We are in an old Cape Cod-style home and one of the previous owners installed a high-velocity SpacePak system for air conditioning. We desperately need to replace the major components of it because it is 20+ years old and every summer we cross our fingers and hope it holds out. Has anyone had one installed or repaired recently? I'm consulting Consumer Checkbook for recs, but not all HVAC companies work on them so wanted to check here, too. Appreciate any recs.