Heating and Cooling Systems

Abstract

Technological advancements that have been introduced since World War II have made contemporary homes more energy efficient. Since building envelopes are more airtight, there is an increased concern for indoor air quality (see chapter 9) and, with it, a need for mechanical ventilation. The selection of heating, ventilating, and air- conditioning equipment is made complex because of the wide variety of available systems. Choosing between a simple solution and an advanced alternative will depend on size of dwelling, configuration, grouping of units, and budget, among other factors. This chapter reviews various heating and cooling systems and examines their efficiency as well as their constraints. It is important to note, however, that prior to including mechanical systems, designers should do their utmost to consider natural means of ventilation that do not burden the environment and consume energy.