Radiators hot on top, cold on bottom

stevegrafing · 20 Mar 2004

We have this problem in most of our radiators. I have tried bleeding and it does not help. Does anyone have a recommendation?

Thanks.

Steve

DP · 20 Mar 2004

Look for 11 degrees Centigrade dtemperature difference between flow and return at the radiator.

You may have to increase pump speed.

You may also have to increase boilerstat setting.

What boiler are you using?

ollski · 21 Mar 2004

That would normally be a problem of sludge in the radiators...is the cold spot in a dome shape?

DP said:
Look for 11 degrees Centigrade dtemperature difference between flow and return at the radiator.

Or of course the new standard of 75 / 65 degrees our European freinds have imposed

Send us some system details.

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Radiators hot on top, cold on bottom

stevegrafing

DP

ollski

DIYnot Local

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