Here's how heat pumps became a success story in Scandinavia

· Watch 02:06
undefined

Sweden, Norway and Finland each boast at least 40 heat pumps for every 100 households. That’s more than any other country in the world, despite being the 3 coldest countries in Europe. Heat pumps are an electrically-powered, low-carbon way to heat homes. They capture thermal energy from the air outside and use it to warm the house.