Patent ID: 8603337

Claim:
An apparatus for heating and purifying water, comprising: an outer container having an opening for addition of raw water to a predetermined level therein; a membrane assembly operatively attached with said outer container; a chemical formulation selected to be capable of initiating a chemical reaction to generate heat and gaseous products when mixed with a reaction initiator; an inelastic inner container arranged inside the outer container so as to define a volume therebetween in which the raw water is confined, and configured with an opening located above the predetermined level of raw water so as to hold said chemical formulation while preventing the chemical formulation from unintentionally mixing with the raw water confined within the volume and allowing gaseous products generated therein to escape into the outer container through the opening in the inner container, wherein the inelastic inner container and the outer container are so configured and arranged to transfer heat from the inelastic inner container to the raw water in the outer container and to allow gaseous products of the reaction to escape the inelastic inner container into the outer container and, wherein the outer container has a closure configured to close the opening of the outer container so as to trap gaseous products of the reaction and generate pressure in the outer container to force raw water through the membrane producing hot, purified water.