
The Legacy of the Northwest Ductless Heat Pump Project
A Regional Champion of Ductless Heat Pumps for 14 Years Ductless (also called “mini-split”) heat pumps have quietly reshaped how Northwest homes get heated and cooled. For more than a decade the Northwest Ductless Heat Pump Project (NW DHP Project or NWDHPP) was the region’s coordinated effort, led by the Northwest Energy Efficiency Alliance (NEEA)