Innovative Hearth Products Ladera-D
Innovative Hearth Products Ladera-D is a non-catalytic wood stove from Innovative Hearth Products certified at 1.66 g/hr particulate emissions with 59% HHV efficiency and a 12,023–53,266 BTU/h output range.
| Appliance type | wood-stove |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Cord Wood |
| Covered model numbers | Ladera-D, WRT3920-B |
| Emission rate | 1.66 g/hr |
|---|---|
| Carbon monoxide | 1.3 g/min |
| Efficiency (HHV) | 59 % |
|---|
| Heat output (low) | 12023 BTU/h |
|---|---|
| Heat output (high) | 53266 BTU/h |
| Firebox volume | 1.71 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 304-22 |
What space does the Innovative Hearth Products Ladera-D suit?
- Its 53,266 BTU/h peak output covers roughly 1,500–2,150 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 1.71 cu ft firebox puts it in the mid-size home class.
- Rough fuel use: about 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 Cord Wood — the test fuel closest to real-world firewood.
Similar wood stoves
- FPI/Regency Fireplace Products F2450 (2.3 g/hr)
- Aduro AS H1 Hybrid (1.2 g/hr)
- Wolf Steel Napoleon S25 (1.3 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)
Frequently asked questions
Is the Innovative Hearth Products Ladera-D EPA certified?
Yes, the Innovative Hearth Products Ladera-D is on the EPA's current list of certified wood heaters (certification number 304-22) and meets the 2020 NSPS Step 2 emission limits.
What is the Innovative Hearth Products Ladera-D's emission rate?
The Innovative Hearth Products Ladera-D is certified at 1.66 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 Innovative Hearth Products Ladera-D heat?
Roughly 1,500–2,150 sq ft, estimated from its 53,266 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 Innovative Hearth Products Ladera-D 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 Innovative Hearth Products Ladera-D's certified efficiency is 59% 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)