I've bought a new radiator to replace one that looks a bit old and battered. The problem is that I can't get one that's exactly the same length as the old one. The new one is about 4cm shorter. Normally, I would simply modify the pipework local to the rad so that it fits the new valves. But this particular system is a beast to drain down and refill, so I'd rather not do that unless it's absolutely necessary. Does anyone know if it's possible to buy some sort of extention piece that would fit the gap between the new rad and the existing valve?
"Does anyone know if it's possible to buy some sort of extention piece that would fit the gap between the new rad and the existing valve?"
Yes it is possible and ther are freely available. You'll be needing something like these ones from BES (http://www.bes.co.uk/products/114.asp). Scroll down about 2/3rds of the page to find.
Perhaps I ought to also add that the pipe tails coming up through the concrete floor are only 3" high so no room to freeze the pipe and do a pipe modification.
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