In recent years, heat pumps have emerged as a promising new form of technology with a relatively low environmental impact. Moreover, they have presented householders with an opportunity to reduce their heating bills. Heat pumps can heat a building by 'pumping' heat from either the ground or the air outside: an intriguing process which utilizes principles that are somewhat analogous to those employed in the domestic refrigerator. Written by an experienced engineer well-known in heat pump circles, this book is aimed at both householders and potential installers. It gives a broad and balanced view of a seemingly perplexing topic. Describes what a heat pump is, how it works, the different methods of pumping heat and the importance of an appropriate and well-planned installation Examines the air, the ground and water as sources of heat and explains how to make an informed choice Considers the all-important subject of distributing the heat through radiators or through an under-floor system Covers hot water production and delivery to the taps Outlines environmental and financial issues associated with heat pumps Dispels some common misconceptions and presents a number of case studies Includes facts and figures and an invaluable glossary
