초록 ▼

An apparatus for heating water with solar radiation incorporates an auxiliary heating unit, external to the hot water reservoir and bypassing the solar heating element, for providing auxiliary water heating whenever the temperature in a selected portion of the reservoir decreases below a predetermin

An apparatus for heating water with solar radiation incorporates an auxiliary heating unit, external to the hot water reservoir and bypassing the solar heating element, for providing auxiliary water heating whenever the temperature in a selected portion of the reservoir decreases below a predetermined level. A common return conduit in combination with a single supply pump and a selector valve enable the auxiliary heating “by-pass”circuit to be simply and quickly added to already existing installations.

대표청구항 ▼

A hot water heating apparatus for heating and storing hot water using solar radiation, comprising: a hot water reservoir; a solar heating element having a water input and a water output for heating water circulating therethrough, fluid supply means for supplying said solar element with a water input

A hot water heating apparatus for heating and storing hot water using solar radiation, comprising: a hot water reservoir; a solar heating element having a water input and a water output for heating water circulating therethrough, fluid supply means for supplying said solar element with a water input; fluid return means connecting said solar element output to said water reservoir; an auxiliary heating unit, positioned external to said reservoir, said heating unit having a water input and a water output; auxiliary supply means for fluidly connecting said reservoir with said heating unit input; auxiliary return means for fluidly connecting said heating unit output with said fluid return means for returning heating unit heated water to said reservoir; and said fluid return means further including a single pump having a pump input and a pump output, for pumping water from said solar heating element and said auxiliary heating unit to said reservoir, and a selector valve for alternately connecting said pump input to said one of said solar element and said auxiliary return means.