From its Eastern Shore of Maryland headquarters, The Whalen Company manufactures vertical stack fan coil units and water-source heat pumps for multi-story buildings across North America. The company originated the vertical stacked fan coil and heat pump concepts, and its 144,000-square-foot facility supports 140 employees. Whalen also maintains replacement support for its equipment dating to the early 1970s, supplying exact-fit parts and units for older systems.