Blaze King Industries King KE40 (3)
Blaze King Industries King KE40 (3) is a catalytic wood stove from Blaze King Industries certified at 1 g/hr particulate emissions with 81% HHV efficiency and a 10,392–38,516 BTU/h output range.
| Appliance type | wood-stove |
|---|---|
| Combustion technology | Catalytic Stove |
| Certified fuel | Crib Wood |
| Covered model numbers | King KE40 |
| Emission rate | 1 g/hr |
|---|---|
| Carbon monoxide | 0.49 g/min |
| Efficiency (HHV) | 81 % |
|---|
| Heat output (low) | 10392 BTU/h |
|---|---|
| Heat output (high) | 38516 BTU/h |
| Firebox volume | 4.55 cu ft |
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 220-19 |
What space does the Blaze King Industries King KE40 (3) suit?
- Its 38,516 BTU/h peak output covers roughly 1,100–1,550 sq ft at the 25–35 BTU/h-per-square-foot rule of thumb — see the sizing calculator to adjust for your insulation and climate.
- The 4.55 cu ft firebox puts it in the large-home, overnight-burn class.
- Rough fuel use: about 1.6 cords per season at the midpoint of its output range (8 burn-hours/day, 150-day season, 22 MMBtu/cord — see methodology).
- Certified burning Crib Wood .
Compare the Blaze King Industries King KE40 (3)
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- Blaze King Industries King KE40 (3) vs FPI/Regency Fireplace Products CI2700-1
- Blaze King Industries King KE40 (3) vs FPI/Regency Fireplace Products F1500
- Blaze King Industries King KE40 (3) vs FPI/Regency Fireplace Products F2500-1
- Blaze King Industries King KE40 (3) vs FPI/Regency Fireplace Products F3500B-1
- Blaze King Industries King KE40 (3) vs FPI/Regency Fireplace Products F5200 (2)
- Blaze King Industries King KE40 (3) vs Hearth and Home Technologies Quadra-Fire 21M-ACC-C
- Blaze King Industries King KE40 (3) vs Hearth and Home Technologies Quadra-Fire 43M-ACC-C
Similar wood stoves
- Blaze King Industries King KE40 (2) (1 g/hr)
- Travis Industries Answer NexGen Hybrid (2) (1.4 g/hr)
- Hearth and Home Technologies Quadra-Fire 57ST-ACC-C (1.8 g/hr)
- Jotul North America (Jotul U.S.A., Inc.) F 500 V3 (0.5 g/hr)
- Pacific Energy Fireplace Products Limited Super LE (1.8 g/hr)
- Morso Jernstoberi A/S 6140 B (0.67 g/hr)
Frequently asked questions
Is the Blaze King Industries King KE40 (3) EPA certified?
Yes, the Blaze King Industries King KE40 (3) is on the EPA's current list of certified wood heaters (certification number 220-19) and meets the 2020 NSPS Step 2 emission limits.
What is the Blaze King Industries King KE40 (3)'s emission rate?
The Blaze King Industries King KE40 (3) is certified at 1 grams of particulates per hour (tested with crib wood). Real-world emissions depend heavily on fuel moisture and operation — the lab figure assumes seasoned fuel and correct air settings.
How many square feet can the Blaze King Industries King KE40 (3) heat?
Roughly 1,100–1,550 sq ft, estimated from its 38,516 BTU/h peak output at 25–35 BTU/h per square foot. Insulation, climate, ceiling height, and floor plan move this figure substantially in both directions.
Does the Blaze King Industries King KE40 (3) qualify for a federal tax credit?
No — the federal 25C credit for biomass stoves was terminated for property placed in service after December 31, 2025. The Blaze King Industries King KE40 (3)'s certified efficiency is 81% HHV, which met the credit's ≥75% HHV threshold while it existed. State and local incentive programs may still apply — check your state energy office and air district.
Sources
- cfpub.epa.gov (retrieved 2026-07-23)