S
swidders
After that see if your towel rail is free from air.
Since the op is bleeding daily, your suggestion is irrelevant. Mine, however, highlights an separate issue that needs to be checked.
air getting into heating system?
- Thread starter chivers
- Start date
Since the op is bleeding daily, your suggestion is irrelevant. Mine, however, highlights an separate issue that needs to be checked.
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B
Bambergaspipe
Since the op is bleeding daily, your suggestion is irrelevant. Mine, however, highlights an separate issue that needs to be checked.
My reply to your ridiculous answer was sarcasm, you`re that stupid that not only can you not diagnose a fault but you cannot see when someone is ripping the p*iss out of you....Work that one out Sherlock..
S
swidders
Since the op is bleeding daily, your suggestion is irrelevant. Mine, however, highlights an separate issue that needs to be checked.
My reply to your ridiculous answer was sarcasm, you`re that stupid that not only can you not diagnose a fault but you cannot see when someone is ripping the p*iss out of you....Work that one out Sherlock..
apologies then
Oh yes it can.
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the sysyem is sealed and so is under positive pressure. this is not an open vented system and not subject to positive and negative pressure. As i have said air can not be pulled in via the pump or rad valve or anywhere else. in use the system pressure can be upto 2 bar, and thats the whole system so how could air be pulled in? unless the pressure in the house was 2bar or over ! if that were so your ear drums would have popped, and i take it that has not happened.
this is typical of trapped air in the sysyem. removing it can be hard work but it can be done. again try running each rad on its own, and work your way around the system repeating this. all the air will rise to the top of the system. its not rocket science after all. just a heating system. if the pressure is correct when cold, that is 1bar, then it can only be an air lock.
there is no need to get technical, no need to fit auto air vents or pumps. try the simple things first .
this is typical of trapped air in the sysyem. removing it can be hard work but it can be done. again try running each rad on its own, and work your way around the system repeating this. all the air will rise to the top of the system. its not rocket science after all. just a heating system. if the pressure is correct when cold, that is 1bar, then it can only be an air lock.
there is no need to get technical, no need to fit auto air vents or pumps. try the simple things first .
Thanks guys. I'll try the running one-rad-at-a-time then bleeding suggestion first. Nothing to lose!
I tried tightening the rad valve gland nuts on the radiators I changed, but that hasn't fixed the problem. I guess I try this on all the other rads too (again, nothing to lose...)
I'd be a bit worried about invalidating the nice 5-year guarantee on the boiler if I changed the pump myself.... I wonder what I would have to do to get it changed under the guarantee.
landyandy: yes, the towel rail's got the flat-sectioned horizontal 'rungs'.
The top one is cooler than the rest. It heats up after bleeding, but only for an hour or so.
Thanks again all!
I tried tightening the rad valve gland nuts on the radiators I changed, but that hasn't fixed the problem. I guess I try this on all the other rads too (again, nothing to lose...)
I'd be a bit worried about invalidating the nice 5-year guarantee on the boiler if I changed the pump myself.... I wonder what I would have to do to get it changed under the guarantee.
landyandy: yes, the towel rail's got the flat-sectioned horizontal 'rungs'.
The top one is cooler than the rest. It heats up after bleeding, but only for an hour or so.
Thanks again all!
B
Bambergaspipe
Oh, no it can`t , that`s the whole point of a sealed system.... How can it... Muppett.
when you bleed the radiator try lighting it with a match, if it lights it's hydrogen and that shows there is a reaction in your system causing it. to solve you the problem it will need cleansing and inhibiting, either that or you have a radiator that insists on having a reaction and it needs replacing.
ok my second pennys worth.
i have rented properties to live in whilst working in uk and europe.
the ladder type towel rails can be slow to clear all air.
in europe they attach flow to bottom and return to top opposite end,this cleares out air and any gases that gather in it.
in uk (sorry i am a brit and do not accept we are in europe) we pipe into both bottom connections,at least it works as an air trap.usually these towel rails are much higher than all other rads so air finds the highest point.
i do remember seeing very old towel rails in this country usually they had round corners,just 1 or 2 cross pipes and a much larger diameter.
a towel rail is to heat towels not the room well thats my opinion.rant.
some towel rails are copys of decent manufactures but they take short cuts so the internal connections/welds are poor.
maybe the towel rail can be turned off to see if air/gas is dumped into the radiators.
ok penny now spent.
i have rented properties to live in whilst working in uk and europe.
the ladder type towel rails can be slow to clear all air.
in europe they attach flow to bottom and return to top opposite end,this cleares out air and any gases that gather in it.
in uk (sorry i am a brit and do not accept we are in europe) we pipe into both bottom connections,at least it works as an air trap.usually these towel rails are much higher than all other rads so air finds the highest point.
i do remember seeing very old towel rails in this country usually they had round corners,just 1 or 2 cross pipes and a much larger diameter.
a towel rail is to heat towels not the room well thats my opinion.rant.
some towel rails are copys of decent manufactures but they take short cuts so the internal connections/welds are poor.
maybe the towel rail can be turned off to see if air/gas is dumped into the radiators.
ok penny now spent.
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