Radiators cold at bottom

ojnet · 26 Jan 2005

ok, I know this has been kinda covered before but I would appreciate clarification, my system is now 12 years old I have had a new Combi boiler fitted about two years ago, but the system was not power flushed when installed.
This weekend I will be looking at several radiators that are getting hot at the top but remain cold at the bottom, would I be correct in assuming this problem will be caused by sludge ?
as I only run about 50% of my radiators can I forget about the balancing issue ? or should I keep that in mind?
Yours a total radiator flushing novice
Kevin

htgeng · 26 Jan 2005

ojnet said:
This weekend I will be looking at several radiators that are getting hot at the top but remain cold at the bottom, would I be correct in assuming this problem will be caused by sludge ?
Kevin

yeh. powerflush, ££££

kevplumb · 26 Jan 2005

open the locksheilds another 1/4 turn see if it helps

ojnet · 28 Jan 2005

Tried the Quarter turn but still same

kevplumb · 29 Jan 2005

take the rads off and put a hose thro them

KWB · 1 Feb 2005

Any luck with this problem? I have same but my system is only 2 1/2 yrs old so this can not be sludge. I got a plumber in and he said this was normal which I know is crap because they were fine just before Xmas. I figure there may not be enough water in the network but don't know how to fix this?

ojnet said:
ok, I know this has been kinda covered before but I would appreciate clarification, my system is now 12 years old I have had a new Combi boiler fitted about two years ago, but the system was not power flushed when installed.
This weekend I will be looking at several radiators that are getting hot at the top but remain cold at the bottom, would I be correct in assuming this problem will be caused by sludge ?
as I only run about 50% of my radiators can I forget about the balancing issue ? or should I keep that in mind?
Yours a total radiator flushing novice
Kevin

andy · 1 Feb 2005

KWB said:
Any luck with this problem? I have same but my system is only 2 1/2 yrs old so this can not be sludge. I got a plumber in and he said this was normal which I know is rubbish because they were fine just before Xmas. I figure there may not be enough water in the network but don't know how to fix this?

ojnet said:

ok, I know this has been kinda covered before but I would appreciate clarification, my system is now 12 years old I have had a new Combi boiler fitted about two years ago, but the system was not power flushed when installed.
This weekend I will be looking at several radiators that are getting hot at the top but remain cold at the bottom, would I be correct in assuming this problem will be caused by sludge ?
as I only run about 50% of my radiators can I forget about the balancing issue ? or should I keep that in mind?
Yours a total radiator flushing novice
Kevin

Click to expand...

check the pressure gauge

kevplumb · 1 Feb 2005

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Radiators cold at bottom

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