HY-C Company SF1000E
HY-C Company SF1000E is a non-catalytic forced-air furnace from HY-C Company with 70% HHV efficiency and a 15,727–46,435 BTU/h output range (previously certified, no longer in production).
Previously certified (out of production). This model appears in the EPA Certified Wood Heater Database but is no longer on the current certified list, which usually means it is no longer manufactured. The specifications below are its certified figures, kept for reference and for owners of installed units. Browse currently certified heaters for models sold new today.
| Appliance type | forced-air-furnace |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Cord Wood |
| Covered model numbers | SF1000E, FC1000E, X1020, L1020 |
| Efficiency (HHV) | 70 % |
|---|
| Heat output (low) | 15727 BTU/h |
|---|---|
| Heat output (high) | 46435 BTU/h |
| Firebox volume | 3.4 cu ft |
| Carbon monoxide | 1.73 g/min |
|---|
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | No |
| EPA certification number | 22FAF-20 |
What space does the HY-C Company SF1000E suit?
- The 3.4 cu ft firebox puts it in the large-home, overnight-burn class.
- Certified burning Cord Wood — the test fuel closest to real-world firewood.
Similar forced-air furnaces
- United States Stove Company 8500 and SP8500
- Fire Chief Industries/Shelter Furnace/HY-C Company Fire Chief FC1000 and Shelter SF1000
- Stove Builder International Caddy
- United States Stove Company 1330E
- Stove Builder International SR-3.6 Series Heat Commander
- Stove Builder International Max Caddy and HeatPro
Frequently asked questions
Is the HY-C Company SF1000E EPA certified?
The HY-C Company SF1000E holds EPA certification number 22FAF-20 but is no longer on the current certified list — it is previously certified, which usually means the model is out of production. Already-installed units are unaffected by that status in most jurisdictions.
Does the HY-C Company SF1000E qualify for a federal tax credit?
No — the federal 25C credit for biomass stoves was terminated for property placed in service after December 31, 2025. The HY-C Company SF1000E's certified efficiency is 70% HHV, which did not meet the credit's ≥75% HHV threshold while it existed. State and local incentive programs may still apply — check your state energy office and air district.
Sources
- cfpub.epa.gov (retrieved 2026-07-23)