Northwest Ductless Heat Pump Initiative: Market Progress Evaluation Report #4

This report is the fourth Market Progress Evaluation Report (MPER) of the Northwest Energy Efficiency Alliance’s (NEEA’s) NW Ductless Heat Pump Project (Initiative). NEEA launched the Initiative in 2008 as a pilot that set out to demonstrate that ductless heat pumps (DHPs) were a viable technology to displace electric resistance heat in existing homes. The full Initiative launched in 2010.