This weeks show reveals 3 tips on designing and building an energy efficient home design in Australia. We discuss the sun study that might be taken on your design and explain a bit more about the meaning of thermal mass and how it can effect your homes rating. Also a quick look at glass and how it will affect your rating and some of the options with double glazing or comfortplus glazing. Finally, an example as to why low volt down lights might ruin your energy efficiency and why.