hello i want to remove my radiator. one end has a thermostat, which end is likely to be the return end? and which end the flow?
cheers
cheers
info required. which end is flow or return?
- Thread starter willy6215
- Start date
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it can be either end , to check turn the heating on and whatever pipe gets hot first is the flow and the other the return.
However most TRVs are bi directional and can be fitted on the flow or return, They usally have arrows on the side of the valve that indicates flow , or if they are bi directional
However most TRVs are bi directional and can be fitted on the flow or return, They usally have arrows on the side of the valve that indicates flow , or if they are bi directional
cheers. on the thermostat end there is a arrow on the knuckle facing to the floor?
what would that mean?
what would that mean?
sorry the thermo end with the arrow is getting hotter first.
the reason im taking the rad off is because it dont get that hot especially at the bottom. any ideas?
im going to flush it and hope that works.
i have tried to balance it the best i can but no good.
the reason im taking the rad off is because it dont get that hot especially at the bottom. any ideas?
im going to flush it and hope that works.
i have tried to balance it the best i can but no good.
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cold at the bottom is poor flow, especially if clogged with sediment or if the pipework is poorly designed (esp with a rad that was added on later). A very good way is to take off the rad (turn it over immediately so that the open ends are at the top before you carry it outside) and flush it through with a garden hose.
verify that both the valves have good, unobstructed flow
if you have black sludge/sediment it will be all over your system, including in the boiler, not just in the one rad.
Have a look in the Feed & Expansion tank in the loft (if you have one) and bale out any mud to prevent it being drawn down into the radiators.
You can get a chemical which loosens sludge so that you run the circulating pump for a few weeks and it will stir up the sediment and carry it round in the water, so that a lot of it comes out when you drain and flush. I have used Sentinel X400 which will cost you about £15 and is one of the best.
If you can afford an extra £100 and do basic plumbing, a Magnaclean is wonderful at trapping circulating black sludge.
It is essential to use an inhibitor such as X100 on refill.
verify that both the valves have good, unobstructed flow
if you have black sludge/sediment it will be all over your system, including in the boiler, not just in the one rad.
Have a look in the Feed & Expansion tank in the loft (if you have one) and bale out any mud to prevent it being drawn down into the radiators.
You can get a chemical which loosens sludge so that you run the circulating pump for a few weeks and it will stir up the sediment and carry it round in the water, so that a lot of it comes out when you drain and flush. I have used Sentinel X400 which will cost you about £15 and is one of the best.
If you can afford an extra £100 and do basic plumbing, a Magnaclean is wonderful at trapping circulating black sludge.
It is essential to use an inhibitor such as X100 on refill.
thanks for your advice.
i have a worcester combi boiler, so no tank in the attic.
im going to take the rad off soon and flush so hope it works.
i have a worcester combi boiler, so no tank in the attic.
im going to take the rad off soon and flush so hope it works.
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