The highly respected Audel brand has provided practical references for skilled tradespersons and students for more than 100 years First volume in the all-new revision of the bestselling reference library for HVAC techs, plumbers, pipefitters, contractors, and electricians who need an inexpensive, comprehensive, and readable source of information Covers the basics of various heating systems (steam, electric, oil), insulation, heating calculations, and environmental considerations, including the most current environ-mental technologies and regulations, new calculations, and new HVAC technologies Includes the basics of installation, wiring, and troubleshooting for the different HVAC systems, with appendices that feature a trade organization listing, formula cross reference, data tables with conversions, and a manufacturer listing for the products covered in the book