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.
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.
Process heat installations for more than one kind of energy; one boiler for solid fuel and one for oil or gas and only one chimney; safety requirements and tests— 10 стр.