District heating
Space-heating systems
Heat pipes
Pipes
Pipelines
Pipework systems
Water
Underground
Pipe fittings
Valves
Thermal insulating materials
Bonding
Fluid equipment
Measuring instruments
Performance
Electric wires
Link: BS EN 14419:2019 District heating pipes. Bonded single and twin pipe systems for buried hot water networks. Surveillance systems
Source: BSI Standards
