I need a bit of advise on plumbing. Basically my radiator valve head(DRAYTON TRV4) is completely broken. The heater is on full blast because of no temperature control. I know I can buy a new one but as we are entering into summer, I don't think I need heating until Sept this year.
Is there any way I can turn that radiator off without switching off whole central heating system (Weirdly my landlord is not willing to turn off central heating). I just wanna isolate it. Since the head(Knorb) has completely came off, I can see Pressure pin is sticking out. I tried different method to put the pin down to block the hot water going in there but no success so far.
It's getting really hot and I am sweating as I type this message. Help needed urgently.