Solar Water Heater System

water heater
a heater and storage tank to supply heated water
Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have many uses.
An appliance for supplying hot water for purposes other than space heating or pool heating.

system
A set of connected things or parts forming a complex whole, in particular
A set of things working together as parts of a mechanism or an interconnecting network
instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small computer"
a group of independent but interrelated elements comprising a unified whole; "a vast system of production and distribution and consumption keep the country going"
(physical chemistry) a sample of matter in which substances in different phases are in equilibrium; "in a static system oil cannot be replaced by water on a surface"; "a system generating hydrogen peroxide"
A set of organs in the body with a common structure or function

solar
relating to or derived from the sun or utilizing the energies of the sun; "solar eclipse"; "solar energy"
"Solar" is a musical composition attributed to Miles Davis on the studio album Walkin', considered a modern jazz standard. There is disagreement concerning the exact pronunciation of the tune (|?sol?r| or |?solar|).
Of, relating to, or determined by the sun
Solar is an American fictional comic book character. Originally known as Doctor Solar, Man of the Atom, he first appeared in a comic book published by Gold Key Comics in the 1960s.
Relating to or denoting energy derived from the sun's rays