Condensing type hot water boiler

Abstract

A condensing type hot water boiler comprises: a firebox casing that formulates a firebox in which fuel is combusted; a burner that ignites fuel furnished in the upper part of said firebox casing; a ventilator that supplies air to said firebox; a heat exchange casing, wherein heat is exchanged between hot water and the flame and combustion gas flowing in from said firebox, located at the lower part of said firebox casing; and a hot water coil formed to cover the inner wall of said firebox casing and in which hot water is received in the interior from said heat exchange casing for heat exchange with flame and combustion gas of the interior of said firebox.

What is claimed is: 
     
         1 . A condensing type hot water boiler comprising:
 a firebox casing that formulates a firebox in which fuel is combusted; a burner that ignites fuel furnished in the upper part of said firebox casing;   a ventilator that supplies air to said firebox;   a heat exchange casing, wherein heat is exchanged between hot water and the flame and combustion gas flowing in from said firebox, located at the lower part of said firebox casing; and   a hot water coil formed to cover the inner wall of said firebox casing and in which hot water is received in the interior from said heat exchange casing for heat exchange with flame and combustion gas of the interior of said firebox.   
     
     
         2 . The condensing type hot water boiler in  claim 1  further comprising:
 multiple fire tubes that are placed vertically erect in the interior or said heat exchange casing in which flame and combustion gas received from said firebox are flowing; and 
 an upper part panel board and lower part panel board that support said fire tube so that it stands erect in the interior of said heat exchange casing are included. 
 
     
     
         3 . The condensing type hot water boiler in  claim 2  wherein said firebox casing and said heat exchange casing are combined in a detachable condition; and further comprising joint pipe that supplies hot water from said heat exchange casing to the hot water coil within the interior of said firebox casing is further included.