Temperature Equipment Corp., Lansing, IL, an independently owned HVAC distributor, acquired Excelsior Manufacturing & Supply, Itasca, IL, a Midwestern HVAC distributor and sheet metal manufacturer. TEC provides Carrier equipment, controls, parts and supplies for residential, business and industrial applications throughout Chicago and surrounding areas. Excelsior, a privately owned, 128-year-old business with seven branches in Illinois, Indiana, Kansas, Missouri and Minnesota, will continue to operate independently and separately from TEC as National Excelsior Co.