pressurised heating system - PLEASE HELP

Biorra

Apologies in advance,
I have a Question for the central heating experts.
I am not that savvy so please bear with me.
We bought a house in 2013 and at the time a pressurised heating system had been recently installed. Unfortunately that person who once lived in the house is no long alive (RIP) – my question is what should the normal operating pressure for a sealed system when the heating has been running for a while?
From my caveman understanding, I know it should be at 1 bar when cold, and no more than 2.5 bar when its hot (3 bar is too high)
The heating has been running for a while and the heat does not appear to be building up in the house.
I had a plumber in in 2015 and he added a sealant as he suspected that there might be a leak of some description at the time and he did not want to put me to the expense of ripping out floor.
He somehow re-pressurised and it was fine – to be honest, I’m afraid that I might do damage if I go fiddling with it by myself.
Can someone please give advice on this matter?

Wearb

Your caveman understanding is roughly correct.
What is the pressure at when cold?
Gas, oil or solid fuel?
Maybe post a picture of the gauge somewhere and post a link here.
You may have to put a comma instead of the dot so that you are allowed to link.

TPM

What pressure is the gauge showing at the moment.

normally there will be a silver/chrome coloured flexi pipe in the hotpress.
it you can find this watch he gauge, turn on the valve untill the desired pressure is reached. then shut them off
NOTE if you can hear the water and the gauge doesnt rise after a while shut off the valve as the gauge may not be working and you risk over pressurising the system



the loop should only be connected to top up the system then disconnected again

Biorra

Wearb wrote: »

Your caveman understanding is roughly correct.
What is the pressure at when cold?
Gas, oil or solid fuel?
Maybe post a picture of the gauge somewhere and post a link here.
You may have to put a comma instead of the dot so that you are allowed to link.

the burner is oil - i've been told its a condenser by the fella who services it - i would know the difference to be honest.

i've attached two jpegs from inside in the hot press.

Biorra

TPM wrote: »

What pressure is the gauge showing at the moment.

normally there will be a silver/chrome coloured flexi pipe in the hotpress.
it you can find this watch he gauge, turn on the valve untill the desired pressure is reached. then shut them off
NOTE if you can hear the water and the gauge doesnt rise after a while shut off the valve as the gauge may not be working and you risk over pressurising the system



the loop should only be connected to top up the system then disconnected again

ok - sorry. but where should i be able to see this. i took a look in hotpress and nothing like that appearedto be tere. would that be located in the oil burner??

Leaksireland

Biorra wrote: »

the burner is oil - i've been told its a condenser by the fella who services it - i would know the difference to be honest.

i've attached two jpegs from inside in the hot press.

That's an automatic fill valve. Keeps the system pressurised to a pre selected pressure. It's usually not a good sign to see these installed as they are used to replace water lost through a leak so as the boiler will keep going.

Biorra

Ok, what exactly does that mean or what can be done to remedy it?

Wearb

Set your pressure to about 1 bar (maybe a little higher. I don't know the reason for those writings) when cold. Move the red leaver valve perpendicular to the pipe it's on (That closes it). The gauge should remain at the c1 bar until heating is on. Keep an eye on what it gets to when hot.

Is it a two story or more house? Any basement? What level is that gauge on?

Biorra

Hi Wearb,
Its a 4 bed bungalow

Wearb

Biorra wrote: »

Hi Wearb,
Its a 4 bed bungalow

I don't see any reason for 1.5 bar then.
Follow the instructions above and post the results you get.