RSF / Industrial Chimney Company, Incorporated Delta Fusion
RSF / Industrial Chimney Company, Incorporated Delta Fusion is a non-catalytic wood stove from RSF / Industrial Chimney Company, Incorporated certified at 1.3 g/hr particulate emissions with 60% HHV efficiency and a 33,721–34,057 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 | wood-stove |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Crib Wood |
| Covered model numbers | Delta Fusion |
| Emission rate | 1.3 g/hr |
|---|---|
| Carbon monoxide | 2.38 g/min |
| Efficiency (HHV) | 60 % |
|---|
| Heat output (low) | 33721 BTU/h |
|---|---|
| Heat output (high) | 34057 BTU/h |
| Firebox volume | 4.04 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | No |
| EPA certification number | 32-16 |
What space does the RSF / Industrial Chimney Company, Incorporated Delta Fusion suit?
- Its 34,057 BTU/h peak output covers roughly 950–1,350 sq ft at the 25–35 BTU/h-per-square-foot rule of thumb — see the sizing calculator to adjust for your insulation and climate.
- The 4.04 cu ft firebox puts it in the large-home, overnight-burn class.
- Rough fuel use: about 3.1 cords per season at the midpoint of its output range (8 burn-hours/day, 150-day season, 22 MMBtu/cord — see methodology).
- Certified burning Crib Wood .
Similar wood stoves
- United States Stove Company US2000 Model Line: AW2020 (1.6 g/hr)
- Innovative Hearth Products GV230GL (1.7 g/hr)
- Blaze King Industries Princess PE32 (2) (0.55 g/hr)
- Hearthstone Quality Home Heating Products Green Mountain 60 8660 (0.6 g/hr)
- United States Stove Company US1261E (1.9 g/hr)
- FPI/Regency Fireplace Products I2450M (1.4 g/hr)
Frequently asked questions
Is the RSF / Industrial Chimney Company, Incorporated Delta Fusion EPA certified?
The RSF / Industrial Chimney Company, Incorporated Delta Fusion holds EPA certification number 32-16 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.
What is the RSF / Industrial Chimney Company, Incorporated Delta Fusion's emission rate?
The RSF / Industrial Chimney Company, Incorporated Delta Fusion is certified at 1.3 grams of particulates per hour (tested with crib wood). Real-world emissions depend heavily on fuel moisture and operation — the lab figure assumes seasoned fuel and correct air settings.
How many square feet can the RSF / Industrial Chimney Company, Incorporated Delta Fusion heat?
Roughly 950–1,350 sq ft, estimated from its 34,057 BTU/h peak output at 25–35 BTU/h per square foot. Insulation, climate, ceiling height, and floor plan move this figure substantially in both directions.
Does the RSF / Industrial Chimney Company, Incorporated Delta Fusion 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 RSF / Industrial Chimney Company, Incorporated Delta Fusion's certified efficiency is 60% 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)