Water heating apparatus and system
First Claim
1. A fluid heating apparatus comprising a body defining a chamber for containing a quantity of fluid to be heated, the chamber having a fluid inlet and a fluid outlet spaced apart in a first axial direction;
- and means for heating the fluid in said chamber, the heating means being located in said chamber between said fluid inlet and fluid outlet, the heating means comprises a hollow body having a flow inlet and a return outlet to allow a heating medium to flow through said hollow body, wherein said hollow body comprises a first heat exchanging surface extending along the chamber in said first axial direction between said fluid inlet and said fluid outlet, said first heat exchanging surface facing an internal surface of said chamber to define a passage for said fluid therebetween, said passage extending in said first axial direction.
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Accused Products
Abstract
A fluid heating apparatus comprising a chamber for containing a quantity of fluid to be heated and a heating device in the chamber. The heating device comprises a hollow body having a flow inlet and a return outlet to allow a heating medium to flow through the hollow body. The hollow body has a first heat exchanging surface extending along the chamber between a fluid inlet and fluid outlet and defining a smooth, straight fluid passage between the inlet and outlet. The preferred apparatus takes the form of a thermosyphon and is particularly suited for use with a water storage tank, where it is arranged to cause thermosyphonic circulation of water between the thermosyphon and the tank.
23 Citations
37 Claims
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1. A fluid heating apparatus comprising a body defining a chamber for containing a quantity of fluid to be heated, the chamber having a fluid inlet and a fluid outlet spaced apart in a first axial direction;
- and means for heating the fluid in said chamber, the heating means being located in said chamber between said fluid inlet and fluid outlet, the heating means comprises a hollow body having a flow inlet and a return outlet to allow a heating medium to flow through said hollow body, wherein said hollow body comprises a first heat exchanging surface extending along the chamber in said first axial direction between said fluid inlet and said fluid outlet, said first heat exchanging surface facing an internal surface of said chamber to define a passage for said fluid therebetween, said passage extending in said first axial direction.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A heating system comprising a storage tank for a fluid;
- and an apparatus for heating said fluid, said heating apparatus including a chamber for containing a quantity of said fluid and means for heating the fluid in said chamber, wherein said apparatus has a fluid outlet provided at the in use top end of the chamber and which is in fluid communication with an in use upper portion of said tank, and a fluid inlet provided at or adjacent a lower end of said chamber and which is in fluid communication with an in-use lower portion of said tank, said fluid communication being substantially unrestricted to allow thermosyphonic flow of fluid between the storage tank and the apparatus during use.
- View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
Specification