MF Fire Nova 2C vs Stove Builder International 1.4R Series: Osburn 950 N
The MF Fire Nova 2C is the cleaner burner: 1.4 g/hr certified particulate emissions versus 1.7 g/hr. The MF Fire Nova 2C is the more efficient unit: 78% 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 21,009 BTU/h), suiting roughly 2,050–2,850 sq ft. The MF Fire Nova 2C has the larger firebox (2.33 vs 1.67 cu ft), which generally means longer burns between reloads. Combustion technology differs: the MF Fire Nova 2C is a catalytic stove and the Stove Builder International 1.4R Series: Osburn 950 N a non-catalytic stove — see the catalytic vs non-catalytic guide for what that means day to day.
| MF Fire Nova 2C | Stove Builder International 1.4R Series: Osburn 950 N | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Non-Catalytic Stove |
| Certified fuel | Cord Wood | Cord Wood |
| Emission rate | 1.4 g/hr | 1.7 g/hr |
| Efficiency (HHV) | 78 % | 74 % |
| Heat output (low) | 19012 BTU/h | 18785 BTU/h |
| Heat output (high) | 21009 BTU/h | 71279 BTU/h |
| Firebox volume | 2.33 cu ft | 1.67 cu ft |
| Carbon monoxide | 0.515 g/min | 1.3 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | No |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 401-25 | 412-26 |
| Covered model numbers | Nova 2C, Nova 2C Tower | 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 |
Frequently asked questions
Which burns cleaner, the MF Fire Nova 2C or the Stove Builder International 1.4R Series: Osburn 950 N?
The MF Fire Nova 2C: 1.4 g/hr certified particulate emissions versus 1.7 g/hr for the Stove Builder International 1.4R Series: Osburn 950 N.
Are the MF Fire Nova 2C and Stove Builder International 1.4R Series: Osburn 950 N 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.