An investigation of heating, ventilating, and air conditioning systems including: 1) system selection; 2) study of the basic systems available for residential, commercial, and industrial buildings; 3) sizing and selection of equipment; 4) heat loss and gain calculations; 5) duct and piping design; 6) basic comfort provided by various systems; 7) available products; 8) their purchase and operating costs. The course develops: knowledge of the vocabulary of the industry; knowledge of the size and function of equipment. The course includes field trips to see various systems in operation as well as discussions with suppliers. Readings are supplemented with design of systems, tests, and development of a reference notebook.