Canfield Technologies has hired the following rep firms:

Martin L. Kornstein, Roslyn Heights, NY, to cover northern New Jersey, Connecticut, metro New York and southern New York State; McCain Sales Co., Birmingham, AL, for Alabama, the Florida Panhandle, Mississippi and Tennessee; Mullen Corp., St. Petersburg, FL, to cover Florida; and Nichols Hamilton & Associates, St. Petersburg, FL, for the HVAC market in Florida.