Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert vs Blaze King Industries King KE40 (3)
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. The Blaze King Industries King KE40 (3) is the more efficient unit: 81% versus 79% HHV — more heat from every cord. The Blaze King Industries King KE40 (3) produces more peak heat (38,516 vs 24,085 BTU/h), suiting roughly 1,100–1,550 sq ft. The Blaze King Industries King KE40 (3) has the larger firebox (4.55 vs 2.08 cu ft), which generally means longer burns between reloads.
| Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert | Blaze King Industries King KE40 (3) | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.74 g/hr | 1 g/hr |
| Efficiency (HHV) | 79 % | 81 % |
| Heat output (low) | 8038 BTU/h | 10392 BTU/h |
| Heat output (high) | 24085 BTU/h | 38516 BTU/h |
| Firebox volume | 2.08 cu ft | 4.55 cu ft |
| Carbon monoxide | 0.21 g/min | 0.49 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 | 220-19 |
| Covered model numbers | 25 Series: Sirocco 25 (SC25) Insert, Ashford 25 (AF25) Insert, Boxer 24 (BX24) Freestanding | King KE40 |
Frequently asked questions
Which burns cleaner, the Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert or the Blaze King Industries King KE40 (3)?
The Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert: 0.74 g/hr certified particulate emissions versus 1 g/hr for the Blaze King Industries King KE40 (3).
Are the Blaze King Industries 25 Series: Sirocco 25 (SC25) Insert and Blaze King Industries King KE40 (3) 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.