The Blaze King 40 wood-burning stove is a freestanding heating appliance designed for homes requiring consistent and efficient heat. With an efficiency rating of 81% , it is recognized as one of the world's most efficient wood-burning stoves, extracting maximum heat from the wood to reduce heating costs.

Its 4.35 cubic foot firebox can hold up to 80 pounds of wood, which equates to 708,275 BTUs of available heat. The stove offers up to 40 hours of burn time on low setting, while producing intense heat for 12 to 16 hours on high setting, depending on the installation and type of wood used.

It features thermostatic control for precise temperature regulation and can efficiently heat spaces from 1,500 to 3,000 square feet . The King 40 is also approved for use in mobile homes , offering added installation flexibility.