Patent ID: 6073858
Filing Date: 2000-06-13
Classification: B60H,F28D,F28F

Abstract:
A hot-water type heating apparatus comprising:a duct for forming an air passage;a heat exchanger, disposed in said air passage, for heating air passing therethrough using hot water as a heating source; anda flow rate control valve for controlling a flow rate of hot water supplied to said heat exchanger, wherein:said heat exchanger includesa core portion, having a plurality of tubes disposed in parallel, for performing heat-exchange between hot water flowing through said tubes and air in said air passage,an inlet side tank connected to one end of said core portion,an outlet side tank connected to the other end of said core portion,an inlet pipe through which hot water flows into said inlet side tank, andan outlet pipe through which hot water from said outlet side tank is discharged;said heat exchanger is disposed in said air passage in such a manner that hot water from said inlet side tank flows into said outlet side tank through said tubes in one way;said inlet side tank has a plurality of inner spaces partitioned from each other; andsaid inner spaces are formed in said inlet side tank in such a manner that hot water from said inlet pipe is divided to pass through the inner spaces, and flows into said tube of said core portion through said inner spaces.