Patent Number: 6,253,559

Title: Heating and cooling unit

Abstract: An apparatus for maintaining an enclosed space proximate a selected comfort range, and for conserving utilities, the apparatus comprising a housing in communicating relation with the enclosed space and the external environment and having an evaporative cooler for cooling the enclosed space and having a predetermined operating efficiency, and a spaced apart air conditioner for either selectively cooling or heating the enclosed space and having an operating efficiency different from the evaporative cooler, and a control mechanism for automatically and selectively switching back and forth from operation of the evaporative cooler to the air conditioner.

Inventors: Kinkel; Stephen W. (Phoenix, AZ), Goettl; Steven J. (Phoenix, AZ), Kinkel; Peter J. (Phoenix, AZ)


International Classification: F24F 11/00 (20060101); F24F 5/00 (20060101); F24F 1/02 (20060101); F28D 003/00 (); F28B 025/00 ()

Expiration Date: 07/03/2018