Radiator Thermostat Help Please

keystone

DVardysShadow wrote: »

Or far too little and freezing

Indeed.

Cheers

cyclonebri1

awesome2 wrote: »

Good Evening

Going back to my original post (sorry to be so thick) I have set my trvs to 3 and I dont seem to feel them cookling down or heating up at intervals at all. Should they go cold when the rad reaches the number on the trv or just cool slightly. Is this because the rads are not reaching the temp set on the trv? If so why not I dont thingk the rads are too small for the rooms. Does it matter which end the trv is put on? I thought puting trv's on would make them more efficent rather than befrore when they jus blasted the heat out but when I touch them they seem constantly hot excpert when the thermostat shuts the boiler down. ARRRG Help Feel like I am going mad!!!

Maybe you haven't grasped the principal of operation quite?

The trv is gauging the temp in the room, the air temp not the water temp in the radiator. Only when the whole room or more correctly the area near the trv has reached the desired temp, does the trv start to close down the water inlet.

The scale on the trv is simply grade of fully open to totally closed and doesn't really equate directly to temperature.

The trv is usually fitted at the end of the rad nearest the centre of the room but read below.

Just a point, can't recall if it was mentioned, are the trvs installed on the flow pipes and not on the return?, ie, the water should be hottest at the pipe into the trv;)

awesome2_2

DVardysShadow wrote: »

You try to leave them alone, you adjust them in small steps and although when you open them the rad can heat up quickly it can take quite a few minutes to cool down.

So when they are working properly, they just constrict the hot water flow a bit until a stable balance is reached where the rads are quite warm but not fully on. You will not tell this by feeling the top of the radiator, you will see it more if you feel the outlet pipe of the radiator. If the radiator size is well matched to the room and the TRV is set to a sensible temperature you will find the outlet pipe of the rad will be much cooler than the inlet - indicating that the radiator flow is quite low. Once again, when everything has reached temperature, the radiator will not and should not go cold.

Hi Thanks Could I just ask what is balancing? and do I need the temp on my boiler on max this adjusts the heat of the water going through the rads I have set the trv's to 3 and I will try not to fiddle dont know what temp 3 is though.

:beer:

cyclonebri1

awesome2 wrote: »

Hi Thanks Could I just ask what is balancing? and do I need the temp on my boiler on max this adjusts the heat of the water going through the rads I have set the trv's to 3 and I will try not to fiddle dont know what temp 3 is though.

:beer:

Confirmed as per my previous thread. No3 does not correspond to anything other than probably 1/2 open.


balancing?

Start with all thermostat valves and all lockshield wide open. Slowly throttle back the hotest radiator by the lockshield valve. When another appears hottest close that one back as well. Do that untill all the rads are nice and hot. then set the trv to controls the room temp

Sorry, but your posts indicate you need a little help