OK, so I was able to take advantage of a program that the city has going on to do Home Energy Audits on homes to help save energy. The company came out and did the audit along with a blower door test. My biggest problems we air leakage coming from my pull down stair case, whole house attic fan and some air leaks near the rim joist on my house. The blower door test results were: 0.64 ACH at -50 Pascal with the house drawing 3652 CFM. They had the total sqf of the house being 2308 (1500 1st floor). They said I should be down near 0.40 ACH.
When I called them to ask questions about the audit I asked if they did a manual “J” as well and they said yes. Looking over the report it looks as if a 2.5Ton unit is what it calls for but when the guy came to do the audit he didn’t measure any windows/doors and said he had the sqf of the house already. I showed him a drawing I had done that has all the room dimensions as well as window and door and he took a photo of it with his camera. So, I’m not sure looking over the report if you can tell if they used my info or just did a quick whole house manual J.
I did this to find out what leaks if any my house had so I can fix them and to find out what size HVAC should be used. Currently the house (ranch 1500sqf 1st floor) has a 16yr old Bryant 90PlusI 80KBTU with a 3Ton AC. The AC unit leaks but not bad that we have to charge it once a year. They gave me quotes for both a Bryant Hybrid HP and Water Furnace GEO system. I was surprised that the HP was only $3K less than the Geo once all the tax/rebate stuff was off. Still, the HP quote was close to $4K more than quotes I had last year when we first moved into the house. I also wanted a quote to just replace the AC but I did not get that and after seeing the prices for the other stuff I’m sure it would be too much.
Can anyone give me any feedback on my blower door results and what you make of the manual J report?