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Re: Heating Pressure Loss
[Re: Jim_Clennell]
#1627959
15/12/2018 13:33
15/12/2018 13:33
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Joined: Mar 2006
Posts: 8,852 Cambridge & Cotswolds
MeanRedSpider
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Posts: 8,852
Cambridge & Cotswolds
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The response was that it could be the expansion vessel. He says check any vents (probably to exterior) as it could be the pressure relief valve. Cool - will look. Thank him, please (and you too, Jim)
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Re: Heating Pressure Loss
[Re: Hyperlink]
#1627960
15/12/2018 13:36
15/12/2018 13:36
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Joined: Mar 2006
Posts: 8,852 Cambridge & Cotswolds
MeanRedSpider
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Is the system fully bled - you could be seeing a pressure change as any trapped air expands or contracts as it heats/cools?
I don’t know if totally bled though I’ve topped it up loads of times thinking that this may be what it is - but, if anything, the problem is getting worse - the reverse to what you’d expect if it was air
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Re: Heating Pressure Loss
[Re: MeanRedSpider]
#1627973
15/12/2018 20:35
15/12/2018 20:35
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Joined: Oct 2008
Posts: 6,783 In the coupe.
magooagain
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Club Member 259
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In the coupe.
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Loss of pressure normally points to a leak somewhere. And shows more when the system is heating and pumps are running.
A small leak will show a lot of pressure loss over 24hours.
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Re: Heating Pressure Loss
[Re: MeanRedSpider]
#1627994
17/12/2018 07:53
17/12/2018 07:53
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Joined: Mar 2006
Posts: 8,852 Cambridge & Cotswolds
MeanRedSpider
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It’s a big, f-off, Boulter oil-fired boiler that basically cuts out at 1 bar or less. The mid-point of the “green” zone on the pressure gauge is 2 bar.
Anyhow, I think I’ve found the problem - or, more accurately, Mrs MRS did. Visiting the “building site” that serves as my home, she asked Charlie why his bedroom carpet was wet. He said he’d been wondering about that...! Clearly, a first from Cambridge doesn’t mean you have a brain.
I’ve tightened the offending joint and hopefully that’s it solved. The first floor level at Charlie’s part of the house is 8” concrete slab hence no sign below and it was under his desk.
Thanks for the suggestions - as usual, it’s the simple answer - compounded by the chaos that my home currently is. Waiting on windows that, in true Grand Designs style, are months late.
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