Stove Builder International 1.4 Series (Osburn 950 vs Stove Builder International 2.1 Series (Destination 1.9

The Stove Builder International 2.1 Series (Destination 1.9 is the cleaner burner: 1.5 g/hr certified particulate emissions versus 1.8 g/hr. The Stove Builder International 2.1 Series (Destination 1.9 is the more efficient unit: 75% versus 74% HHV — more heat from every cord. The Stove Builder International 2.1 Series (Destination 1.9 produces more peak heat (31,700 vs 26,500 BTU/h), suiting roughly 900–1,250 sq ft. The Stove Builder International 1.4 Series (Osburn 950 has the larger firebox (1.55 vs 1.03 cu ft), which generally means longer burns between reloads.

Stove Builder International 1.4 Series (Osburn 950 Stove Builder International 2.1 Series (Destination 1.9
Appliance type wood-stove wood-stove
Combustion technology Non-Catalytic Stove Non-Catalytic Stove
Certified fuel Cord Wood Cord Wood
Emission rate 1.8 g/hr 1.5 g/hr
Efficiency (HHV) 74 % 75 %
Heat output (low) 12100 BTU/h 8500 BTU/h
Heat output (high) 26500 BTU/h 31700 BTU/h
Firebox volume 1.55 cu ft 1.03 cu ft
Carbon monoxide 1.2 g/min 0.6 g/min
25C tax credit eligible (≥75% HHV) No Yes
2020 NSPS compliant Yes Yes
Currently in production Yes Yes
EPA certification number 289-21 299-22
Covered model numbers 1.4 Series (Osburn 950, Escape 1200, Gateway 1400, Solution 1.4, Spark II, Fox, Déco Nano, S250, Harmony 1.4, HES140, Blue Ridge 100) 2.1 Series (Destination 1.9, Matrix 1900, CW2100, Green Mountain Insert 50, HEI90, Archway 1500, Blue Ridge 150-I)

Frequently asked questions

Which burns cleaner, the Stove Builder International 1.4 Series (Osburn 950 or the Stove Builder International 2.1 Series (Destination 1.9?

The Stove Builder International 2.1 Series (Destination 1.9: 1.5 g/hr certified particulate emissions versus 1.8 g/hr for the Stove Builder International 1.4 Series (Osburn 950.

Are the Stove Builder International 1.4 Series (Osburn 950 and Stove Builder International 2.1 Series (Destination 1.9 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.