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.
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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.
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Our consultants are happy to help in selecting chimney system elements.