upvote
As long as you can easily slide it out of the way and it isn't fixed to the wall, it wouldn't be a problem for anyone who needs to service it. Therefore, it would not be against regulations, because all regulations in Germany are logical
reply
Good to know! It slides in/out like a puzzle, so should be fine then.
reply
You need a vent there as well so gas can't build up.
reply
I doubt a billy book case is anywhere near air tight.
reply
It has nothing to do with air tightness.

If it leaks slightly it could keep the gas/air at an explosive ratio within the box.

Best to just have it vent out into the room. then it's noticeable.

reply
I really hope not! But it does look much better this way, it was an eyesore. And the regular heizung guys didnt complain when they saw it like this, so im assuming all is well
reply
There is a requirement for having a vents if you are boxing in that device.

One high and one low one, this is so the gas does not build up in case of a leak.

Would highly suggest you get that sorted, your insurance might be void in case you do get a fire.

reply