SR-3.6 Series Heat Commander, Caddy Advanced, Caddy Advanced CR
Previously certified
EPA lists SR-3.6 Series Heat Commander, Caddy Advanced, Caddy Advanced CR under Stove Builder International, Inc. as a previously certified forced-air furnace.
The listed emission rate is 0.1 pounds per million BTU.
The listed HHV efficiency is 77 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Forced Air Furnace |
| Subtype | Non-Catalytic Stove |
| Emission | 0.1 pounds per million BTU |
| HHV efficiency | 77 percent |
| Heat output | 13,297–42,234 BTU/hr |
| Heat output maximum | Not listed |
| Firebox | 3.6 cu ft |
| CO | 1.54 g/min |
| Certified fuel | Cord Wood |
| Test method | Not listed |
| 2020 NSPS | Yes |
| Thermal storage | No |
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.
- SR-3.6 Series Heat Commander
- Caddy Advanced
- Caddy Advanced CR
Other model lines from this manufacturer
- 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) Currently certified
- 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 Currently certified
- 1.7R Series: Blackcomb II, Escape 1500, Deco II, Columbia II, Savannah II, FW2800, Osburn 1700, Inspire 1700, Harmony 1.7, Solution 1.7, Blue Ridge 200P, Blue Ridge 200L, HES170, Gateway 1700, Escape 1500-I, CW2800, Osburn 1700-I, Matrix 1700-I, Inspire 1700-I, Destination 1.7, Solution 1.7-I, Blue Ridge 200-I, HEI170, Archway 1700 Currently certified
- 2.1 Series (Destination 1.9, Matrix 1900, CW2100, Green Mountain Insert 50, HEI90, Archway 1500, Blue Ridge 150-I) Currently certified
- 2.3 Series (Archway 2300, FW2900, Gateway 2300, Green Mountain Insert 70, Escape 1800, Inspire 2000, Inspire 2000-I, Matrix, Escape 1800-I, Osburn 2000, Osburn 2000-I, Harmony 2.3, Solution 2.3, Solution 2.3-I, CW2900, Destination 2.3-I, Matrix-I, HES240, HEI240, Heritage, Deco Alto, Harmony 2.3-I, Blue Ridge 300P, Blue Ridge 300L, and Blue Ridge 300-I) Currently certified
- 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 Currently certified
- 2.5R Series (Solution 2.5 ZC II, Stratford II, FP10 Lafayette II, FP12 Mundo II, HE250R, Destination 2.7, Matrix 2700, FP10 Lafayette IIS, WFP-75 8411, HE275, HE275CF, Green Mountain Insert 90 8460, St. Clair 2500) Currently certified
- 25-CBPAH, 55-SHPCBPAH, 55-TRPCBPAH Currently certified
- 25CAB80, 55-SHPCAB80, 55-TRPCAB80, 25-CAB80S, 55-SHPCAB80S, 55-RPCAB80S Currently certified
- 3.5 Series (Solution 3.5, Osburn 3500, Gateway 3500, Escape 2100, HT-3000, Solution 3.5-I, FW3500, Osburn 3500-I, HES350, Hei350, Blue Ridge 500, Escape 2100-I, CW3500, Blue Ridge 500-I) Currently certified
- 55-SHPCB120, 55-TRPCB120, and 25-CB120 Currently certified
- 65R Series: Eco-65R, Blue Ridge P120 Currently certified
- Bistro Series (Bistro, Gusto, Pyra, 600, HEC240, IW600) Currently certified
- Everest III Series: Everest III, HE325R, Dallaire, St. Clair 3000R, Solution 3.0 ZC Currently certified
- HE350, FP-15-Waterloo, Horizon, Monaco XL, WFP100, FP-15A Waterloo, St. Clair 4300, Solution 4.5 ZC Currently certified
- Heat Commander II, Caddy Advanced CR II, Caddy Advanced II, Caddy Advanced L, FC2500, SF2500 Currently certified
- Model 55 Series (Eco-55, Eco-55 ST, Eco-55 CT, Osburn 250, HEP55, P40) Currently certified
- SR-3.2 Series: St-Louis, Helia, Elevate, Chambly, HEA200 Currently certified
- 1.3 Series (Osburn 900, Pyropak, Rocket, S244, Solution 1.3, S245 Previously certified
- 1.6 Series (XVR-II, Solution 1.6, Soho, Destination 1.6, Savannah, Eldorado, FW2600) Previously certified
- 1.7 Series - Archway 1700, Gateway 1700, Columbia II, Savannah II, Deco II, HEI170, HES170, FW2800 Previously certified
- 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 Previously certified
- 15-W06, 50-SHW06, 50-SHW06L, 50TRW06, 15-W08, 50-SHW08, 50-SHW08L, 50TRW08 Previously certified
- 1600 B-I/Ashley 4600/Forester 4700 Previously certified
- 2.5 Series, Solution 2.5 ZC II, Stratford II, FP10 Lafayette II, FP12 Mundo II, Monaco II, HE250R, Destination 2.7, Matrix 2700, WFP-75 8411, FP10 Lafayette IIS, HE275, HE275CF Previously certified
- 2.5 ZC Series (2008) (Monaco, Stratford, Solution 2.5ZC, FP-10, Lafayette, WFP75, HE250, FP-12 Mundo) Previously certified
- 25-PDVC, 25-PDVCH, 55-SHP10, 55-SHP10L, and 55-TRP10 Previously certified
- 3.1 Series (NG-1800) Previously certified
- 3.3 Series Osburn 3300, Austral III, Myriad III, Legend III, Escape 1900, Black Stag II, Solution 3.3, Gateway 3300, FW3200 Previously certified
- 32-NC, 50-SNC32, 50-TNC32 Previously certified
- 55-SHPCBEP, 55-TRPCBEP, and 25-CBEP Previously certified
- 65 Series Euromax (2014), Eco-65 (2014), and Osburn 7000 (2014) Previously certified
- Apollo, Apollo II Previously certified
- BIO-35MF, Eco-35, FP-35, Hybrid-35MF Previously certified
- BIO-45MF, Eco-45, FP-45, Hybrid-45MF Previously certified
- Caddy Alterna II Previously certified
- Caddy, Alterna Previously certified
- Caddy, Caddy-On, Tundra, Heatmax Previously certified
- Caddy, Heatmax II, Tundra II Previously certified
- Cambridge II, 3000C Previously certified
All model lines on the Stove Builder International, Inc. hub. This page lists 40 of the other 89 lines.
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Forced Air Furnace model lines that list it. Ties are ordered by model name.
Emission
- Vapor Fire 100 (VF100) — 0.1 pounds per million BTU
- AirBilo — 0.11 pounds per million BTU
- Heat Commander II, Caddy Advanced CR II, Caddy Advanced II, Caddy Advanced L, FC2500, SF2500 — 0.09 pounds per million BTU
- Fire Chief FC1000E and Shelter SF1000E — 0.12 pounds per million BTU
- US1520, HB1520, VG1520, WC1520, N35, C2235, SWF1035, SWF1035K, King KWF1520, Comfort Glow CGWF4000, DuraHeat DHWF4000 — 0.12 pounds per million BTU
HHV efficiency
- Caddy, Heatmax II, Tundra II — 77 percent
- Heat Commander II, Caddy Advanced CR II, Caddy Advanced II, Caddy Advanced L, FC2500, SF2500 — 77 percent
- Max Caddy and HeatPro — 77 percent
- 7000 — 76 percent
- Vapor Fire 100 (VF100) — 76 percent
Heat output
- Fire Chief FC1000E and Shelter SF1000E — 20,776–34,536 BTU/hr
- Vapor Fire 100 (VF100) — 21,465–33,691 BTU/hr
- 8500 and SP8500 — 9,001–47,014 BTU/hr
- Caddy, Heatmax II, Tundra II — 12,635–44,857 BTU/hr
- Fire Chief FC1000 and Shelter SF1000 — 16,691–45,000 BTU/hr
Stove Builder International, Inc. hub · EPA Certified Wood Heater Database