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The Heat Network (Metering and Billing) Regulations 2014

The Regulations place responsibilities on anyone supplying and charging for heat, cooling or hot water (called the "Heat Supplier").

District heating pipe in trench

These include the following responsibilities:

  • To notify NMRO of the existence of their network
  • To fit heat meters where appropriate to accurately measure, memorise and display the consumption of final customers
  • In buildings with more than one final customer, to fit Heat Cost Allocators (HCAs), hot water meters, and Thermostatic Radiator Valves (TRVs) to measure the consumption of final customers where installing heat meters is not feasible
  • To ensure heat meters or HCAs are continuously operating, maintained and periodically checked for errors
  • To bill customers fairly, transparently and based on actual consumption where cost effective to do so.

Further information:

See the full Heat network metering and billing regulations: compliance and guidance document at