AHR Expo — International Air Conditioning, Heating, Refrigeration Exposition, Jan. 25-27, Orlando, FL ahrexpo.com.
NADCA — National Ar Duct Cleaners Association, Annual Meeting, Tucson, AZ, Mar. 27-30; nadca.com
MCAA — Mechanical Contractors Association of America, Annual Conference, San Francisco, CA, Mar. 28-April 1; mcaa.org/mcaa2010
ACCA — Air Conditioning Contractors of America, Conference & Indoor Expo, Mar. 7-9 Tampa, FL; accaconference.com