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Thanks John

After installing an extra radiator using barrier pipe for the first time, I noticed that the pipes when hot expand, (I understand why they have) I have not put any clips in yet, but when I do is the expansion likely to pop one of the fittings, with pipe being secured. Regards Mick

I realise now I need to drain the system to check pressure correctly, but now I know the running pressures are ok I think I will leave well alone,and only fit the external pv if nessesary.

thanx for the quick reply, I would like to fit an external pressure vessal for easiar maintanace,do I just pipe it in to the return, and do I have to remove the old pv system or just blank it off.

I recentley had problems with high pressure on the central heating system, the air pressure in the expantion vessal was just above 1 bar which I thought was ok but this was with water in the system, so I replaced the prv valve, plus a none return valve on the flow service valve, cleaned out the...

Thanks for the quick reply I will give this a go and let you no the results.

No I think I would need a detaled version , the threads I have looked at so far seem a bit daugnting.

Hi My system is vokera 24 combi using about 10kw output at the moment, I recently installed 2kw rad in loft, and seems to take long time to heat up, just as it`s starting to get warm the hall stat set at 20c swithes off, my question is why doesn`t the rad heat up at the same rate as the...

Hi there haven`t checked the antifreeze yet (take it you mean the level) but the car heats up fine, thought there might be a sesor somewhere, I could check

Hi I have a Renault Megane 1.6 petrol 02 plate, when I start up on a cold morning the engine revs go to 3000 the colder the weather the higher the revs, then after a while eventually settle to normel Idle around 500 after that the car works fine, any Ideas please. Regards Mick

Many thanks Mick

I have a Volkera 24 combi boiler and I am constantly having low pressure problams. Via the forum I have estblished that the fault probably lies at the pressure vessel, checking the pv as in the FAQs is a bit vague,would it be simpler to isolate the flow and retrurn valves at the boiler and...