Installation structure of supply and exhaust for gas boiler

摘要

The present invention relates to an installation structure of an air supply unit and an air exhausting unit for a gas boiler, which can improve the productivity by reducing the number of assembling air and installing the air supply and exhaust air provided in the upper frame of the main unit more quickly and firmly.;The present invention is directed to a gas boiler in which a main body 210 of an air supply or exhaust port is seated and joined to a flange 220 of a main body 210 concentrically with a hole 260 provided in an upper frame 250 of the main body, A plurality of holes 222 in the form of concentric circles are formed and an engaging portion 224 extending from the hole 222 and bent downward at a right angle is integrally formed and the engaging portion 224 and the engaging portion 224 are formed around the hole 260 A plurality of fitting holes 252 are formed so that the engaging portions 224 are fitted into the fitting holes 252 so that the main body 210 can be fastened to the upper frame 250 It is effective.