Water based surface embedded heating and cooling systems - Part 5: Heating and cooling surfaces embedded in floors, ceilings and walls - Determination of the thermal output; German version EN 1264-5:2008— 12 стр.
91.140.10 Central. Including burners and boilers for central heating systems / Системы центрального отопления. Включая горелки и котлы для систем центрального отопления
