Recent content by fazal

hi, i have a similar problem with my one pipe system. The downstairs rads are cold except the very top and side 2 inches. The upstairs ones are only hot at the top half . The pump is on full and closing all but one rad doe snot help. I think its sludge in the system, and am planning to flush...

thanks for the advice, i 'l try to flush out the downstairs rads. If i close the upstairs rads, the downstairs still dont heat up, hot water seems to go up into the rad s but goes straight up and across the top and down to the return valve. could it be convection ? The boiler is on the return...

Hi I have the similar problem to one mentioned elsewhere and the suspect was the the anti- gravity valve? , its an old gas back boiler with grudnfos 15-50 pump fitted on the return flow. The HW is gravity fed i think. Its the original system from when the house was built in the 1960's. The...

Hi Was it the anti- gravity valve? I have the same problem, its an old gas back boiler with grudnfos 15-50 pump fitted on the return flow. The HW is gravity fed i think. Its the original system from when the house was built in the 1960's. The upstairs 3 rads get hot at the top half but not...

Did you get this fixed as i have very similar issues with mine. Downstairs are 90% cold only the very top and sides ae hot. I have a single pipe system and back boiler. Closing upstairs rads which have the top 60% hot , does not help the downstairs ones heat up.

Posted: Sun Oct 09, 2005 9:27 pm Post Subject: downstairs rads cold Hi I have a similar problem to that mentioned in another post (copied below). I have a single pipe (or even single feed - not sure which one) system . I moved in 1 yr ago and the ssystem is probably the original...