From humble beginnings, R.A. Heating & Air Conditioning, Inc. has grown into a highly respected and highly regarded business that is widely renowned throughout the entire state. Founded on April 15, 1980 by Ron and Connie Arndt, R.A. Heating & Air Conditioning, Inc. originated out of the trunk of their car. The office was in their home, with a shop in the basement of the present Baker Block Apartments, downtown Evansville.