Think of it as the metal wall of a steampunk submarine. Not to do a sub theme but as a way to start visualizing. Install pipes that appear to go through the wall - you could use PVC pipe and cut the end to match the shape of the wall so it looks like it is going through. "Pressure gauges" can be attached. One could have a clear section half filled with green glowing "liquid" made of resin with a small light placed back in the opaque pipe so it shines through the resin. It doesn't have to do anything but it should look like it does.
A relatively small humidifier hidden at the bottom will cause "steam" to vent out of wherever you put a vent. (well, not too far away)
there are a lot of steampunk kinetic sculptures that would look great against that background too.
Use copper piping to act as supports for shelving made of reclaimed wood.
If you have a coffee/espresso machine (I assumed that the bar was a business and not a bar in your house) then put it next to the wall with a variety of pipes that look like part of it. (see humidifier above)
This is some very good advice, thank you!
It's a bar/café (business) indeed.
Behind the metal sheets will be wood, that's the fake wall.
Perhaps I can upload some pictures when its all up against the wall?
If you or someone here could draw a draft that would be great haha. The hardest part is to image it and create it, so it looks good.
The bar is in Belgium btw.
