Please can anyone answer 3 questions about central heating?

[dancinplumba]

Thanks again. That's the message I'm getting on this forum. If I was handy, I'd remove the TRVs (I know it's not that difficult to do, but I couldn't do it). I'll ask an engineer. Interesting that you say the noise isn't likely to be caused by the high temperature of the water. Appears I can discount that as a cause and go back to concentrating on air in the system and/or the TRVs.

take the head off the TRV's !!!

 

[Riley]

There have been several good ideas over three threads which have not been tried

 

[Harvest Fields]

Thank you. It's a combi system. I don't think the room stat is sending a signal. The room stat allows the temperature to drop by half a degree (it uses increments of half a degree) before it tells the boiler to come back on. Amazingly, in the time it takes the room stat to register that the temp has dropped by only half a degree, the house is freezing (the rads are stone cold). This can take over an hour (without heating so no wonder the house is cold). I wonder if the room stat just isn't registering the temperature drop quickly enough (it's just taking its time to drop) or if it should send the signal to the boiler much sooner. As you say, it doesn't seem right.

Where is the room thermostat stat located? And how far away is it from the nearest radiator?

 

[Harvest Fields]

Thanks again. That's the message I'm getting on this forum. If I was handy, I'd remove the TRVs (I know it's not that difficult to do, but I couldn't do it). I'll ask an engineer. Interesting that you say the noise isn't likely to be caused by the high temperature of the water. Appears I can discount that as a cause and go back to concentrating on air in the system and/or the TRVs.

Send a picture of the trvs and we will tell you how to unscrew the head from it on a temp
Basis.

 

[Martell]

Where is the room thermostat stat located? And how far away is it from the nearest radiator?

Thank you. The room stat is about 10 feet away from the nearest rad and about 7 feet off the floor. It's set 5 degrees higher than the actual room temperature.

 

[Riley]

Why won’t you remove the trv heads or move the stat

 

[Martell]

Send a picture of the trvs and we will tell you how to unscrew the head from it on a temp
Basis.

Thank you. Attached photo! I'm a female pensioner! If you tell me what to do, I'll be grateful but I might need help!

 

[Harvest Fields]

The bit that I have circled in the picture needs to be undone and then the head will come off the trv. They may only be finger tight but if you struggle to grip things you may needs some adjustable grips.

 

[Martell]

Why won’t you remove the trv heads or move the stat

I asked the engineer if the TRVs were causing the problem and he said they were ok. I'm going to try to remove the heads (I'm a female pensioner which is why I'm trying not to meddle too much myself but would rather get an engineer in to sort out the problem!). I have difficulty unscrewing parts that are tight. I tried to room stat in the hall and I didn't notice a difference, but I'll try relocating it again.

 

[Riley]

Sorry I wasn’t having a go but it had been said several times