Lockshield valve

[scottygio]

I've recently stripped out the radiator in my bathroom and replaced it with a towel radiator but the towel radiator is very hot. I know you are supposed to balance a radiator but i don't have the clip on thermometers to do this. Can i just turn the lockshield valve in a clockwise direction( thereby closing the valve and resticting the flow), will this lower the temperature of the towel radiator?

thanks

scott

 

[corgiman]

what are the other rads doing?

are they hot or cold

if hot then you are not going to achieve much in restricting the flow i would have thought.

also rads do get veryhot unless they are the low temp ones designed for schools hospitals etc...

 

[croydoncorgi]

Since it's summer, the probability is that the towel rail is plumbed as a bypass (heats whenever boiler / pump run) or on the same loop as the HW cylinder.

If it IS used as a bypass, it would be a Very Bad Idea to put a thermostatic rad valve on it without making other bypass arrangements. Otherwise, fit a TRV.

 

[scottygio]

The radiator that was in the bathroom had a trv fitted. All i did was remove this radiator and fit a nice shiny chrome one in its place. Sorry i forgot to mention i have a combination boiler so my system is sealed. What do you mean by bypass and because its summer?


thanks for your inout

regards

scott

 

[croydoncorgi]

Depending on which boiler you have, it may need a bypass (path from Flow to Return that is always open). Check in the boiler installation instructions.

Because you never said 'Combi', I assumed the HTR was on all the time, even with the CH off. If it's on a combi, it must be connected along with the other rads.

If the boiler needs a bypass and there is one, there's nothing to stop you putting a TRV on the HTR. Closing the lockshield valve will reduce the temperature of the HTR- but possibly the temperature setting on the boiler might be too high anyway. Especially with a combi, running your boiler at max wastes energy.

 

[scottygio]

About a month ago when i was rewiring the house i found a valve that was connected between the flow and return of the 22mm heating pipes. I was curious to know what this was so you have answered that question as well, a bypass valve. What is the function of this valve?
As i said the htr is very hot, so i will close the lockshield valve and see what results i get from this.
The boiler is indeed set at maximum, i could turn it down a bit.
thanks very much for your help and advice, much appreciated