Forced-air furnaces in the EPA list
EPA lists 27 forced-air furnace rows, and 6 of those rows are currently certified.
The EPA type is Forced Air Furnace. The table shows the certified fuel on each model line, including cord wood and wood pellets.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
Currently certified
| Model line | EPA manufacturer | Status | Emission (lb/mmBTU) | HHV efficiency | Heat output | Firebox | Fuel |
|---|---|---|---|---|---|---|---|
| AutoPellet Air 28kW | Maine Energy Systems, LLC | Currently certified | 0.06 | 89% | 45,600–98,472 BTU/hr | Not applicable | Wood Pellets |
| Heat Commander II, Caddy Advanced CR II, Caddy Advanced II, Caddy Advanced L, FC2500, SF2500 | Stove Builder International, Inc. | Currently certified | 0.09 | 77% | 19,851–64,073 BTU/hr | 3.6 cu ft | Cord Wood |
| Vapor Fire 100 (VF100) | Lamppa Manufacturing, Inc. | Currently certified | 0.1 | 76% | 21,465–33,691 BTU/hr | 3.9 cu ft | Cord Wood |
| AirBilo | LS Bilodeau Inc. | Currently certified | 0.11 | 74% | 19,258–64,412 BTU/hr | 3.47 cu ft | Cord Wood |
| US1520, HB1520, VG1520, WC1520, N35, C2235, SWF1035, SWF1035K, King KWF1520, Comfort Glow CGWF4000, DuraHeat DHWF4000 | United States Stove Company | Currently certified | 0.12 | 70% | 15,997–53,042 BTU/hr | 3.95 cu ft | Cord Wood |
| AirBilo Plus | LS Bilodeau Inc. | Currently certified | 0.13 | 75% | 24,748–88,496 BTU/hr | 5.23 cu ft | Cord Wood |
Previously certified
| Model line | EPA manufacturer | Status | Emission (lb/mmBTU) | HHV efficiency | Heat output | Firebox | Fuel |
|---|---|---|---|---|---|---|---|
| Autopellet Air | Maine Energy Systems, LLC | Previously certified | 0.06 | 89% | 29,509–92,178 BTU/hr | Not applicable | Wood Pellets |
| SR-3.6 Series Heat Commander, Caddy Advanced, Caddy Advanced CR | Stove Builder International, Inc. | Previously certified | 0.1 | 77% | 13,297–42,234 BTU/hr | 3.6 cu ft | Cord Wood |
| Fire Chief FC1000E and Shelter SF1000E | HY-C Company, LLC | Previously certified | 0.12 | 52% | 20,776–34,536 BTU/hr | Not listed | Cord Wood |
| SF1000E, FC1000E, X1020, L1020 | HY-C Company, LLC | Previously certified | 0.14 | 70% | 15,727–46,435 BTU/hr | 3.4 cu ft | Cord Wood |
| Fire Chief FC1000 and Shelter SF1000 | Fire Chief Industries/Shelter Furnace/HY-C Company | Previously certified | 0.19 | 69% | 16,691–45,000 BTU/hr | Not listed | Cord Wood |
| 620-9 and 620-10 | AC Component Specialists | Previously certified | 0.2 | 65% | 37,722–112,434 BTU/hr | Not applicable | Wood Pellets |
| Fire Chief FC1700, FC1900 and Shelter Furnace SF3100, SF4200 | Fire Chief Industries/Shelter Furnace/HY-C Company | Previously certified | 0.26 | 64% | 25,586–67,337 BTU/hr | Not listed | Cord Wood |
| 1660E, AF1660E, CF1660E, SF1660E, BK1660E, NM1660E, GE1660E, CH1660E, VG1660E, HC1660E, and HB1660E | United States Stove Company | Previously certified | 0.3 | 62% | 72,455–185,536 BTU/hr | Not listed | Cord Wood |
| 7700 | United States Stove Company | Previously certified | 0.36 | 74% | 20,330–61,900 BTU/hr | Not listed | Crib Wood |
| Fire Chief FC1500 and Shelter Furnace SF2600 | Fire Chief Industries/Shelter Furnace/HY-C Company | Previously certified | 0.37 | 63% | 23,905–74,178 BTU/hr | Not listed | Cord Wood |
| 1400E, 1440E, AF1440E, CF1440E, BK1440E, NM1440E, GE1440E, CH1440E, VG1440E, HC1440E, HB1440E, VG1501E, 1551E, AF1500E | United States Stove Company | Previously certified | 0.39 | 63% | 18,888–56,399 BTU/hr | Not listed | Cord Wood |
| AF700 and CF700M | United States Stove Company | Previously certified | 0.41 | 71% | 20,568–64,116 BTU/hr | Not listed | Cord Wood |
| 7000 | United States Stove Company | Previously certified | 0.42 | 76% | 22,177–72,449 BTU/hr | Not listed | Crib Wood |
| Caddy Alterna II | Stove Builder International, Inc. | Previously certified | 0.44 | 69% | 22,537–64,737 BTU/hr | Not applicable | Wood Pellets |
| 1330E, AF1330E, CF1330E, BK1330E, NM1330E, GE1330E, CH1330E, VG1330E, HC1330E, HB1330E, VG1301E, 1331E, AF1300E | United States Stove Company | Previously certified | 0.51 | 33% | 14,917–48,184 BTU/hr | Not listed | Cord Wood |
| 8500 and SP8500 | United States Stove Company | Previously certified | 0.53 | 48% | 9,001–47,014 BTU/hr | Not applicable | Wood Pellets |
| 1660EFE, AF1660EFE, CF1660EFE, NM1660EFE, VG1660EFE, HB1660EFE | United States Stove Company | Previously certified | 0.59 | 58% | 27,875–73,849 BTU/hr | Not listed | Cord Wood |
| Caddy, Heatmax II, Tundra II | Stove Builder International, Inc. | Previously certified | 0.65 | 77% | 12,635–44,857 BTU/hr | Not listed | Cord Wood |
| 28-4000, 50-SHW40, and 50-TRW40 | Englands Stove Works, Inc. | Previously certified | 0.73 | 72% | 11,665–31,373 BTU/hr | Not listed | Cord Wood |
| Max Caddy and HeatPro | Stove Builder International, Inc. | Previously certified | 0.75 | 77% | 15,112–51,203 BTU/hr | Not listed | Cord Wood |
| Mini-Caddy & Heatpack | Stove Builder International, Inc. | Previously certified | 0.84 | 74% | 11,319–37,053 BTU/hr | Not listed | Cord Wood |
Hydronic heaters are on the hydronic list.