ᐅ Air intake for wood stove, hearth pad, flue pipe

Hello everyone,

When we built the house, we had an air supply duct for a fireplace installed in the floor slab. The pipe outlet is next to the chimney, see the picture in the living room (not on an exterior wall). On the piping plan, see the picture, there is a pipe drawn going outside. Outside, there is the pipe outlet with a cap like that shown in the picture.

Could this be the air supply pipe?

Best regards

Addition:

We are a bit worried that we might never be able to install a stove because we may have missed the fresh air supply.

In the floor plan, I don’t see any fresh air ducts, only wastewater pipes.
I would remove both caps or plugs, then smell to check if wastewater pipes are connected outside.
After that, call out inside while a second person listens at the other end.

Thank you for your feedback.
There is already a sewage smell.

We are just wondering what purpose a wastewater pipe could have in the middle of the living room next to the chimney...
Unfortunately, it can no longer be reconstructed afterward how this could have happened, because it was basically always planned that a wood stove would be installed there.

If there are wastewater pipes in the living room, remove the strange plug and put a caps on it.

Outside, also put a caps on it; it is needed from time to time (emptying the cistern, flushing the pipe and cleaning in case of blockages, as a drain for a motorhome, etc.).

LeaLeoo schrieb:

We’re just wondering what the purpose of a wastewater pipe would be in the middle of the living room next to the chimney…

Maybe it’s a condensate drain?