F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
257/21.3
F28F 3/12 (2006.01) F24D 3/14 (2006.01) F24J 2/26 (2006.01) F28F 21/06 (2006.01)
Patent
CA 1161834
ABSTRACT OF THE DISCLOSURE A heating device, particularly for the area heating of greenhouses, but which may be used for cooling, or as a solar panel, comprises a thermally insulating substrate preferably of expanded poly- styrene and preferably made up of abutting modules, and on which is arranged a flexible tube through which a heating or cooling fluid is passed from a fluid inlet to a fluid outlet located at the same edge of the substrate but at opposite end, thereof, the tube following a double serpentine path such that the incoming (hotter or cooler) part of the tube is adjacent to and at a substantially constant distance from the return (cooler or hotter) part of the tube. This leads to an increased uniformity of heat production or absorption over the surface of the substrate. The tube is preferably located in grooves in the substrate surface defining the serpentine path.
384978
Fetherstonhaugh & Co.
Hinds James F.
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