Despite the previous year’s already high sales figures and the coronavirus pandemic, heat pump sales continued to grow. Over EUR 600 million was invested in the more than 100,000 heat pumps that were installed last year. EUR 6 billion has been invested primarily by house owners in Finland’s more than one million heat pumps – thus making this a major climate action. Every year, these heat pumps produce about one extra TWh of clean, combustion-free heating and cooling energy. In total, heat pumps produce approximately 12 TWh of energy per year. This corresponds to more than 15 % of the heating of Finland’s residential and service building stock. State aid granted for the replacement of oil heating drove sales especially of air-to-water heat pumps last year.