Quick question regarding re-pressurizing the boiler
- Thread starter ralv585
- Start date
I take it you're just talking about the central heating circuit?
I don't turn mine off to re-pressurise the CHC. I don't do it when the boiler is actually running either, but I don't think it matters tbh.
Most boilers have a dial or readout that tells you the pressure - also I'd not get too bothered by over-pressurising your boilers central heating water system... unless it's some kind of antique death trap, it will have a pressure relief valve that vents excess pressure to the outside should you over fill the system (when it gets hot etc) - but so long as you keep an eye on the pressure gauge as you fill, you should be ok, fill it a bit at a time if you're not sure. The dial on mine 'bounces' slightly when I fill it. Ie. when you turn the fill tap off, the pressure drops a bit.
If it has lost pressure, I'd be looking for a leak somewhere.
It might be worthwhile bleeding your radiators when you pressurise the system too - fill, bleed, fill, bleed until there's no more air in the system. The only place I usually have to bleed air from is the upstairs radiators after I've run the boiler for a bit, then let everything settle down. Might take 2 or 3 days to do this, checking for air once or twice a day, just to make sure.
Unless you're messing about with the gas supply, you cannot really break your boiler just filling it up with water.
I don't turn mine off to re-pressurise the CHC. I don't do it when the boiler is actually running either, but I don't think it matters tbh.
Most boilers have a dial or readout that tells you the pressure - also I'd not get too bothered by over-pressurising your boilers central heating water system... unless it's some kind of antique death trap, it will have a pressure relief valve that vents excess pressure to the outside should you over fill the system (when it gets hot etc) - but so long as you keep an eye on the pressure gauge as you fill, you should be ok, fill it a bit at a time if you're not sure. The dial on mine 'bounces' slightly when I fill it. Ie. when you turn the fill tap off, the pressure drops a bit.
If it has lost pressure, I'd be looking for a leak somewhere.
It might be worthwhile bleeding your radiators when you pressurise the system too - fill, bleed, fill, bleed until there's no more air in the system. The only place I usually have to bleed air from is the upstairs radiators after I've run the boiler for a bit, then let everything settle down. Might take 2 or 3 days to do this, checking for air once or twice a day, just to make sure.
Unless you're messing about with the gas supply, you cannot really break your boiler just filling it up with water.
most boilers dont like 3 bar of pressure and ive seen plent of boilers break down because they have been run at 3bar, so yes they can break down if the pressure is too high.., they're supposed to run at 1 to 1.5 bar, not 3bar, it really isnt a good idea to let it run high, ignore jumpy
also if the pressure on your boiler has dropped to 0.5bar over, say 4month, i would say to ignore trying to find a leak because you wont find one, unless its dropped that much in a day or 2..
as for bleeding radiators, if they all get hot, no cold spots or cold on the top, ignore trying to bleed them..
also if the pressure on your boiler has dropped to 0.5bar over, say 4month, i would say to ignore trying to find a leak because you wont find one, unless its dropped that much in a day or 2..
as for bleeding radiators, if they all get hot, no cold spots or cold on the top, ignore trying to bleed them..
Now, that's not really what I said, was it, hmm?
I don't recall telling him to fill it to 3 bar either, as he obviously has RTFM and knows it's supposed to be at 1-1.5.
For the record, my boiler is supposed to run from 1.5 - 2.5 bar.
All I said was not to worry too much, and take it steady when refilling, which is perfectly good advice. Are you telling me it's not?
Besides, if he over pressurises the radiators a little, he can always bleed some of the pressure off, in the same way of removing the air, no?
ignore Mickie, he's just being picky. (not serious)
Its just advice fella, you know? But you can do whatever the **** you wanna do.