00000nam 2200000za 4500 9.689479 CaOODSP 20210624231920 cr ||||||||||| 150407s2007 onc|||||o f|0| 0 eng d 978-0-662-45443-4 CaOODSP eng n-cn--- M144-52/2007E-PDF Canada. Natural Resources Canada. Office of Energy Efficiency. Improving window energy efficiency [electronic resource] : why should I worry about my windows? Ottawa : Natural Resources Canada, c2007. 12 p. : figs. At head of title: ecoENERGY, an ecoACTION initiative. 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. 13-05-Supp 2013-02-27 Energy efficiency gcpds Home renovations gcpds Amélioration du rendement énergétique des fenêtres (CaOODSP)9.633888 Improving window energy efficiency : (CaOODSP)9.650615 Improving window energy efficiency (CaOODSP)9.687369 http://publications.gc.ca PDF 464 KB https://publications.gc.ca/collections/collection_2013/rncan-nrcan/M144-52-2007-eng.pdf