Chimneys - Connecting flue pipes for heat generating systems - Metal pipes and fittings for flue gases from domestic heat generating systems for operation under negative pressure conditions— 9 стр.
Self adjusting valves operated on auxiliary energy; regulating device with or without shutting-off (zero-shut-off), class R<(Index)m> and R<(Index)o>— 2 стр.
Safety requirements for heating installations with flow temperatures up to 110°C; open and closed heating installations and boilers with a watervolume of max. 10 litres up to 150 kW with thermostatic safety protection— 8 стр.