A heating network is a series of pipes used to supply heating and hot water to an entire neighbourhood, city or metropolitan area.

In some cases, facilities used to supply a network with heat can also be used to generate electricity: this is known as cogeneration. Cooling networks use the same principle to provide air conditioning for a group of buildings.

France had more than 750 heating networks in 2017. The energy transition act targets a fivefold increase in the amount of renewable energy and recovered energy distributed through these networks by 2030 as part of the drive to promote sustainable development. Such solutions provide a clean, cost-effective source of heating to tackle fuel poverty.