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Quick question about combi boilers.

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I have had to shut my water off whilst doing a repair on a pipe. What I would like to know is do I have to shut the boiler off or can I leave it on for the heating. Thanks. Read More
cami Avatar
7y, 4m agoPosted 7 years, 4 months ago
I have had to shut my water off whilst doing a repair on a pipe. What I would like to know is do I have to shut the boiler off or can I leave it on for the heating.
Thanks.
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cami Avatar
7y, 4m agoPosted 7 years, 4 months ago
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#1
My gas central heating is run by water.
#2
if its one of the instant ones then it wont work with no water pressure.
#3
I take it the pipe you are repairing has nothing to do with the heating, the heating is a closed system so you can leave it on
#4
Doing a repair on the central heating or water pipe?
#5
If you are fixing a pipe that you can turn the water off ether side of it, thus you loosing very little water then yes you can leave everything else on
#6
It is wise too although the heating loop is a closed system and should not effect it if the water is switched off
#7
mikebike
It is wise too although the heating loop is a closed system and should not effect it if the water is switched off


Why is it wise to leave it on, as you have pointed out it is a closed/sealed system?
#8
thesaint;7258443
Why is it wise to leave it on, as you have pointed out it is a closed/sealed system?

I think he's saying it's wise to turn it off. I would too as there may be a drop in pressure as you work on the repair.
#9
thesaint
Why is it wise to leave it on, as you have pointed out it is a closed/sealed system?


Can you tell its been a long day:oops:
#10
kingy58
I think he's saying it's wise to turn it off. I would too as there may be a drop in pressure as you work on the repair.


That's what i was trying to say just very tired and not got the brain in gear:oops:
#11
It all depends where the pipe is you are fixing
#12
Why would there be a drop in pressure if he is not working on the central heating pipes?
#13
Thank you all for your replies.
The pipes I'm working on are for the bath so nothing to do with the boiler. I have had it turned off but I'm getting cold now that's why I wanted to know if I could put it on.
#14
Even if he it a heating pipe to a rad. once turned off ether side of the rad. there would not be a pressure drop, But once reopened after repair the pressure will drop but all you need to do is open the loop pipe/valves and bring it back up, while bleeding the rad.
#15
Do you have shut off valve to the bath, if so leave everything on

Heating you could have left on away its a separate circuit,
but the out going side for hot water at the(for the taps) boiler turn it off if you have an open end at the bath (i.e. not shut off)
#16
The pipe had nothing to do with heating so you can turn the boiler back on and you should get your hot water back, assumion the pipe is now fixed
#17
kingy58
I think he's saying it's wise to turn it off. I would too as there may be a drop in pressure as you work on the repair.


Not this^^^

PrideandPassion
Why would there be a drop in pressure if he is not working on the central heating pipes?


This^^^

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