InverterFlex designs are ductless heat pumps for all-season convenience. The Model # for our unit is 8-VMH12FC-1. This version is 2 years old and has the capability to warm up to 13000BTU and amazing 12000 BTU. We have 2 systems however the model we are selling could have up to 3 air conditioners connected. Each device has the ability of cooling down approximately 5 spaces or 1 big room. This system comes with 2 remotes, random swing choice and a timer setting.