This vertical type biomass thermal oil boiler from HANYU Boiler is a new type of special boiler with low pressure and high temperature working characteristics. The boiler uses coal or biomass as fuel, thermal oil as medium, and a hot oil circulation oil pump to force the medium for liquid-phase circulation. The heat energy is transported to the heating equipment and then returned to the heating furnace for reheating. It has the characteristic of obtaining high temperature under low pressure and can perform high-precision control on the operation of the medium. The system of this boiler has a high heat utilization rate, convenient operation and maintenance, and is an ideal heating equipment that is safe, efficient, and energy-saving.