Abstract

The present invention provides a solar water heating apparatus which includes concentric inner and outer vessels defining an annular cavity therebetween, within which cavity a phase change material is located, and which is vaporised when solar radiation is incident on the outer vessel, in order to transfer heat to a water store contained in the inner vessel, this water store being fed fresh unheated water while the heated water is extracted therefrom for domestic or other purposes.
Original languageEnglish
Patent numberEP2009/007961
Publication statusPublished (in print/issue) - 7 Nov 2008

Bibliographical note

Country: Europe
Commercialisation Status: market
Patent Application Date: 2009-11-06

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