 3600s
Previously certified
EPA lists RSF 3600 Series: Pearl 3600, Perle 3600, Focus 3600, Focus 3600i, Focus 3600s under RSF / Industrial Chimney Company, Incorporated as a previously certified non-catalytic wood stove.
The listed emission rate is 1.5 grams per hour.
The listed HHV efficiency is 74 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Wood Stove |
| Subtype | Non-Catalytic Stove |
| Emission | 1.5 grams per hour |
| HHV efficiency | 74 percent |
| Heat output | 13,138–44,135 BTU/hr |
| Firebox | 1.57 cu ft |
| CO | 1.29 g/min |
| Certified fuel | Cord 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.
- RSF 3600 Series
- Pearl 3600
- Perle 3600
- Focus 3600
- Focus 3600i
- Focus 3600s
Other model lines from this manufacturer
- Focus 320 SBR, Onyx SBR Currently certified
- OPEL PLUS Series: Opel+ 2C, Opel+ 3C, Opel+ 4C, Opel+ Keystone, Opel+ Keystone-AK 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 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
- 2.1 Series (Destination 1.9, Matrix 1900, CW2100, Green Mountain Insert 50, HEI90, Archway 1500, Blue Ridge 150-I) — 1.5 grams per hour
- 7110 C — 1.5 grams per hour
- Astra 32, Elegance 40 — 1.5 grams per hour
- DutchWest Medium 2478 — 1.5 grams per hour
- DutchWest Medium 2478 — 1.5 grams per hour
HHV efficiency
- 1.4 Series (Osburn 950, Escape 1200, Gateway 1400, Solution 1.4, Spark II, Fox, Déco Nano, S250, Harmony 1.4, HES140, Blue Ridge 100) — 74 percent
- 1.4R Series: Osburn 950 N, Escape 1200 N, Gateway 1400 N, Solution 1.4 N, Spark II N, Fox N, Deco Nano N, S250 N, HES140 N, Blue Ridge 100 N, SP1400 N, SL1400 N — 74 percent
- 15-SSW01, 50-SHSSW01, 50-TRSSW01, 15-W03, 50-SHW03, 50-TRW03 — 74 percent
- 210 Ideal Steel Hybrid — 74 percent
- 30 Compact, 30 Compact-H, 30 Compact-one — 74 percent
Heat output
- 81/85 — 11,900–45,400 BTU/hr
- Converter C-30, C-35 — 8,000–49,200 BTU/hr
- Quadra-Fire Isle Royale — 10,400–46,800 BTU/hr
- XTD1.1, XE-1000, Solution 1.6 — 9,900–47,300 BTU/hr
- Summit LE, Summit Classic LE, Alderlea T6 LE, Summit Insert LE — 16,102–41,275 BTU/hr
RSF / Industrial Chimney Company, Incorporated hub · EPA Certified Wood Heater Database