STUV AMERICA STUV SIX 76-55
STUV AMERICA STUV SIX 76-55 is a non-catalytic wood stove from STUV AMERICA certified at 1.86 g/hr particulate emissions with 68% HHV efficiency and a 20,473–22,732 BTU/h output range.
| Appliance type | wood-stove |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Crib Wood |
| Covered model numbers | STUV SIX 76-55 |
| Emission rate | 1.86 g/hr |
|---|---|
| Carbon monoxide | 1.42 g/min |
| Efficiency (HHV) | 68 % |
|---|
| Heat output (low) | 20473 BTU/h |
|---|---|
| Heat output (high) | 22732 BTU/h |
| Firebox volume | 1.55 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 307-22 |
What space does the STUV AMERICA STUV SIX 76-55 suit?
- Its 22,732 BTU/h peak output covers roughly 650–900 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 1.55 cu ft firebox puts it in the mid-size home class.
- Rough fuel use: about 1.7 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
- Innovative Hearth Products Ladera CAT WRT3920WS (1.8 g/hr)
- Rais A/S Viva 100 L (CA) USA (1.1 g/hr)
- RSF / Industrial Chimney Company, Incorporated Focus 320 SBR (1.4 g/hr)
- Foyers Supreme Fusion 18 18FN (1.9 g/hr)
- Pacific Energy Fireplace Products Limited Vista LE (1.9 g/hr)
- Stove Builder International 1.7 Series - Archway 1700 (1.3 g/hr)
Frequently asked questions
Is the STUV AMERICA STUV SIX 76-55 EPA certified?
Yes, the STUV AMERICA STUV SIX 76-55 is on the EPA's current list of certified wood heaters (certification number 307-22) and meets the 2020 NSPS Step 2 emission limits.
What is the STUV AMERICA STUV SIX 76-55's emission rate?
The STUV AMERICA STUV SIX 76-55 is certified at 1.86 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 STUV AMERICA STUV SIX 76-55 heat?
Roughly 650–900 sq ft, estimated from its 22,732 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 STUV AMERICA STUV SIX 76-55 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 STUV AMERICA STUV SIX 76-55's certified efficiency is 68% 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)