Blaze King King 40

Blaze King King 40

At 81% efficiency the King is the most efficient wood stove in the world. This allows you to get the most heat out of your wood to reduce your heating costs. The King has the largest and deepest firebox of any stove on the market and is for serious wood burners. This stove is great for families who live in colder climates, have larger homes or need heat for longer periods of time. You can fit up to 80 lbs. of wood into the King’s 4.35 cu.ft. firebox. That’s equal to 708,275 BTUs of available wood energy. The King can burn for 40+ hours on low or produce a tremendous amount of heat for 12 to 16 hours, depending on your installation and wood type.

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Real World Tested Performance

Cord Wood Max BTU 57,000
Efficiency 81%
Constant Heat Output on High 47,809 BTU’s/hr up to 12 hours
Constant Heat Output on Low 14,313 BTU’s/hr up to 40 hours
Square Feet Heate: 1500 – 3000
Maximum Log Size up to 22″
Burn Time Up to 40 hours on low
Emissions (grams/hour) 1.1 g/hr
Firebox Size 4.35 cu.ft.


Firebox Width 22¾” (577mm)
Firebox Height 15¼” (387mm)
Firebox Depth (brick to brick) 17¼” (438mm)
Firebox Depth (brick to glass) 21½” (546mm)
Weight (firebox only) 420 lbs
Weight with Ultra Pedestal 470 lbs
Weight with Classic Base 450 lbs
Weight with Parlor Legs 440 lbs