I was having issues with my heater, it was a bit to cold in my house but in other areas it was too hot, a tech came out to see what the problem was, after an evalution of my furnace (which he said was working perfectly and a good one at that) someone else told me i needed a new one, he suggested me getting another return in the hallway on the other end of my house, which will redirect the heat to all areas of my home, but in the meantime he closed a few vents slightly and opened the airwaves in others more, until i will get the work done which is a more in my price range then a whole new furnance that wasnt needed, while he was in my attic he stated it was insulated well and the air ducts were good, that was nice to hear as well and it was offered, nice to know there are still honest techs out there.