Dual compartment electric water heater
OwnerArieh Hadarinventor
Life of this patent
Estimating the term…
Abstract
A domestic electric water heater includes inner and outer water heating compartments in thermal communication with each other and arranged for free thermal circulation of water therebetween. First and second electric heating elements, individually controlled at different temperatures by separate thermostats responsive to the temperature of the water in the outer compartment, are provided in the inner compartment for directly heating the water therein. First and second groups of water preheating pipe windings, connected in series, are located at the lower and upper portions, respectively, of the outer compartment in heat exchange with the water therein.
Claims7
An electric water heater, particularly for domestic use, having a cold water inlet and a heated water outlet, comprising:
- first and second water heating compartments in thermal communication with each other and connected such as to permit a thermal circulation of water between them;
- at least first and second electric heating elements provided within the first compartment, each individually controlled by a separate thermostatic device responsive to the temperature in the second compartment;
- first and second heat exchanging circulation conduits in fluid flow communication with each other, provided at a lower and an upper portion of the second compartment, respectively, said cold water inlet being connected to said first circulation conduit;
- an intermediate water outlet in communication with said second conduit provided within said first compartment for supplying water flowing through said second circulation conduit to said first compartment;
- and an intermediate water inlet located at an upper portion of said second compartment and connected to said heated water outlet.
Dependencies are inferred from the claim text.