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299A. Super Windows Part 1 - LiteZone R22 glass units most efficient in the world
b'GREEN ENERGY FUTURES CKUA PODCAST PART 1 - We take a tour of the LiteZone plant where they are producing the most energy-efficient windows in the world. These glass units have two panes of glass and anywhere from one to eight films producing unheard-of insulation levels ranging from R 6.8 to R 22. \\nGreen Energy Futures CKUA Podcast.'