URGENT Hanging a Radiator on plasterboard/cavity wall

[Hilld715]

What’s the best fixings to use for a double Radiator in the living room that needs to be fixed to a plasterboard/cavity wall?

 

[Last Plumber]

Any of the above types are OK.
I prefer the second one to be honest but everyone has their own preferences. I do tend to use three in each bracket as a minimum.

 

[ShaunCorbs]

Is there brick / block behind ?

 

[Hilld715]

Is there brick / block behind ?

No it’s a cavity

 

[ShaunCorbs]

No it’s a cavity

How big is the radiator?