Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert vs Woodstock Soapstone Company 212N Navajo Hybrid Wood-Coal

The Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert is the cleaner burner: 0.74 g/hr certified particulate emissions versus 1 g/hr. They tie on efficiency at 79% HHV. The Woodstock Soapstone Company 212N Navajo Hybrid Wood-Coal produces more peak heat (27,294 vs 24,085 BTU/h), suiting roughly 800–1,100 sq ft. The Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert has the larger firebox (2.08 vs 1.15 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert is a catalytic stove and the Woodstock Soapstone Company 212N Navajo Hybrid Wood-Coal a hybrid — see the catalytic vs non-catalytic guide for what that means day to day.

Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert Woodstock Soapstone Company 212N Navajo Hybrid Wood-Coal
Appliance type wood-stove wood-stove
Combustion technology Catalytic Stove Hybrid
Certified fuel Crib Wood Crib Wood
Emission rate 0.74 g/hr 1 g/hr
Efficiency (HHV) 79 % 79 %
Heat output (low) 8038 BTU/h 15332 BTU/h
Heat output (high) 24085 BTU/h 27294 BTU/h
Firebox volume 2.08 cu ft 1.15 cu ft
Carbon monoxide 0.21 g/min 0.15 g/min
25C tax credit eligible (≥75% HHV) Yes Yes
2020 NSPS compliant Yes Yes
Currently in production Yes Yes
EPA certification number 30-16 108-17
Covered model numbers 25 Series: Sirocco 25 (SC25) Insert, Ashford 25 (AF25) Insert, Boxer 24 (BX24) Freestanding 212N Navajo Hybrid Wood-Coal, 212S Survival Hybrid Wood-Coal

Frequently asked questions

Which burns cleaner, the Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert or the Woodstock Soapstone Company 212N Navajo Hybrid Wood-Coal?

The Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert: 0.74 g/hr certified particulate emissions versus 1 g/hr for the Woodstock Soapstone Company 212N Navajo Hybrid Wood-Coal.

Are the Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert and Woodstock Soapstone Company 212N Navajo Hybrid Wood-Coal 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.