Forced air supply and exhaust type warm air heater

摘要

PROBLEM TO BE SOLVED: To provide a forced air supply and exhaust type warm air furnace for installing an instrument body to a wall perfectly by eliminating the connection pipe of a supply and exhaust type cylinder that is formed between the wall and the instrument body and the projecting part of a hot air fan and a fan guard.;SOLUTION: Exhaust after combustion and supply of combustion air are made outdoors via an air supply and exhaust cylinder 1 in double-pipe structure, a terminal part 10 that is the connection part between an exhaust pipe 16 at the side of an instrument body 13 of the air supply and exhaust cylinder 1 and a supply pipe 17 is accommodated in a frame body 14 of the instrument body 13, at the same time a hot air fan 34 is composed by a cross flow fan and is provided at the upper portion of the frame body 14, thus eliminating obstacles on the rear surface of the instrument body 13, and installing the instrument body 13 at the wall 2 perfectly.;COPYRIGHT: (C)2001,JPO