The current solar water heating technologies, as well as their applications, are examined in this review article. High temp water is presently used in private, business, and modern settings. To warm water and produce steam, a few energizes like diesel, coal, and gas are used. Sunlight based energy is the most widely recognized option in contrast to conventional energy sources. The sunlight based warm water warming framework is a procedure that utilizes the plentiful free sun oriented nuclear power to warm water. The sunlight based warm framework was made to satisfy the energy prerequisites. The size of the not entirely set in stone by the accessibility of sunlight based radiation, the client's temperature prerequisites, the topographical area of the nearby planet group, and different variables. Subsequently, the sunlight based water warming framework should be planned by the previously mentioned standards. The existing literature is examined in order to get a better understanding of the solar thermal system's design, layout, uses, and size