There are about 17,000 heat networks in the UK: https://energysavingtrust.org.uk/business/consultancy-and-strategic-support/district-heating/ https://energysavi

There are about 17,000 heat networks in the UK: https://energysavingtrust.org.uk/business/consultancy-and-strategic-support/district-heating/ https://energysavingtrust.org.uk/business/consultancy-and-st... Only about 2% of the total heating used though...