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cold9
Jan 5, 2010, 08:32 AM
Hi,I wonder if you can help.. when both hot water and heating is on I'll get a tank of hot water... sometimes, but when its used it won't allways re heat,boiler is a new condenser and seems to ruin OK,coul it be the "honeywell" switch over valves as system (other than boiler is old,Thanks.

ballengerb1
Jan 5, 2010, 08:39 AM
Are you in the UK and is your storage tank in the attic or air cupboard?