Portable electrically heated animal drinking water container

A portable heatable water vessel for providing drinking water for animals and adapted to prevent water from freezing at temperatures to -20.degree. F., the water vessel comprising:

• (a) a first exterior container having a first upper edge, a first side wall and a first bottom wall, the first exterior container being made of rubber;
• (b) a second interior container having a second upper edge, a second side wall and a second bottom wall, wherein the second side wall has an exterior surface and an interior surface, the second side wall being made of rubber, wherein the second container is nested in spaced relationship within the first container such that the second upper edge comprises a roll-over rim which extends over the first upper edge, wherein the spaced relationship creates an enclosed uninterrupted air pocket between the side walls and bottom walls of the first and second container, wherein the first and second container are nested together in sealing engagement, and wherein the first and second containers are sealed together by a nonporous breakable adhesive;
• and
• (c) an electric heating cable wrapped around the exterior surface of the second side wall and in contact therewith to provide heat to the vessel.