TY - RPRT TI - ResStock Measure Documentation: Residential Two-Stage Geothermal Heat Pump (4.0 COP, 20.5 EER) With Light Envelope Improvements AU - Brossman, Jes [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0009000376383378) AU - White, Philip [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0000000300919060) AU - Lou, Yingli [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0009000541422562) PY - 2026 DO - 10.66816/tp3652450 UR - https://www.osti.gov/biblio/3683896 ID - 3683896 ER -