Hello,
We are going to build up two new chimney stacks with solid bricks. (Not for flue gases).
One will also become a load-bearing interior wall up to 2.5m.
As I understand it, it should be fine with Mortar B (M2.5), or does it need to be A (M10)?
I haven't really found ready-made A, so it seems you have to mix in gravel yourself.
So unless you advise against it, we plan to go with Finja’s Mortar B.
Best regards
