Lower temperatures (55–70 °C supply) that cut losses and let heat pumps and waste heat feed the network economically.
From our guide: Decarbonizing District heating — full context, charts and sources there.
Boilers, kilns, heat exchangers, valves and steam lines lose energy continuously. Inzonex makes patented (UK GB2508992.1) removable modular insulation — snap-fastened covers engineered per temperature tier, not generic off-the-shelf jackets: