Stove Builder International XTD 1.9 Stove
Stove Builder International XTD 1.9 Stove is a non-catalytic wood stove from Stove Builder International certified at 1.5 g/hr particulate emissions with 69% HHV efficiency and a 14,800–26,800 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 | Cord Wood |
| Covered model numbers | XTD 1.9 Stove, XTD 1.9-I Insert, CW2900 Insert, Destination 2.3-I Insert, HEI 240 Insert, HEI 240R Insert, Matrix-I, HES240, HEI240 |
| Emission rate | 1.5 g/hr |
|---|---|
| Carbon monoxide | 1.5 g/min |
| Efficiency (HHV) | 69 % |
|---|
| Heat output (low) | 14800 BTU/h |
|---|---|
| Heat output (high) | 26800 BTU/h |
| Firebox volume | 2.02 cu ft |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | No |
| EPA certification number | 101-17 |
What space does the Stove Builder International XTD 1.9 Stove suit?
- Its 26,800 BTU/h peak output covers roughly 750–1,050 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 2.02 cu ft firebox puts it in the mid-size home class.
- Rough fuel use: about 1.6 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
- Hearth and Home Technologies Quadra-Fire Expedition II (1.8 g/hr)
- Enerco Group Mini Wood Stove: WS080 (1.6 g/hr)
- STUV AMERICA STUV 1658IN (1.47 g/hr)
- ARADA STOVES Farringdon 16 (1.5 g/hr)
- RSF / Industrial Chimney Company, Incorporated OPEL PLUS Series: Opel+ 2C (0.7 g/hr)
- Foyers Supreme 16 IN Model Line: Lumis 16 (16 IN) (0.95 g/hr)
Frequently asked questions
Is the Stove Builder International XTD 1.9 Stove EPA certified?
The Stove Builder International XTD 1.9 Stove holds EPA certification number 101-17 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 Stove Builder International XTD 1.9 Stove's emission rate?
The Stove Builder International XTD 1.9 Stove is certified at 1.5 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 XTD 1.9 Stove heat?
Roughly 750–1,050 sq ft, estimated from its 26,800 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 XTD 1.9 Stove 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 XTD 1.9 Stove's certified efficiency is 69% 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)