Solar Water Heater Issues

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.

issues
Formally send out or make known
(issue) publish: prepare and issue for public distribution or sale; "publish a magazine or newspaper"
Supply someone with (something)
Supply or distribute (something)
(issue) an important question that is in dispute and must be settled; "the issue could be settled by requiring public education for everyone"; "politicians never discuss the real issues"
(issue) circulate or distribute or equip with; "issue a new uniform to the children"; "supply blankets for the beds"

solar
relating to or derived from the sun or utilizing the energies of the sun; "solar eclipse"; "solar energy"
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.
"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|).
Relating to or denoting energy derived from the sun's rays