Audel HVAC Fundamentals
Volume 1: Heating Systems, Furnaces and Boilers
Chapter One
Introduction
This series is an introduction to the basic principles of heating, ventilating,
and air conditioning (HVAC). Each represents a systematic
attempt to control the various aspects of the environment within an
enclosure, whether it is a room, a group of rooms, or a building.
Among those aspects of the immediate environment that people
first sought to control were heat and ventilation. Attempts at
controlling heat date from prehistoric times and probably first
developed in colder climates, where it was necessary to produce
temperatures sufficient for both comfort and health. Over the years
the technology of heating advanced from simple attempts to keep
the body warm to very sophisticated systems of maintaining stabilized
environments in order to reduce heat loss from the body or the
structural surfaces of the room.
Ventilation also dates back to very early periods in history.
Certainly the use of slaves to wa ... read full excerpt from Audel (TM) HVAC Fundamentals Volume 1 Heating Systems, Furnaces and Boilers, All New 4th Edition ebook
