ᐅ Chimney pipe passing through the exterior wall – looking for information

Good morning everyone,

We plan to install a stainless steel chimney pipe on the exterior ourselves. For this, we need to make a core drill hole through the house. Can anyone advise on the approximate height at which it should be installed and how far away electrical cables and empty conduits must be? What regulations apply regarding ventilation? We have a KfW70 house without ventilation.

We haven’t chosen a fireplace yet, but we are considering a (masonry?) studio fireplace with glass on three sides and a ledge for sitting.

Best regards,
Tobi

It’s best to consult your local district chimney sweep master, as they will also be responsible for the final inspection. If they are involved from the very beginning, nothing can go wrong. They can also assist you with ventilation matters.

OK, I spoke with him and clarified a few things.
We have a kitchen island where cooking also takes place. Above it, we want to install a slim extractor hood in the suspended ceiling, with an exhaust motor mounted outside on the exterior wall. However, he now says that we need to connect this with a window contact to prevent air being drawn from the chimney.
That makes sense and is logical. But he also mentioned that recirculation hoods with charcoal filters work almost as well and are much more energy-efficient, since external motors pull a lot of air out of the house.
What do you think? I was actually not planning to have recirculation...

Hello,

I completely agree with your local chimney sweep master.

From an energy perspective, exhaust hoods (in winter) are not very efficient.

Take a look at recirculation hoods from "Berbel" on Google. They are not exactly cheap, but definitely as good as an exhaust hood and, due to their design, have quite low ongoing costs.

Regards,

Dirk