1. Energy use data handbook: 1990 and 1998 to 2004;Behidj,2006
2. Solar water heating: a comprehensive guide to solar water and space heating systems;Ramlow,2006
3. Solar thermal engineering: space heating and hot water systems;Lunde,1980
4. Weiss W, Faninger G. Solar thermal collector market in IEA member countries. Prepared for the International Energy Association; 2002. Available from: [accessed November 6, 2007].
5. Survey of active solar thermal collectors, industry and markets in Canada, 2005,2006