I have an 1897 2-story Victorian in a historic district in central SC. The house has no subfloor under the flooring. Beadboard walls and ceiling throughout. 11' ceilings and very large rooms. When we bought the house 15 years ago, we had a HVAC contractor install central A/C and natural gas heat. Two systems: upstairs traditional split system, downstairs gas pack. The downstairs system has begun to fail (A/C) and we need to plan to replace it within 6-8 months. Having trouble locating a contractor who can give us good advice on a system. The company that has been doing preventive maintenance for the last 5 years is reluctant to take on the project because of the character of newer equipment and the results of our blower door test (28 stages ??) which shows the house is extremely loose. Can anyone give any guidance for contractors, equipment manufacturers, consultants? Tightening the house (sealing floors, replacing windows, insulating walls) is financially prohibitive. Any thoughts?
Thanks in advance,