So we had somebody stop by the house today. He was a Lutheran minister that grew up in the house. Wanted to reminisce. And told me some things that have me curious. Three rooms upstairs have no heating/cooling. He said they put in floor vents to heat from downstairs. So I'm on the search. I know where it is in one room, but the nursery I'm not POSITIVE. We can tell there's uneven floor but that's the one room the carpet is actually installed correctly... I'm going to have to tak to hubby about this. If we can uncover those vents and make them usable before winter sets in, we won't have to buy space heaters!