To provide a heating system using a stove that increases the efficiency of heat emission into a room, reduces flue gas and significantly reduces tar, soot and other deposits in a chimney by ensuring high efficiency combustion in a furnace fueled by conifers such as larches, eliminates smoke leakage into the room by accelerating ignition, and implements a simple operation.

The wall material and combustion furnace shape of the stove are adapted for efficient contact between air and fuel (firewood) in the combustion furnace, and a chimney connection is shaped uniquely for accelerated secondary combustion in the combustion furnace, so that heating efficiency is increased drastically. An air intake is also adapted for a significantly short ignition time and a simple operation.