AUTHOR: Daniel Chiras. 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. Dan Chiras, who also authored The Natural House, brings these principles to a new level in this book. You learn how to select a cost effective, energy efficient back-up system; how to preserve air quality in an air-tight home; ways to employ "green" building materials in a naturally conditioned home. You'll also learn about new diagnostic aids available as printed worksheets or in software format that will help you properly design your new home. This is a quality soft cover with loads of good black and white photos and easy to read charts and graphs. 8" x 10" format, 274 pages. Fast, Free Shipping from our own warehouse! If you prefer to order by phone call 866.596.9982 or click "add to basket" to order using our secure server.