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Welcome to Fenwal Catalog

Founded in 1935 as the manufacturer of the patented THERMOSWITCH® temperature controller, Fenwal Controls provides agency-approved standard and custom engineered gas ignition and temperature controls for many industries including HVAC, hydronics, commercial cooking, and fire protection. The Fenwal brand of temperature and gas ignition products is widely recognized for its high quality and reliability, and all Fenwal products are designed to provide excellent performance in the most demanding applications.In addition to being a leading supplier of gas ignition and temperature control components, Fenwal’s applications lab is available to provide extensive product configuration & development services to commercial and industrial manufacturers.