| 摘要 |
PCT No. PCT/GB85/00495 Sec. 371 Date Jun. 30, 1986 Sec. 102(e) Date Jun. 30, 1986 PCT Filed Oct. 31, 1985 PCT Pub. No. WO86/02713 PCT Pub. Date May 9, 1986.Roof installations consisting of an array of interfitting members e.g. tiles, strips (3), slats or the like which interfit to form a roof covering and a set of heat pipes (7) which run parallel to the plane of the roof (6,1). Heat is abstracted from the heat pipes and used directly or indirectly, e.g. via a heat pump apparatus. Solar energy may thus be captured, as well as ambient energy, e.g. arising from the building below.
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