I am very interested in your thread. Nice work so far too
. You shop at Goodwill too, one of my favorite places to check , right up there with garage sales!
I have been wanting to mess around with heat pumps. I can get ahold of old ac units and dehumidifiers but have been afraid to mess with the original plumbing. It's just something I haven't had much hands-on experience with. What did you have to do to the Ac unit you converted in the picture you posted in the beginning of the thread?