500 Plain Answers to Direct Questions on Steam, Hot Water, Vapor and Vacuum Heating: The Science and General Practice of Heating, Including Modern Systems of Modified Heating, Explained in a Series of Plain Questions and Answers, with Tables, Rules and General Information, Forming a Complete Text Book and Manual for the Apprentice and Journeyman Steam Fitter. A Reference Book for Master Fitters, Architects and Heating Contractors
Alfred Grant King
Free