Attaching a radiator to a cavity wall

[DLaing]

I'm about to attach a heavy radiator (15 - 20 Kgs empy) to a cavity wall. I'm planning to use some very heavy duty wall anchors (M6 x 55). Any ideas if these are up to the job and whether the plasterboard can take such a load?

 

[oilman]

I wouldn't trust the weight on plasterboard, you need to transfer the weight to the studs. As for fixings, 30kg is not much, just keep in ming you could hang yourself using a 6BA bolt as an anchor.

 

[vxxbcks]

you should be able to mount it with those heavy duty metal fixings that pull out on the inside - they are used to hang kitchen cupboards - but I wouldn't personally trust it. Much better to find the studs, or even get a metal cross beam fabricated if you know someone in metal working.

 

[masona]

I suppose you could use 3/4" plywood smaller than the radiator size, screw it to the stud then use toggle fixing for the radiator brackets