"Jeff" wrote in message
...
Thanks, I've considered the vented thermal stores but on balance I think
I'm
committed to a standard vented cylinder. I've got loads of long dead legs
so I'm planning a pumped dhw loop with a return tapping in the cylinder.
I
don't think you can do this with hot water at mains pressure, can you?

Yes you can have a secodnary circulation loop on a heat bank/thermal store.
Christian fitted a DHW only Pandora heat bank. He swears by it. Try
Newark who make reasonably priced thermal stores. Dircet from the makers.

So my question really is - is this an awful lot of money to pay for a
regular albeit high performance cylinder, and are there alternatives, ie,
cheaper cylinders? Or is this just the price of a cylinder nowadays?

There are cheaper makers around. Try the list I gave. Get quotes for a
quick recovery cylinder and a direct thermal store.



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