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Hi all i have a query i have a customer who has a new build house she cant get hot water without putting the heating on although she does have an emersion heater on the hw cylinder, on the programmer there isnt a switch for hot water only which is what is confusing me is it the case that she...

Hi all my mate has aquired a honeywell 3 port valve but the job he wants me to do has two honeywell 2 port valves installed one of then is broken and i think its the actuator head thats gone does the head from the 3 port fit on the 2 port if so job done can anyone enlighten me on that many...