Looking for an affordable chimney system

Hello everyone,

I am looking for a chimney system to which I can connect a chimney kit/fireplace stove.
Requirements:
- chimney with the smallest possible dimensions
- nominal diameter 180 mm
- as inexpensive as possible
- integrated fresh air supply not absolutely necessary but nice-to-have

Which certificates must such a system have?
Which chimney kit/fireplace stove will be connected is not yet fully decided. The current favorite is the Varia 2R-55h from Spartherm, if that plays a role.

Thanks to you.

Good morning,

I wanted to bring up the topic again. During my research, I came across a chimney system from the manufacturer Niko. The company is based in Berlin and is significantly more affordable than established manufacturers like Schiedel etc. Has anyone had experience with Niko?

Could you take a look at Plewa - it is installed with us, but I can't tell you exactly why

Could you take a look at Plewa - it is installed here with us, but I can't tell you exactly why

with us too (GU-Bau)! Therefore, I also suspect that this is a "cheap" system.

Plewa was also installed in our case. I cannot say whether it is something cheap, but the chimney sweep said during the stove planning that it is a very good system. Unfortunately, I do not know the exact designation.

The company Plewa has probably recently gone bankrupt - just for your information.