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..is fed from, and returns to, the hot water cylinder (I'm sure there's a name for this), and so heats up from the hot water not the central heating system. I'm shortly rejigging the bathroom and have got a towel rail-type radiator. Does it matter how the flow and return enter this type of heater - does one have to on the top or not, and if so which one??!
Many thanks for any info on this!javascript:emoticon(':roll:')

A towel rail feed and return is connected to the bottom two connections, and one top opening is blanked off, and the other is the bleed valve.