J. A. Roby Supero
J. A. Roby Supero is a non-catalytic wood stove from J. A. Roby certified at 1.5 g/hr particulate emissions with 71% HHV efficiency and a 12,704–20,184 BTU/h output range.
| Appliance type | wood-stove |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Crib Wood |
| Covered model numbers | Supero, Ignis, Calor |
| Emission rate | 1.5 g/hr |
|---|---|
| Carbon monoxide | 1.2 g/min |
| Efficiency (HHV) | 71 % |
|---|
| Heat output (low) | 12704 BTU/h |
|---|---|
| Heat output (high) | 20184 BTU/h |
| Firebox volume | 1.397 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 396-25 |
What space does the J. A. Roby Supero suit?
- Its 20,184 BTU/h peak output covers roughly 600–800 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 1.397 cu ft firebox puts it in the small/cabin class.
- Rough fuel use: about 1.3 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
- Rais A/S Nexo 100 ManualNexo 100 Classic Manual (1.1 g/hr)
- Hearth and Home Technologies Vermont Castings Aspen C3 (2 g/hr)
- Rais A/S Q-Tee II USA Series: Q-Tee II USA (0.7 g/hr)
- Spartherm L 800 ZC (1.3 g/hr)
- Hearthstone Quality Home Heating Products Lincoln 8060 (1.1 g/hr)
- Foyers Supreme Astra 18 (2) (1.2 g/hr)
Frequently asked questions
Is the J. A. Roby Supero EPA certified?
Yes, the J. A. Roby Supero is on the EPA's current list of certified wood heaters (certification number 396-25) and meets the 2020 NSPS Step 2 emission limits.
What is the J. A. Roby Supero's emission rate?
The J. A. Roby Supero is certified at 1.5 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 J. A. Roby Supero heat?
Roughly 600–800 sq ft, estimated from its 20,184 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 J. A. Roby Supero 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 J. A. Roby Supero's certified efficiency is 71% 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)