Radiator problems

[jessimae 10]

My heating seems to heat the single radiators ok but the double ones down stairs get hot at the top but cool at bottom had kier a couple ov times to resolve. Prob but I'm here again can any one sugest why

[luke1989 10]

Did KIER bleed the radiators when they came out?

[FORE 12]

May need balancing a bit.

 

Bleeding is needed when top is COLD, not hot.

[luke1989 10]

Ahhh, i see

[leelister6 10]

The system is probably full of sludge. It settles in the bottom of the rads so they only get hot at the top.

[jessimae 10]

Yes I just don't understand how it can be hot at top and warm at bottom

[leelister6 10]

Because the hot water only circulates around the top of the radiator because the bottom is full of sludge. Search for images of sludged up radiators.

[jessimae 10]

Thank u confirmed my thoughts, I said that to the kier plumber but they never seem to listen, I'll have to get them out again, thanx again for you help

[Marx 10]

I had to figure out this for myself. The upstairs rads were getting warm but downstairs were cold. I replaced the pump and still had the same problem. I added some sludge remover to the header tank, drained some water from the system and everything was lovely within minutes. Don't know if I had an airlock or what it was.

[ChrisT70 10]

already beaten to the sludge answer. might be worth getting the system powerflushed and treated. how old is the system

[leelister6 10]

A powerflush is ok if you've £350 - £600 to spare!

[pottedplant 10]

A powerflush is ok if you've £350 - £600 to spare!

 

Wow - a really honest answer

........can you get over onto the general forum and help the poster out whose sister has paid £160 for hours work!