FINAL REPORT: Ductless Cold Climate Heat Pumps for Multifamily Applications

This study collected performance data, developed system design guidance, and produced installation best practice information of appropriately designed and implemented ductless cold climate air source heat pumps (ASHPs) in MN’s electrically heated multifamily buildings. Retrofit application of cold climate ASHPs to multifamily buildings is distinctly different from that in single-family homes. These differences must be recognized and effectively addressed for cold climate ASHPs to meet their savings potential in MN.