Foyers Supreme Astra 18
Foyers Supreme Astra 18 is a non-catalytic wood stove from Foyers Supreme certified at 2 g/hr particulate emissions with 61% HHV efficiency and a 9,756–18,805 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 | Astra 18, Elegance 30, Novo 18 – Soapstone, and Novo 18 – Cast Iron |
| Emission rate | 2 g/hr |
|---|---|
| Carbon monoxide | 1.87 g/min |
| Efficiency (HHV) | 61 % |
|---|
| Heat output (low) | 9756 BTU/h |
|---|---|
| Heat output (high) | 18805 BTU/h |
| Firebox volume | 1.7 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | No |
| EPA certification number | 137-18 |
What space does the Foyers Supreme Astra 18 suit?
- Its 18,805 BTU/h peak output covers roughly 550–750 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 1.7 cu ft firebox puts it in the mid-size home 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
- Morso Jernstoberi A/S 6100 B Series (6140 B (1.8 g/hr)
- Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115 (0.6 g/hr)
- Hearth and Home Technologies Quadra-Fire Pioneer III-ARC & Quadra-Fire – Pioneer III -REC Wood Heater Model Line (1.3 g/hr)
- Foyers Supreme Lumis 22 – Soapstone (1.3 g/hr)
- Foyers Supreme Astra 18 (2) (1.2 g/hr)
- Pacific Energy Fireplace Products Limited True North TN10 (1.4 g/hr)
Frequently asked questions
Is the Foyers Supreme Astra 18 EPA certified?
The Foyers Supreme Astra 18 holds EPA certification number 137-18 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 Foyers Supreme Astra 18's emission rate?
The Foyers Supreme Astra 18 is certified at 2 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 Foyers Supreme Astra 18 heat?
Roughly 550–750 sq ft, estimated from its 18,805 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 Foyers Supreme Astra 18 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 Foyers Supreme Astra 18's certified efficiency is 61% 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)