Any plumbers

[pointer2null]

Me and Mr P2N are buying a house! Anyhow, been having a poke about today and me being me, I checked our the central heating while he checked out the cupboards etc  :rollin

So, whilst poking about I spotted this - I know whats happening with most of it, but the bulbous thing (circled blue) got me. Anyone know what it is?

[chaz]

not seen one of those before? if it doesn't go anywhere is it to collect any crap in the system?

[snapper]

not a plumber so this is a wild guess is it a pressure bulb to prevent hammer action ?
pipes rattling and banging ?

[jon]

Is it an expansion tank for a sealed central heating system to do away with the header tank?

[slimwilly]

Is it an expansion tank for a sealed central heating system to do away with the header tank?

No !!!


Its a job to see if it is tee'd into the heating pipe or goes up behind it.
It is not big enough for an expansion vessel.Could be a seperator to give expansion and cold fill without short circulating.

[pointer2null]

here is a better link - should be a bit clearer















Looks like an expansion vessel, but it's way too small. also seems too big for a valve.

[nick crisp]

It's a thingamajig, er, a dooferyfirkin, oh for focs sake, a whatchamacallit - you know!!
:rollin

Better than more questions anyhoo.... :lol

[Fazerider]

Hard to judge from that angle and you could do with a decent camera... there are some available with more than a 100,000 pixels these days. :lol


If that pipe coming out of the top goes to the expansion tank in the loft (arching over the top with the end not submerged), then it may be a device to help separate air/gas from the liquid.

[locksmith]

What ever it is that cupboard is a fugging disgrace

[pointer2null]

I tend to agree. I could agree more or less if I actually knew what was what lol


Anyhow, the lot has to go. We want a combi fitted asap. I'm just trying to work out what is there first so I know what I'll need to do when we get the keys and move in. At the moment I have limited info - a couple of photo's, so it's a lot of guess work.

[evesdad]

It's an air separator and that pipework is shite :lol  similar here


http://www.toolstation.com/shop/Heating/...708/p75473


see if a magnet will stick to it, if it does its a pretty good indication that the system is shitted up. If you are fitting a combi it will be cut out anyway but, make sure you have the system well flushed and fit a system filter.