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Small hot room . Radiator advice
I have a very small bedroom 8'x 10' 8 foot ceiling with 1 window it currently has a old rad that the edr is 20 . The room heats up so quickly and gets so hot that i put the smallest vent on it, it is a pinhole. So now each cycle ,maybe 2 sections heat up only. it helped with keeping the room cool but i seem to be getting a lot more water hammering as of late . it was never really noisy at all . I used to close the valve completely and the room did stay warm but also got some water hammering .
1 . is it worth getting a new much smaller rad with a bigger vent ?
2 , is the smaller slower vent letting condensate build up, it was never a problem with a bigger vent ?