Established in 1955, Temtrol specializes in the design and manufacturing of air-handling units and replacement coils for commercial and industrial users. The company s product line includes fan coil units, and heating and cooling coils. Its customers include the owners and builders of office buildings, manufacturing and retail facilities, schools and hospitals. The company also offers a wide range of components, such as fans, isolation bases, fan shafts, damper blades and louvers. Additionally, it provides various electrical components, including vapor proof lights, control circuit transformers, light switches and electrical panels. The company offers several types of coils, such as chilled, direct expansion, condenser, steam distributing, standard steam and hot water booster coils. Temtrol has a test laboratory that specializes in testing of airflow, thermal and acoustical performance of units manufactured by the company. It is located in Okarche, Okla.