Heat pumps are a highly efficient heating and cooling technology that could significantly reduce carbon emissions in electrically heated buildings. This TAF study explores the energy savings and emissions reduction potential that the accelerated adoption of heat pump technology offers in Ontario’s electrically-heated multi-unit residential building (EMURB) sector. This market characterization examines the number, characteristics, and distribution of EMURBs in Ontario. Note: This file is optimized for digital use. For the print version, please click here.