ᐅ Wall penetration for stove – dimensions

Hello everyone,

What should the internal diameter of the wall sleeve be for a stove if the flue gas pipe diameter is 150 mm (6 inches)?
Should it also be 150 mm (6 inches), or do you calculate it larger?

This is currently just a planning question for a sketch.

Thanks.

That information is usually included with the stove specifications. Secondly, the material of the wall through which the pipe passes also plays a role.

I checked, and there is no information about that.
Only that the connection on the stove is 150mm (6 inches).

As I said, it’s just about a drawing.