Aduro AS H1 Hybrid
Aduro AS H1 Hybrid is a non-catalytic wood stove from Aduro AS certified at 1.2 g/hr particulate emissions with 80% HHV efficiency and a 27,630–53,832 BTU/h output range.
| Appliance type | wood-stove |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Cord Wood |
| Covered model numbers | H1 Hybrid, H2 Hybrid, H3 Hybrid |
| Emission rate | 1.2 g/hr |
|---|---|
| Carbon monoxide | 1.5 g/min |
| Efficiency (HHV) | 80 % |
|---|
| Heat output (low) | 27630 BTU/h |
|---|---|
| Heat output (high) | 53832 BTU/h |
| Firebox volume | 0.653 cu ft |
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 345-23 |
What space does the Aduro AS H1 Hybrid suit?
- Its 53,832 BTU/h peak output covers roughly 1,550–2,150 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 0.653 cu ft firebox puts it in the small/cabin class.
- Rough fuel use: about 2.8 cords per season at the midpoint of its output range (8 burn-hours/day, 150-day season, 22 MMBtu/cord — see methodology).
- Certified burning Cord Wood — the test fuel closest to real-world firewood.
Similar wood stoves
- Wolf Steel Napoleon S25 (1.3 g/hr)
- FPI/Regency Fireplace Products F2450 (2.3 g/hr)
- Wolf Steel Napoleon 2020-S (2.3 g/hr)
- Wolf Steel Napoleon S20 (2.3 g/hr)
- Wolf Steel Timberwolf 2200 (2.3 g/hr)
- Innovative Hearth Products Ladera-D (1.66 g/hr)
Frequently asked questions
Is the Aduro AS H1 Hybrid EPA certified?
Yes, the Aduro AS H1 Hybrid is on the EPA's current list of certified wood heaters (certification number 345-23) and meets the 2020 NSPS Step 2 emission limits.
What is the Aduro AS H1 Hybrid's emission rate?
The Aduro AS H1 Hybrid is certified at 1.2 grams of particulates per hour (tested with cord 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 Aduro AS H1 Hybrid heat?
Roughly 1,550–2,150 sq ft, estimated from its 53,832 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 Aduro AS H1 Hybrid 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 Aduro AS H1 Hybrid's certified efficiency is 80% HHV, which met 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)