Removing TRV head

[sanjayp]

A while back I had all the radiators replaced in my house and had TRVs installed on all of them. Then subsequently when I was having the boiler replaced the plumber mentioned that I should not have TRVs on _all_ the radiators (especially in the same room as the thermostat).

Anyway, I am again having some more work on radiators next week and was wandering if I should ask the plumber to replace the TRV's on a couple of radiators with lockshield valves?

Also, if I remove the head of the TRV (so that the pin is exposed in the fully open position) is that the exactly same as having a lockshield valve? or is the flow of water still restricted a little compared to the lockshield?

thanks for any advice
sanjay

 

[chrishutt]

All you need to do is set the TRV to close at a higher temperature than the setting on the room stat. So if your room stat is set to 22 C and your TRV set to Max ((no. 5 - 27 C?) the TRV will always be open and the room stat will control temperature. Some TRVs can be locked to a particular setting if your concerned that the TRV might be reset to lower temp by someone else.