Using Space Heating and Cooling to Reduce Energy Consumption

If your internal walls are, let's say, made of concrete or brick, inside the houseit takes a lot of energy to heat that up. The other thing too, is that often in europe, the houses are actually smaller. So you need less heating at night and maybe less cooling during the day. It is pretty interesting though, to see the way those numbers shake out. I mean, i did know that heating asas the biggest chunk, but if you look at both the eu, or the us, you look at either one,. You're well over 60 % in both cases.