Been fitting new thermostats to my flat. In a couple of cases this means working round the old circular backboxes (some metal, some plastic but all mounted on conduit) with imperial screw fittings & in some cases said screw fittings in completely the wrong place.
Just dug out the wall round the next one i'm replacing in the bedroom, and having cut the old circular back box out, there's nothing there - just a hole in the wall to the next back box that needs replacing in the 2nd bedroom. Cabling runs from back box in room 1 to back box in room 2 as they're both on the same radial circuit.
My obvious problem is that there's nothing to mount a new steel back box to. If I can i'd like to use the existing void in the wall rather than cut out new ones.
I was wondering whether I could use that old fave expanding foam to fill the void and mount to that. Or hardwall for that matter.
any comments / suggestions ?
Matt
Just dug out the wall round the next one i'm replacing in the bedroom, and having cut the old circular back box out, there's nothing there - just a hole in the wall to the next back box that needs replacing in the 2nd bedroom. Cabling runs from back box in room 1 to back box in room 2 as they're both on the same radial circuit.
My obvious problem is that there's nothing to mount a new steel back box to. If I can i'd like to use the existing void in the wall rather than cut out new ones.
I was wondering whether I could use that old fave expanding foam to fill the void and mount to that. Or hardwall for that matter.
any comments / suggestions ?
Matt