This furnace integrates combustion and heat exchange into a new indirect heating technology that uses high-temperature parts of the furnace body for heat exchange. Smoke and air flow separately, heating is absolutely pollution-free, with high thermal efficiency (up to 60-75%), fast heating, small size, easy installation, reliable use, and low price (compared to a one ton boiler, this heating system is only half the price of a boiler heating system).

High temperature resistance measures have been taken, greatly extending its lifespan compared to tube type hot air stoves. Longitudinal flushing of heat dissipation fins by flue gas and negative pressure exhaust methods have been adopted, ensuring that the heat exchange area does not accumulate dust and does not require cleaning, resulting in stable thermal performance. Various types of coal or wood can be used as fuel, and equipped with a secondary air inlet device for complete combustion. All technical and economic indicators of the furnace have reached the domestic level.

This furnace is a universal hot air device that is used in conjunction with drying equipment for various materials. Widely used for heating and dehumidification of agricultural products such as grains, seeds, feed, fruits, dehydrated vegetables, fragrant mushrooms, fungus, Tremella fuciformis, tea, tobacco leaves, food, pharmaceuticals, chemical raw materials, and light and heavy industrial products. It can also be used for heating various facilities and dehumidification in warehouses.