Water Heating Device

Abstract

A water heating device which includes a thermally insulated water storage tank having a side wall and being configured to receive drinking water, a water inlet as an inlet for drinking water, a water outlet as an outlet for hot water, and a heating unit arranged inside the water storage tank adapted to heat water inside the water storage tank. The heating unit is inclined with respect to the side wall of the water storage tank, in particular at an angle other than 90° with respect to the side wall of the water tank.

1 . A water heating device, comprising:
 a thermally insulated water storage tank having a side wall and being configured to receive drinking water;   a water inlet as an inlet for drinking water;   a water outlet as an outlet for hot water; and   a heating unit arranged inside the water storage tank adapted to heat water inside the water storage tank;   wherein the heating unit is inclined with respect to the side wall of the water storage tank.   
     
     
         2 . The water heating device according to  claim 1 ;
 wherein the water storage tank comprises at least one recess adapted to receive at least a part of the heating unit.   
     
     
         3 . The water heating device according to  claim 1 ;
 wherein the recess is arranged at an inclination with respect to the side wall of the water storage tank.   
     
     
         4 . The water heating device according to  claim 2 ;
 wherein the recess is arranged at an inclination with respect to the side wall of the water storage tank.   
     
     
         5 . The water heating device according to  claim 2 ;
 wherein the recess is in form of a tube which is welded or glued to the water storage tank side wall; and   wherein a water immersable end of the tube is closed, and an opposite end of the tube towards the side wall is opened and is adapted to receive the heating unit.   
     
     
         6 . The water heating device according to  claim 3 ;
 wherein the recess is in form of a tube which is welded or glued to the water storage tank side wall; and   wherein a water immersable end of the tube is closed, and an opposite end of the tube towards the side wall is opened and is adapted to receive the heating unit.   
     
     
         7 . The water heating device according to  claim 4 ;
 wherein the recess is in form of a tube which is welded or glued to the water storage tank side wall; and   wherein a water immersable end of the tube is closed, and an opposite end of the tube towards the side wall is opened and is adapted to receive the heating unit.   
     
     
         8 . The water heating device according to  claim 5 ;
 wherein a length of the heating unit is less than a length of the tube so that a portion of the tube between an end of the heating unit and the side wall is not directly heated.   
     
     
         9 . The water heating device according to  claim 6 ;
 wherein a length of the heating unit is less than a length of the tube so that a portion of the tube between an end of the heating unit and the side wall is not directly heated.   
     
     
         10 . The water heating device according to  claim 7 ;
 wherein a length of the heating unit is less than a length of the tube so that a portion of the tube between an end of the heating unit and the side wall is not directly heated.   
     
     
         11 . The water heating device according to  claim 1 ;
 wherein the heating unit is inclined at an angle other than 90° with respect to a side wall of the water storage tank.