Does turning the thermostat down on a winter's night offset the costs of reheating the house in the morning? What will best prevent energy loss: new windows or insulation in the attic? Is heating oil cheaper than natural gas? Blending science with anecdote and example, Colin Smith answers questions like these, providing an insightful guide to creating an environmentally friendly home without sacrificing comfort.

Colin Smith is a UK-based associate lecturer for both the Manchester Metropolitan University and the Open University, where he teaches courses related to consumer issues and the environment. He has recently retired and now enjoys writing for a wider audience.