Open AccessEstimating the heating seasonal operating cost of residential hybrid heat pump systems, including units retrofitted to oil, gas and electric furnaces
Author(s) -
George E Kelly,
Piotr A. Domanski
Publication year - 1980
Language(s) - English
Resource type - Reports
DOI - 10.6028/nbs.ir.80-2090
Subject(s) - heat pump , environmental science , petroleum engineering , oil pump , automotive engineering , waste management , engineering , mechanical engineering , heat exchanger