sorry to sound thick but when balancing the rads the experts say 20 deg difference between the flow and return on the rads using 2 thermometers don't have such things so basically should the return be red hot , hot, or hand hot just as a rough guide thanks
balencing
- Thread starter NEILAIDKEY
- Start date
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many thanks for your reply my prob is getting that balance right i start at the closest rad on the run with all others switched of at return end with the feed on when i get the first one hot and the return feels like its ok to me i move on to the next ect ect but as i get to the last ones it all goes to pot and the upstairs go cold, the feed pipe from boiler to the end of the run is very hot but the return is mostly cool or just warm, changed the pump had all rads of n washed them any ideas will be greatly received
S
scaby
neil how did you solve the problem you had with your other posts?
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i have drained of again took all the rads out and power flushed them hit them with a rubber mallet washed all pipes through after going round tapping them with mallet, i then filled the system through the drain pipe on the feed from out side tap, it seems to have made an improvement all the upstairs rads are getting hot and balanced the prob is now again the 2 down stairs rads that are back to back only get hot half way down no matter how hard i try to balance them if i switch of upstairs they get fully hot, also when i switch of to bleed it seems to get cold very quick like the water has back flowed
S
scaby
see if the valves either side of the pump are fully open
yes they are, cannot for the life of me think what else could be wrong, any ideas would be great
S
scaby
on the pump case which way is the arrow pointing?
arrow pointing down on the return same as the one i took off, it is pumping well
S
scaby
last thing i can think of (except sludge)make sure the vent is at least 4 inches above the level of the small tank in your loft, the level of the water will rise when its hot,
will check it m8 but im sure it is already, many thanks for your help it was good of you to try thank you
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