Oval reduction piece (bottom)
Element that allows to change the chimney duct from oval to round. There is a round muff on one side and an oval one on the other.
OWAL chimney liners
Negative pressure
Element that allows to change the chimney duct from oval to round. There is a round muff on one side and an oval one on the other.
Our consultants are happy to help in selecting chimney system elements.