초록

A solar hot-water system having an absorber formed of plastic ducting adapted to be arranged unobtrusively on a roof surface whereby the water is heated by means of direct radiation from the sun and by means of conduction from the roof surface on which the ducting is supported.

대표청구항 ▼

Solar water-heating apparatus including a header having an inlet for water to be heated, a duct assembly, a manifold arranged to communicate with said header through said duct assembly, a hot water discharge outlet from said manifold, said duct assembly having a plurality of spaced-apart ducting mem

Solar water-heating apparatus including a header having an inlet for water to be heated, a duct assembly, a manifold arranged to communicate with said header through said duct assembly, a hot water discharge outlet from said manifold, said duct assembly having a plurality of spaced-apart ducting members each being adapted to communicate with, for through-flow between, said header and said manifold through a respective one of a plurality of spaced-apart, plug-in connections provided along said header and said manifold, said ducting being a resilient plastic extrusion member of indefinite length and having a plurality of substantially identical passageways extending longitudinally therethrough and disposed in spaced side-by-side relationship, and a roof sheet for supporting said ducting, said roof sheet having a rectantular body portion, upstanding complementary side engagement portions, said body portion extending between said upstanding complementary side engagement portions whereby said sheet may be connected in operative edge-to-edge overlapping relationship with a similar sheet at each side thereof and said rectangular body portion including a re-entrant recess extending parallel to said engagement portions and arranged to closely accommodate therein said resilient ducting whereby the latter may be operatively retained in said recess by forcing said ducting through the entrance of and into said re-entrant recess.