Water heater casing

Abstract

A water-heater casing has a barrel, two covers and a chamber. The barrel has a cylindrical body and at least one hump and two open ends. The at least one hump is formed from the cylindrical body and has at least one tangential side. The covers are respectively mounted on the open ends of the barrel. The chamber is formed between the cylindrical body, hump and covers and corresponds to a water tank and components. The water-heater casing saves space and is attractive.

1 . A water-heater casing comprising:
 a barrel having
 a cylindrical body; and 
 at least one hump formed with the cylindrical body and having
 at least one tangential side formed tangentially from the cylindrical body; and 
 a connection side formed with the at least one tangential side; 
 
 an open top end; and 
 an open bottom end; 
   a top cover corresponding to and being mounted on the open top end of the barrel; and   a bottom cover corresponding to and being mounted on the open bottom end of the barrel.   
     
     
         2 . The water-heater casing as claimed in  claim 1 , wherein
 the barrel has one hump; and   the connection side of the hump is a tangential side.   
     
     
         3 . The water-heater casing as claimed in  claim 1 , wherein the barrel has two humps. 
     
     
         4 . The water-heater casing as claimed in  claim 3 , wherein the connection sides of the humps are adjacent to each other. 
     
     
         5 . The water-heater casing as claimed in  claim 3 , wherein the connection side of each hump is a tangential side. 
     
     
         6 . The water-heater casing as claimed in  claim 1 , wherein the barrel has three humps comprising a central hump formed between two adjacent humps, and the connection sides of the adjacent humps are adjacent to the central hump. 
     
     
         7 . The water-heater casing as claimed in  claim 6 , wherein the connection sides of the adjacent humps are tangential sides. 
     
     
         8 . The water-heater casing as claimed in  claim 6 , wherein the central hump has two tangential sides. 
     
     
         9 . The water-heater casing as claimed in  claim 7 , wherein the central hump has two tangential sides. 
     
     
         10 . The water-heater casing as claimed in  claim 3 , wherein the humps are different sizes. 
     
     
         11 . The water-heater casing as claimed in  claim 4 , wherein the humps are different sizes. 
     
     
         12 . The water-heater casing as claimed in  claim 5 , wherein the humps are different sizes. 
     
     
         13 . The water-heater casing as claimed in  claim 6 , wherein the humps are different sizes. 
     
     
         14 . The water-heater casing as claimed in  claim 1 , wherein the bottom cover has multiple through holes. 
     
     
         15 . The water-heater casing as claimed in  claim 2 , wherein the bottom cover has multiple through holes. 
     
     
         16 . The water-heater casing as claimed in  claim 3 , wherein the bottom cover has multiple through holes. 
     
     
         17 . The water-heater casing as claimed in  claim 4 , wherein the bottom cover has multiple through holes. 
     
     
         18 . The water-heater casing as claimed in  claim 5 , wherein the bottom cover has multiple through holes. 
     
     
         19 . The water-heater casing as claimed in  claim 6 , wherein the bottom cover has multiple through holes.