Central Heating???

[Maria CM]

Any plumbing types out there to offer any advice?

Just fitted TRVs and now on refilling the syatem all upstairs (bar 1) are hot, all downstairs are cold. Pump feels very hot and am not sure if it is supposed to be or not.

Any offers?

best wishes,

Maria

[Edward]

Any plumbing types out there to offer any advice?

Just fitted TRVs and now on refilling the syatem all upstairs (bar 1) are hot, all downstairs are cold. Pump feels very hot and am not sure if it is supposed to be or not.

Any offers?

best wishes,

Maria
You may have a loop (not Hogarthian rigging) in the lower circuit, check all pipework for bleed vales.

Edward

[Maria CM]

OK - I AM THE MAN!!!!

Well... the girl actually.....

Now all bar one and a half radiators are hot, and all with only one small flood....:eek: :p :D

Thanks and best wishes,

Maria

p.s. hogarthian loops are beyond my jurisdiction, they don't come in purple as a rule and I can't fit my new pink toggle extenders to them ;)

[one_tc]

Don't forget to add some kind of rust inhibitor (such as Fernox), to prevent internal corrosion.

[Maria CM]

Don't forget to add some kind of rust inhibitor (such as Fernox), to prevent internal corrosion.

Thanks:) added some Sentinel stuff so hopefully should be OK. One radiator still cold but there are still gurgles so guess there is some air stuck still. Bleeding again I guess:)

best wishes,

Maria

[Nigel Hewitt]

Thanks:) added some Sentinel stuff so hopefully should be OK. One radiator still cold but there are still gurgles so guess there is some air stuck still. Bleeding again I guess:)
Refilling a central heating system is bleeding again and again and again.
Preferably while the pump is pumping.

[Happypig]

Refilling a central heating system is bleeding again and again and again.
Preferably while the pump is pumping.

A mate of mine who was a CH fitter for 25 years with British Gas says you should not have the pump running whilst bleeding as it can suck in air as well as let it out.
I've had mine drained 4/5 time to do work to it and there is a LOT of bleeding involved (and frequently a lot of swearing).

[Diver@50]

Be careful what you add to central heating system, it could create leaks.

[Edward]

A mate of mine who was a CH fitter for 25 years with British Gas says you should not have the pump running whilst bleeding as it can suck in air as well as let it out.
Very important as mine did just that.

Edward

[Maria CM]

All radiators now hot! Thank you everyone. House warm as toast:)

best wishes,

Maria

[Maria CM]

Woe is me!

Heating is hot... I thought this was the end of my central heating troubles... but no.....:confused: :( :eek:

I have an external boiler and don't know if this is relevant or not.

During the night it (the pipes etc) keep making REALLY LOUD gurglings. This happens whether the heating is left on at 10 degrees on the thermostat, or of it is off in the timer.

I had assumed that yet more bleeding is required but there was a flood three times last night in the loft from what I believe is the header tank overflowing, from what I think is the overflow from the central heating.

Anyway, I've attached a scan (I think) and if anyone has any suggestions to stop the night-time waterfalls I would appreciate it. DH is really grumpy because he was up in the loft last night 3 times mopping up water! Especially as he says plumbing is my jurisdiction, not his:(

thanks and best wishes,

Maria

p.s. the external boiler has been set to max 'no 6' as per severe weather instructions and has a frost stat

[Alan White]

Hi Maria

Longtime no talk.
I hope all excepting the heating is well with you.

Did you fit alll TRV's to the system?
If so and the stat is set at 10 Degrees, the TRV's shut down and your pump still runs, Makes lots of noise and pumps water up the vent pipe into the header tank....lots of noise and can overflow. (as you know by the sounds of things!)

On advice given all was good excepting the running the pump while venting,
this depending on the age and layout will suck air in and not let it out, makes the job 10x longer.

Advice is from me a plumber in a past life and the 4th generation of the family
to have been so.

Well done you for takling such a task, don't be put of by the experience,really.

All the best Alan

[Maria CM]

Hi Alan,

Many thanks and hope things are good with you too:)

I fitted TRVs to some but not all of the radiators as I read somewhere that putting them on all of them aren't good. Left the ones in the lounge and the bathroom alone.

To be truthful, DH keeps fiddling with the thermostat (despite plumbing not being his job) so it is getting a bit hard to establish what is really going on.

So... do you mean, turn off heating altogether overnight? That was what always used to happen but the external boiler failed to ignite a few times in the morning so DH decided to leave it on but on low. Sounded suspect to me but this isn't my forte (I'm better with hanging doors and stuff;) )

Do you think there is air in it too?

best wishes,

Maria

[Alan White]

Maria

That's good that not all are on TRV's as it would cause you problems.

The stat being set low at night is a good idea.
In commercial set ups they call it night set back, but 10 is a bit low, would normally be about 12-14 degrees or so. Ours is et at 15 Degrees at home.

If its making noise and pumping over, then air may still be in system .
Did you fiddle with the pump speed in trying to get the system free of air and left the pump speed up too high for the system??

Bleed the rads and see what speed the pump is set at, most have a 1 11 or 111 setting, normal run position would be 11 for most domestic pumps

Hope this help.

All is ok in my world at the moment, Mum is still fine and back to nearly normal.

All the Best for now, Alan

[Maria CM]

Thanks Alan - much appreciated. Ours was set on I and was fiddled about with but has been moved back a little while back - I suspect David has been fiddling indeterminately with things though. Will do as you suggest as go from there:)

Good news about your mum. My step-dad recently had a stroke whilst undergoing a triple bypass and is still having vision problems. He's been affected much worse though my acquiring a blasted bedsore whilst in hospital and keeps being rushed back in with infections in it. They are now talking about a skin graft to close it. Not sure what will happen about his vision though. He can see, just needs a magnifying glass now to read as well as his glasses!

best wishes,

Maria

[Maria CM]

More woe!!!

Flooded again at 9:30 and heating on normal levels:( :( :(

best wishes,

Maria

[Edward]

... but 10 is a bit low, would normally be about 12-14 degrees or so. Ours is et at 15 Degrees at home.


Don't let HWMBO{1} hear that, I have ours set on 15-17'C during the day, 10 at night.

Regards

Edward

[!] Thankfully she doesn't read these forum, and no telling her Robert.

[graham nurse]

More woe!!!

Flooded again at 9:30 and heating on normal levels:( :( :(

best wishes,

Maria

I am not a heating engineer so am probably talking rubish.

How cold is your loft? is the flooding being caused by a pipe freezing?

Graham.

[polybent]

Don't forget to add some kind of rust inhibitor (such as Fernox), to prevent internal corrosion.

I'll keep that in mind.. :p