The customer melts the material after cleaning the mustard and caraway. The boiler melts into a storage tank, which is a radiator and underfloor heating system in two houses. The entire system is automatic. The boiler automatically ignites and extinguishes as required by the storage tank, and the customer only sheds ash from the automatic soap dispenser once a week and refills the hopper with fuel. The boiler body has spirals in the flue ways that ensure convenient cleaning without the need for the boiler to disassemble and stretch the paths with a wire brush for cleaning. In this case, the Multibio 49 EC boiler replaced the boiler of another plant fuel mark, which could not reliably burn the fuel according to customer information.