Hardcover, published by McGraw Hill Books, c1922 by Jon R Allen and J.H. Walker, Contents Include;Prefaces, Heat, Heat Losses from Buildings, Different Methods of Heating, Hot Air Furnace Heating, Properties of Steam, Radiators Steam Boilers, Steam Heating Systems, Pipe Fittings Valves and Accessories, Steam Piping, Hot Water Systems, Temperature Control, Air and Its Properties, Ventalation, Fan Systems for Various Types of Buildings, Design of Fan Systems, Air Washers and Air Conditioning, Central Heating, Some page yellowing, slight wear to cover edges, great diagrams and tables, Overall Good Condition!