Insulating support base for a cylindrical electric hot water tank

An insulating support base for supporting a cylindrical electric water heater tank, said base being formed of rigid molded foam material and defining a circular base having a flat bottom wall with a concentrically disposed support dome on a top face thereof and shaped for close fit within a bottom cavity of said tank for support engagement with a dome shaped bottom wall of a casing of said tank, said support dome having an angulated outer side wall for guiding a lower flange edge of said inner casing to permit same to be automatically centered on said support base in sealing engagement therewith, a spacer ledge defined about said support dome and extending to an outer edge of said flat circular base, said spacer ledge accommodating an insulating jacket positioned about said tank inner casing with said outer edge of said flat circular base being disposed in close fit within a lower marginal edge portion of an outer cylindrical casing of said tank to position said outer casing equidistantly spaced about said inner casing with said insulating jacket therebetween.