Stove Builder International Everest III Series: Everest III
Stove Builder International Everest III Series: Everest III is a non-catalytic wood stove from Stove Builder International certified at 1.9 g/hr particulate emissions with 65% HHV efficiency and a 23,900–78,200 BTU/h output range.
| Appliance type | wood-stove |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Cord Wood |
| Covered model numbers | Everest III Series: Everest III, HE325R, Dallaire, St. Clair 3000R, Solution 3.0 ZC |
| Emission rate | 1.9 g/hr |
|---|---|
| Carbon monoxide | 1.7 g/min |
| Efficiency (HHV) | 65 % |
|---|
| Heat output (low) | 23900 BTU/h |
|---|---|
| Heat output (high) | 78200 BTU/h |
| Firebox volume | 2.61 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 388-24 |
What space does the Stove Builder International Everest III Series: Everest III suit?
- Its 78,200 BTU/h peak output covers roughly 2,250–3,150 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 2.61 cu ft firebox puts it in the mid-size home class.
- Rough fuel use: about 4.3 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
- Travis Industries 44 Elite (1.8 g/hr)
- Innovative Hearth Products Montecito-C Series: Montecito-C (1.5 g/hr)
- Hearth and Home Technologies Quadra-Fire Pioneer - III (2 g/hr)
- Stove Builder International SR-3.2 Series: St-Louis (1.8 g/hr)
- Jotul North America (Jotul U.S.A., Inc.) F 55 V2 (1.3 g/hr)
- Stove Builder International 1.4R Series: Osburn 950 N (1.7 g/hr)
Frequently asked questions
Is the Stove Builder International Everest III Series: Everest III EPA certified?
Yes, the Stove Builder International Everest III Series: Everest III is on the EPA's current list of certified wood heaters (certification number 388-24) and meets the 2020 NSPS Step 2 emission limits.
What is the Stove Builder International Everest III Series: Everest III's emission rate?
The Stove Builder International Everest III Series: Everest III is certified at 1.9 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 Stove Builder International Everest III Series: Everest III heat?
Roughly 2,250–3,150 sq ft, estimated from its 78,200 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 Stove Builder International Everest III Series: Everest III 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 Stove Builder International Everest III Series: Everest III's certified efficiency is 65% 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)