J. A. Roby Cook
J. A. Roby Cook is a non-catalytic wood stove from J. A. Roby certified at 1.9 g/hr particulate emissions with 64% HHV efficiency and a 9,806–21,782 BTU/h output range.
| Appliance type | wood-stove |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Crib Wood |
| Covered model numbers | Cook, Cicero, Chief, Cuistot, Elda, Marmiton |
| Emission rate | 1.9 g/hr |
|---|---|
| Carbon monoxide | 0.03 g/min |
| Efficiency (HHV) | 64 % |
|---|
| Heat output (low) | 9806 BTU/h |
|---|---|
| Heat output (high) | 21782 BTU/h |
| Firebox volume | 1.37 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 85-17 |
What space does the J. A. Roby Cook suit?
- Its 21,782 BTU/h peak output covers roughly 600–850 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 1.37 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
- J. A. Roby Polaris (1.4 g/hr)
- Wittus Shaker (1.8 g/hr)
- Hearth and Home Technologies Heat & Glo Pioneer-II-ARC (1.7 g/hr)
- Hearth and Home Technologies Vermont Castings by Forge and Flame Dauntless-C (1.7 g/hr)
- Spartherm S 600 Insert (2) (1.8 g/hr)
- Foyers Supreme Fusion 18 18FN (1.9 g/hr)
Frequently asked questions
Is the J. A. Roby Cook EPA certified?
Yes, the J. A. Roby Cook is on the EPA's current list of certified wood heaters (certification number 85-17) and meets the 2020 NSPS Step 2 emission limits.
What is the J. A. Roby Cook's emission rate?
The J. A. Roby Cook is certified at 1.9 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 Cook heat?
Roughly 600–850 sq ft, estimated from its 21,782 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 Cook 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 Cook's certified efficiency is 64% 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)