00000nam 2200000za 4500 9.687369 CaOODSP 20210624230940 cr ||||||||||| 150407s2004 onc|||||o f|0| 0 eng d CaOODSP eng n-cn--- M144-52/2004E-PDF Canada. Natural Resources Canada. Office of Energy Efficiency. Improving window energy efficiency [electronic resource]. Ottawa : Natural Resources Canada, 2004. 12 p. : illus. The catalogue number (M144-52/2004E) and ISBN (0-662-37837-7) for the print edition have been incorrectly copied in this electronic publication. Windows can account for up to 25 percent of total house heat loss. This fact sheet describes affordable and effective options to improve the energy efficiency of the windows in your house. 05-09 2005-03-04 Energy efficiency gcpds Amélioration du rendement énergétique des fenêtres (CaOODSP)9.631821 Improving window energy efficiency (CaOODSP)9.649378 Improving window energy efficiency (CaOODSP)9.689479 http://publications.gc.ca PDF 1217 KB https://publications.gc.ca/collections/Collection/M144-52-2004E.pdf