1. IEA, Heat Pumps - Tracking report, (2020). https://www.iea.org/reports/heat-pumps (accessed September 15, 2021).
2. RHC-Platform, Strategic research and innovation agenda for climate-neutral heating and cooling in Europe, Brussels (B), 2020. https://www.rhc-platform.org/content/uploads/2020/10/RHC-ETIP-SRIA-2020-WEB.pdf.
3. Residential net-zero energy buildings: Review and perspective;Wu;Renew. Sustain. Energy Rev.,2021
4. Heat pumps and our low-carbon future: A comprehensive review;Gaur;Energy Res. Soc. Sci.,2021
5. European Commission, An EU Strategy on Heating and Cooling - Communication from the Commission to the European Parliament, The Council, The European Economic and Social Committee and The Committee of the Regions, Brussels (B), 2016. https://eur-lex.europa.eu/legal-content/EN/TXT/?qid=1575551754568&uri=CELEX:52016DC0051.