OBL W1 support
When used with the OBL clip, it allows moving away from the wall by 70 mm. Dimension for the outer diameter of the chimney -D.
KF insulated chimneys
Negative pressure
When used with the OBL clip, it allows moving away from the wall by 70 mm. Dimension for the outer diameter of the chimney -D.
Our consultants are happy to help in selecting chimney system elements.