trv on all radiators?

[jorob2614]

After having my central heating fitted the plumber said the first radiator from the boiler which happens to be the bathroom should not have a trv fitted like the other radiators and the valve should be left fully open at all times. Does anyone know if this is correct? It seems a shame that the room used the least is the one that cannot be temperature controlled. Thank you.

 

[kevplumb]

depending on the boiler its normal practice

 

[NatB]

Thought it was usually the last radiator in the run not the first as you normally have the lockshield fully open. I swapped out the TRV's in another room which I always want warm when the heating is on.

 

[kevplumb]

usually the bathroom as the little lady will cover it with towels

so you don't cook

 

[xr4x4]

normally one rad must be left open, reason why is if all trvs where to shut, there must be a path for the water to flow.

 

[holty]

henced why an automatic bypass should be used.then you can have a trv on the rad.

 

[seco services]

normally one rad must be left open, reason why is if all trvs where to shut, there must be a path for the water to flow.

so whats wrong with the bypass

 

[ChrisJ78]

usually the bathroom as the little lady will cover it with towels

so you don't cook

Very typical of my Wife

I had to ask the plumber to remove the TRV from our bathroom rad as I was having a new rad in a small bedroom and hadn't bought a TRV (d'oh). However, I really don't know which is the first radiator from the boiler

Is there any way to tell?

 

[xr4x4]

normally one rad must be left open, reason why is if all trvs where to shut, there must be a path for the water to flow.

so whats wrong with the bypass

no idea.

 

[kevplumb]

normally one rad must be left open, reason why is if all trvs where to shut, there must be a path for the water to flow.

so whats wrong with the bypass

err what bypass

 

[jorob2614]

normally one rad must be left open, reason why is if all trvs where to shut, there must be a path for the water to flow.

Thanks for the reply. So you're saying I could have a trv put on the bathroom but leave the living room valve open always?

 

[seco services]

err what bypass

fit a bypass.

 

[kevplumb]

normally one rad must be left open, reason why is if all trvs where to shut, there must be a path for the water to flow.

Thanks for the reply. So you're saying I could have a trv put on the bathroom but leave the living room valve open always?

yes

 

[holty]

even better take the one off nearest the stat.

 

[NatB]

normally one rad must be left open, reason why is if all trvs where to shut, there must be a path for the water to flow.

so whats wrong with the bypass

no idea.

Well in my case the bypass would actually be the PRV as the pressure rises, not the best solution.