I have a new style central heating system ( Ideal combi boiler,) and need to know what I must shut off / drain down to carry out some general plumbing, ie new taps, replacing bath etc in my upstairs bathroom, I have some knowledge of general plumbing but never before involving a central heating system,I would be very grateful for any advice received, Thank you, Tony T.
PS. installation date of new heating system 18/05/05.