In 1904 American Warming and Ventilating was created as a division of American Furnace and Foundry Company in Bloomington, Indiana. The company began as a regional contractor that installed gravity heating systems. Today, architects, mechanical engineers, contractors and facility owners rely on American Warming and Ventilating to meet their ever-changing damper and louver designs and cost requirements through product innovation and technological advancement. Our headquarters, located in Bowling Green, Ohio, is the central hub, but our vast representative base throughout the nation is available to help you find the right product for your project.