Audel HVAC Fundamentals, Volume 1: Heating Systems, Furnaces and BoilersA reference you'll warm up to From the background and basics of heating systems to the newest chip based technology, this first volume of Audel's HVAC Library gives you the comprehensive information you need on the job. ]Whether you're installing, servicing, repairing, or troubleshooting an old or new heating system, you'll find what you're looking for, from wood and coal furnace maintenance to new calculations and the latest environmental