<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type> A textbook and reference work in one, this book also serves as an enhanced formulary for the highly networked fields of energy technology, building services, and utility systems. It illuminates key interrelationships between these fields. For the purposes of practical planning and calculations, it always includes the relevant DIN standards.