Ductless Heat Pumps, commonly referred to as "DHPs" or "mini-splits", are becoming more common in the Northwest for both retrofits and new construction. This measure, specific to single-family residential new construction, applies to Oregon, Idaho, and Montana. (To learn more about the specific measure applications by state, see the bottom of the page.)
All measure applications are currently considered Planning due to outstanding research questions on:
- In-situ energy savings of DHPs in single-family new construction; and
- Rates at which DHPs, high efficiency water heaters, and other technologies are used to meet or exceed Northwest building codes.