The system can use biomass and coal as fuel to supply hot water,air and

 flue gasthrough ga5ification and combustion. It has the following fe-

atures: Automatic starting function the system will start automatically

in seven minutes after a single touch of the electrical button.Dual comb-

ustion chambers-to ensure a complete combustion of fuel and lower emission

 level.An effective dust-removing device-can remove extremely fine dusts

 from the Hue gas.With the system operating at a negative pressure,fuels

 can be charged while in operation,catering for substantial convenience for