Patent ID: 6962150

Claim:
A modular swimming pool water heating system comprising a casing for mounting in an attic of a building; a heat exchange unit for removable mounting in said casing; an opening in said casing permitting access to the interior of the casing for receiving said heat exchange unit when the casing is mounted in an attic; a cover removably mounted on said casing for closing said opening, whereby said heat exchange unit can readily be mounted in said casing; an inlet manifold on said heat exchange unit for introducing swimming pool water into said heat exchange unit, said inlet manifold extending through said cover on said casing when the casing is closed; an outlet manifold on said heat exchange unit for returning water to a swimming pool, said outlet manifold extending through said cover on said casing when the casing is closed; inlet sleeves for removable attachment to one side of said casing for introducing air into the casing; fan units for removable mounting on a second side of said casing opposite said one side for drawing air into said casing and through said heat exchange unit; and elongated, flexible, ducts for connection to said inlet sleeves for receiving warm attic air from locations remote from said casing and feeding said air to said casing for passage through said heat exchange unit to heat any pool water circulating therethrough.