All of us live in a several story beach house that has various bedrooms. Four of the bedrooms are upstairs on the minute story, but the master bedroom is on the lower floor in the southwest corner. For some reason, the heating plus air conditioner vents in the master bedroom just don’t seem to put out as much heating plus cooling as any of the other air vents scattered throughout the rest of the house. At first, I thought that maybe both of us had a blockage in one of the ventilation vents. I thought that maybe an creature had built a nest in there, or possibly there was a sizable dust ball or a piece of insulation blocking the air flow from the heating vents. But after I took the covers off of the ceiling vents plus the ductworks, I couldn’t find anything in either one of them. That made myself and others wonder if it wasn’t actually a problem with the ventilation ducts; maybe it was a problem with our heating plus air conditioner method itself. But our husband said that made no sense since the rest of the beach house was doing just nice with the same exact Heating & Air Conditioning system. That slimed it down to one thing. The master bedroom was built on the first floor of the house, which was built almost a hundred years ago. The minute floor addition was only added in the last twenty years. I started to suspect that the reason both of us weren’t getting much heating or cooling in the master bedroom wasn’t because our furnace plus air conditioner weren’t actually working officially – or that the vents were plugged. Perhaps the heating plus air conditioner were actually working just nice but the insulation in that section of the beach house was the problem!