Radiators

[ConfidentChappy]

Probably a stupid question but if I don't ask i'll never learn. Why are there two valves on each of my radiators?

I assume the left one is to turn off and on the hot water supply to the radiator but what does the other one do?

Thanks in advance.

 

[Terrywookfit]

It turns off the water!

A fiendishly cunning idea in case you want to remove the radiator for any reason

 

[ConfidentChappy]

lol as simple as that.

Thanks.

 

[D_Hailsham]

Firstly, it does not matter which side a valve is; radiators are bidirectional.

The valve you can turn is there so you can adjust the heat output of the radiator. The other valve is there so the heating system can be "balanced", that is making sure each radiator gets the correct share of the water flowing round the system. If you did not do this the radiators nearest the pump would get too high a flow, so depriving those further along the line.

 

[Terrywookfit]

Firstly, it does not matter which side a valve is; radiators are bidirectional.

The valve you can turn is there so you can adjust the heat output of the radiator. The other valve is there so the heating system can be "balanced", that is making sure each radiator gets the correct share of the water flowing round the system. If you did not do this the radiators nearest the pump would get too high a flow, so depriving those further along the line.

What if there is no TRV fitted

 

[ConfidentChappy]

Thanks.

 

[D_Hailsham]

Firstly, it does not matter which side a valve is; radiators are bidirectional.

The valve you can turn is there so you can adjust the heat output of the radiator. The other valve is there so the heating system can be "balanced", that is making sure each radiator gets the correct share of the water flowing round the system. If you did not do this the radiators nearest the pump would get too high a flow, so depriving those further along the line.

What if there is no TRV fitted

Don't understand: what are you referring to?

 

[John506]

Firstly, it does not matter which side a valve is; radiators are bidirectional.

The valve you can turn is there so you can adjust the heat output of the radiator. The other valve is there so the heating system can be "balanced", that is making sure each radiator gets the correct share of the water flowing round the system. If you did not do this the radiators nearest the pump would get too high a flow, so depriving those further along the line.

What if there is no TRV fitted

Then you have 2 lockshields, and don't have the thermostatic function of the TRV, only a manual valve to which you can slow or speed up the flow of water to the radiator

 

[Terrywookfit]

How can the flow through the rad be any more than the flow through the balancing valve