I got an energy audit a couple of years ago and completet most of the main recommendations in the report. I am finally ready to replace our HVAC system and have shown this report to 3 different contractos and each one seems to give me a different answer in regards to the size/load of a new system.
Currently there are 2 systems -- gas furnace and A/C (a 2 ton and a 3 ton). The unit is about 10 years old and is rates at 80% efficiency with the A/C units coming in at 10 seer. The house is 3000 Sqft, and located in SF Bay Area -- so pretty mild climate.
Our duct system is a jumble of mess, so it will be completely replaced during this process (one of the main recommendations of the report)
My question is as follows: Given the attached report what size system is appropriate for our house -- both A/C and Furnace? It seems the contractors I am talking to are pushing a bigger system that the report indicates -- but then again the problem might be my amature eyes translating the report.