Thanks for the reply. So if I have it changed to a 2 pipe system will this improve things. I know of plenty of people with all the tanks in the loft with no problems. Are these likely to be 2 pipe systems?
I am wanting to move my hot water tank from the bathroom into the loft. I have been advised that I have a one pipe system and that if I move the tank into the loft that I could have problems i.e. it might not heat up properly or worse not work. Is this correct?