We have had a number of 4 radiators fitted and finding that 3 of them are hotter at the outlets than the inlets. Is it possible that the engineer has put the TRVs on the wrong ends? Thanks
what makes you think the inlets are hotter than the outlets ?
The hottest pipe is the flow and the cooler one will be the return. With many TRV's now - it doesn't matter what side of the radiator they're fitted to. They can be fitted to the flow or return.
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by chrisonedog » Fri Nov 23, 2007 8:31 pm 
