Stove Builder International 1.4 Series (Osburn 950 vs Stove Builder International 2.3 Series (Archway 2300

The Stove Builder International 1.4 Series (Osburn 950 is the cleaner burner: 1.8 g/hr certified particulate emissions versus 2.3 g/hr. The Stove Builder International 1.4 Series (Osburn 950 is the more efficient unit: 74% versus 72% HHV — more heat from every cord. The Stove Builder International 2.3 Series (Archway 2300 produces more peak heat (44,500 vs 26,500 BTU/h), suiting roughly 1,250–1,800 sq ft. The Stove Builder International 2.3 Series (Archway 2300 has the larger firebox (1.95 vs 1.55 cu ft), which generally means longer burns between reloads.

Stove Builder International 1.4 Series (Osburn 950 Stove Builder International 2.3 Series (Archway 2300
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 2.3 g/hr
Efficiency (HHV) 74 % 72 %
Heat output (low) 12100 BTU/h 14200 BTU/h
Heat output (high) 26500 BTU/h 44500 BTU/h
Firebox volume 1.55 cu ft 1.95 cu ft
Carbon monoxide 1.2 g/min 1.1 g/min
25C tax credit eligible (≥75% HHV) No No
2020 NSPS compliant Yes Yes
Currently in production Yes Yes
EPA certification number 289-21 101-17
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) 2.3 Series (Archway 2300, FW2900, Gateway 2300, Green Mountain Insert 70, Escape 1800, Inspire 2000, Inspire 2000-I, Matrix, Escape 1800-I, Osburn 2000, Osburn 2000-I, Harmony 2.3, Solution 2.3, Solution 2.3-I, CW2900, Destination 2.3-I, Matrix-I, HES240, HEI240, Heritage, Deco Alto, Harmony 2.3-I, Blue Ridge 300P, Blue Ridge 300L, and Blue Ridge 300-I)

Frequently asked questions

Which burns cleaner, the Stove Builder International 1.4 Series (Osburn 950 or the Stove Builder International 2.3 Series (Archway 2300?

The Stove Builder International 1.4 Series (Osburn 950: 1.8 g/hr certified particulate emissions versus 2.3 g/hr for the Stove Builder International 2.3 Series (Archway 2300.

Are the Stove Builder International 1.4 Series (Osburn 950 and Stove Builder International 2.3 Series (Archway 2300 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.