To improve thermal efficiency of a woody pellet combustion type warm air generating device using woody pellets as fuel.
The woody pellet combustion type warm air generating device includes a combustion chamber for firing woody pellets as fuel and a heat exchange chamber for heating outside air to blow out warm air by heating a heat exchange pipe through which sucked outside air passes by heat generated in the combustion chamber. The combustion chamber is arranged inside the heat exchange chamber, and the heat exchange pipe is arranged on an arc around the combustion chamber. A fuel supply pipe for supplying the woody pellets is connected to the combustion chamber and an air supply pipe for supplying air is connected to the fuel supply pipe, so as to supply air from the fuel supply pipe to the combustion chamber. An ash collecting tray for storing incineration ash is arranged on the lower side of the combustion chamber, and a scraper for scraping out the incineration ash to the ash collecting tray on the lower side is provided in the combustion chamber.
TAKAHASHI KAZUO
NAKAHAMA KEIJI
