District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
Heat exchangers - Guidelines to prepare installation, operating and maintenance instructions required to maintain the performance of each type of heat exchanger
Thermal solar systems and components - Custom built systems - Part 1: General requirements for solar water heaters and combisystems (CEN/TS 12977-1:2010)
Thermal solar systems and components - Custom built systems - Part 1: General requirements for solar water heaters and combisystems (CEN/TS 12977-1:2010)