Old or new system Fuzzy (setting aside the obvious age of the new rad)?fuzzylogic wrote:Any plumbers on the site, could use some advice. Recently had one of these vertical radiators installed, the radiator itself has 7 panels, but only 4 of them are heading up.
Any thoughts?
If old, you also need to consider a build up of corrosive sludge in an old system. If the system was drained to fit the new rad (and it may not have needed to be), it may have dislodged corroded sludge and it may have blocked your nice new rad.
if you have an old system, have you cold spots on any other rads? Why did you get the new rad? was it because of a leak in the one you replaced?
Worst case scenario is that you have experienced "over-pumping" where hot water has been expelled to an overflow tank where it has become oxygenated, then returned to your system and the oxygen allows the rads to rust from the inside (not the copper pipes though). If this needs addressed, ensure you add an anti-oxident to the system when sorted.
I would suggest you bring the plumber back that fitted the rad (presuming you used one), and tell him/her that it is not performing correctly. It may just need the return valve adjusted, or as BR has suggested, it may have unbalanced your system, particularly if it is a different size from the one it replaced or has different inlet/outlet pipe diamater. If so, I would hope they should do that FOC as it wasn't done properly at time of fitting and should have been included in your fitting charge.
That's all I've got to offer ..... I think.