The Solar House; Passive Heating and Cooling by Daniel D Chiras. Introducing "Natural Conditioning" While heat from sunlight and ventilation from breezes is free for the taking, few modern architects or builders really understand the principles involved. Yet "natural conditioning" - heating and cooling with passive solar techniques - is a viable alternative to fossil fuels. Chiras sets the record straight on the vast potential for passive heating and cooling. acknowledging the good intentions of misguided solar designers in the past, he highlights certain egregious errors and shows how to avoid them. In methodical detail he provides contemporary home builders with all the necessary tools for successful solar design. You will learn how to select a cost-effective, energy efficient, and environmentally friendly backup heating system; how to preserve indoor air quality in an airtight, energy-efficient home; ways of employing green building materials in a naturally conditioned home.