What are radiator covers for actually?

[Andy297]

I've painted a radiator and I think it looks good without the top & side covers - is there a practical reason to use the covers or are they just for appearance and keeping outdust? Thank you

 

[DiyNutJob]

If you are unable to paint the wall behind it, covers and cabinets will obscure that.

 

[Deleted member 174758]

They are there to hide the radiators from view (so primarily aesthetics), but they do restrict radiator output.

 

[mcprinter]

I am guessing Andy means the end plates and top grill that are on type 22

Stelrad say the end plates are to contain heat
I guess the top grill is to stop large debris. Sock, etc