Copyright 2018 South Dakota Chapter of ASHRAE. This Website Is Maintained By The South Dakota Chapter Of The American Society Of Heating, Refrigerating, And Air Conditioning Engineers, Inc. (ASHRAE). Website is maintained by John Schwartz (JSchwartz@climatesystemsinc.com) It Does Not Present Official Positions Of The Society Nor Reflect Society Policy. AHSRAE Chapters May Not Act For The Society And The Information Presented Here Has Not Had Society Review.