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Hot water cylinder coil balancing and connection questions.

Postby corkee » Tue Aug 14, 2007 9:35 pm

I'm fitting a new hot water cylinder (vented) fed from a condensing boiler.
My old cast iron (Ideal Concorde WCF) boiler fed the old cylinder.

Two questions:

1 The old system had a gate valve on the return from the coil, presumably to 'balance' the circuit.
All new system diagrams I've researched recently don't show this valve - does this mean I don't need to fit one?

2 My old system had the feed in at the bottom coil connector and the return out of the top coil connector - not sure why - doesn't sound right to me - better heat transfer if the other way round sounds best and current diagrams back this up?

Thanks in advance for any advice,
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