Stove Builder International 1.4R Series: Osburn 950 N vs Stove Builder International Bistro Series (Bistro
The Stove Builder International 1.4R Series: Osburn 950 N is the cleaner burner: 1.7 g/hr certified particulate emissions versus 2 g/hr. The Stove Builder International Bistro Series (Bistro is the more efficient unit: 76% versus 74% HHV — more heat from every cord. The Stove Builder International 1.4R Series: Osburn 950 N produces more peak heat (71,279 vs 50,200 BTU/h), suiting roughly 2,050–2,850 sq ft. The Stove Builder International Bistro Series (Bistro has the larger firebox (2.26 vs 1.67 cu ft), which generally means longer burns between reloads.
| Stove Builder International 1.4R Series: Osburn 950 N | Stove Builder International Bistro Series (Bistro | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Non-Catalytic Stove | Non-Catalytic Stove |
| Certified fuel | Cord Wood | Cord Wood |
| Emission rate | 1.7 g/hr | 2 g/hr |
| Efficiency (HHV) | 74 % | 76 % |
| Heat output (low) | 18785 BTU/h | 14300 BTU/h |
| Heat output (high) | 71279 BTU/h | 50200 BTU/h |
| Firebox volume | 1.67 cu ft | 2.26 cu ft |
| Carbon monoxide | 1.3 g/min | 1 g/min |
| 25C tax credit eligible (≥75% HHV) | No | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 412-26 | 337-22 |
| Covered model numbers | 1.4R Series: Osburn 950 N, Escape 1200 N, Gateway 1400 N, Solution 1.4 N, Spark II N, Fox N, Deco Nano N, S250 N, HES140 N, Blue Ridge 100 N, SP1400 N, SL1400 N | Bistro Series (Bistro, Gusto, Pyra, 600, HEC240, IW600) |
Frequently asked questions
Which burns cleaner, the Stove Builder International 1.4R Series: Osburn 950 N or the Stove Builder International Bistro Series (Bistro?
The Stove Builder International 1.4R Series: Osburn 950 N: 1.7 g/hr certified particulate emissions versus 2 g/hr for the Stove Builder International Bistro Series (Bistro.
Are the Stove Builder International 1.4R Series: Osburn 950 N and Stove Builder International Bistro Series (Bistro both EPA certified?
Yes — both appear on the U.S. EPA's current list of certified wood heaters, and every figure on this page comes from their certification records.