Purchased this unit new in June for $3500. Take best offer. Performance: The unit maintains 100% heating capacity at 5°F and 90% at -13°F. This is an extremely efficient unit that can connect to a variety of indoor unit types and can handle three zones (indoor units). Only lifted up box to take pics. Heavy! In original box covered in original plastic. Brand new. I bought the needed mini splits on EBay for a few hundred each with correct size for each room. I installed this same system. Two of them.