Water based surface embedded heating and cooling systems - Part 5: Determination of the thermal output for wall and ceiling heating and for floor, wall and ceiling cooling; German version EN 1264-5:2021— 13 стр.
91.140.10 Central. Including burners and boilers for central heating systems / Системы центрального отопления. Включая горелки и котлы для систем центрального отопления
