FUEL CONSUMPTION SAVING TYPE HOT AIR HEATER

摘要

PURPOSE: To realize a saving of fuel consumption by controlling one of a blowing quantity and a burning quantity so that an incremental coefficient of the blowing quantity exceeds that at the maximum of heating capacity to achieve the homogenization of the temperature of a room. CONSTITUTION: A heating capacity step controller 8 receive a signal of a difference between a room temperature and a set temperature from a temperature computing device 7 to set the step of heating capacity by the signal. A burning quantity controller 10 and a blowing quantity controller 9 control a burning quantity driver 3 and a fan 5 to the set heating capacity step respectively. Here, a blowing quantity W and a burning quantity G are set per heating capacity and a blowing quantity incremental coefficient K is expressed by K=(W-Wmin )/(G-Gmin ) (wherein, Wmin and Gmin represent blowing quantity and burning quantity at the minimum of heating capacity). At least one of the blowing quantity W and the burning quantity is controlled so that K>Kmax is met in an arbitrary heating capacity except for the maximum heating capacity step and the minimum heating capacity step (wherein Kmax represents blowing quantity increment coefficient at the maximum of heating capacity).