Twenty-eight chapters and numerous drawings provide information for instructors and students of air conditioning and heating technology. Chapter 1 lists the occupational opportunities in the field. Chapter 2 covers the background or development of the industry of air conditioning and heating technology. Chapter 3 includes some of the principle factors that affect human comfort, and Chapter 4 covers psychrometrics. The remaining chapters focus upon: The Psychrometric Chart, Applications of the Psychrometric Chart, Heat Transfer, Factors Affecting Air-Conditioning Cooling Loads, Cooling Load Calculations, Selection of Equipment for Cooling, Technical Principles of Air Flow, Designing of Duct Distribution Systems, Duct Sizing, The Mechanics of Duct Systems, Duct Installation Design, Cooling Towers, Water Treatment, Heating Load, Calculating Heating Loads, Selecting Heating and Humidifying Equipment, Hydronic Heating and Cooling, Heating Boilers and Furnaces, Operation and Maintenance of Boilers and Furnaces, Chimneys and Flue Draft, Domestic and Commercial Oil Burners, Basic Instrumentation, Measure and Control Instrumentation, and Applications of Instrumentation to the Air Conditioning and Heating Technology. (HD)