My fiancée and I are buying a new house. The heat has been turned down for the past few weeks to fifty four until we move in to conserve energy. We went there yesterday and turned it up to 65 so it can heat up for us to move in this weekend. After hours and hours of the heat running, the house has heated up to 59 degrees. No matter how many hours it runs, it just won't go above 59. What could be causing this problem? It is a baseboard heating system in an old house, but the furnace was put in new in 2004. Could it just be due to the cold temperatures outside and the old windows in the house, or are there other possililities that could be causing the house to not be able to heat up? Please help me... we are supposed to move in tomorrow and we can't do that of he heat won't go up any higher.