Patent ID: 8915015

Claim:
A solar greenhouse comprising: a structure defining an enclosure, the structure having a plurality of light transmissive panels; a plurality of rotatable positionable louvers disposed adjacent at least one of the plurality of light transmissive panels, the plurality of louvers having a reflective surface and an opposite absorbent surface, the plurality of louvers having a water circulating line extending axially along the absorbent surface coupled to a water line of adjacent plurality of louvers establishing a water system, the water line extending from each louver and forming an axle supporting rotation of the louver; a drive system for positioning the plurality of louvers in various positions with the surfaces selectively positioned for solar collection, radiant space heating, day lighting, the drive system including a helical sprocket about which a connecting drive chain is wrapped so that a number of the plurality of louvers may be simultaneously actuated; and the water circulating system interconnected to provide heated water to a storage tank.