Inprint of furnace in the ceiling.

Okey, found a bug that allows me to see my own furnace’s on my 2nd floor through my 1st floor ceiling. Not sure if this is just on my base.

I can say this, upgraded my 1st floor ceiling with the furnace on it to metal/8000 HP on the feb 19 update. Now I can see my furnace’s from the 1st floor, do to imprint/base of the funace cutting down or inside it.

http://fragsgaming.com/bilder/2015-02-20_00001.jpg

can you interact with them from that side?

no

No, that is not possible.