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Sorted!!! All about balance nothing to do with vertical rad or pressures,contractors said they balanced system yesterday, my backside did they,did nothing but give me a load of ........!!! Thanks to all for helpful comments much appreciated!

Sorted!!! Nothing to do with it being a vertical rad but all about balance,the dumbos came back yesterday and said they balanced the system,actually they did nothing appart from spin me a load of ........ !!! Thanks for all your helpful comments,great site.

Hi Andy, yes magnaclean. The installers came back yesterday and tried balancing the system but to no avail, I,ve been having ago this morning since my last post and I think I might have cracked it. We have been running the new system from a lounge located wireless room stat which I was advised...

Hi,I posted something similar yesterday,my 12 tube 1800 x200 rad ran fine on a 26 year old micro bore system until I had a recent boiler change. Done the balancing thing pressure running hot at 2.2 bar but still very cool. Gone from open vent system to sealed system. I,m thinking that during...

Only changes to pipe work since rad worked fine is in garage to boiler and in airing cupboard to connect mains pressure fill point,also pump removed as one now in boiler. Re both valves getting hot, first one together hot is at TRV then return side but not as hot as some water is circulating...

Hi,,I take it you mean the flow and return at the boiler,I can,t say but I will check at the rad to see if the T R V heats up first at the moment I,m pretty sure it does. Is that what you meant? Thanks

No power flush,most seem to thinks it does,nt work well on micro bore can't get flow,they did a hot flush and fitted a magna clean. Not seen any abv so don,t think I have one. All the rads appear to be working as before. They mentioned balancing and did it. Thanks

Sorry forgot to add, only one tapping for bleed valve which is at top and two for bottom flow and return. Thhanks

Thanks, the rad is about 12 years old, system has always been well dosed with furnox and ran very well till boiler change usually set on 2.5 on stat. Interestingly the boiler installers said the system pressure needs to be over 2 bar for this type of rad to work, I just checked with boiler...

Had a vaillant ecotec plus 615 fitted recently only for economy reasons. As the system ran well on the old classic balanced flue unit,this was a vented system.All good with new sealed system except the bathroom vertical rad (1800 x 200 12 tubes @ 25 o/d) will barely warm up. Shut every thing off...