We're going to talk about a number of energy wasters in your home, but the one that I think is probably the most common improperly sized heating and air system or duct work. Because we see it day in and day out, it's hard to police it. there's inspections on new construction, but it's rarely caught a lot of cases. It's not a huge deal at face value, but then you start to add up the problem over years and years and years and you start to see what could be hundreds if not thousands dollars thrown away because of this one energy waster.