Performance characteristics: 5/10/20/300,000 kcal Heating area: 300-1800 square meters Stainless steel heat exchanger with new design Combustion chamber heightened design, with ultra-long service life All stainless steel dust collector, easy dust removal and higher efficiency. Performance characteristics: 5/10/20/300,000 kcal Heating area: 300-1800 square meters Stainless steel heat exchanger with new design Combustion chamber heightened design, with ultra-long service life All stainless steel dust collector, easy to remove dust, higher efficiency ·No disassembly machine for ash cleaning, easy to maintain ·Upper and lower air outlet design, can be customized according to needs Unique overall thermal insulation design, heat loss is minimized Unique high-temperature cast steel pipe with a wall thickness of 20mm, which will not be deformed after burning for ten years Thermal efficiency up to 80% Product Description:   The automatic coal-fired hot air blower produced by our factory is the scientific and technological personnel of our factory to develop painstakingly, made of high-temperature resistant stainless steel tube boiler plate, this machine has the unique characteristics of secondary heating, high thermal efficiency, fast heating, pure hot air, semi-automatic temperature control, easy installation and so on.