Hi, What is the reason, when installing an open vent boiler system, for using an INVERTED cold feed entry into the main feed pipe from the header tank in the loft to the boiler flow pipe? What is so important about the inverted pipe that an ordinary `T` fitting would not suffice. Thanks Ken
I want to take out a Potterton Flamingo 50 boiler , it has 2 22mm and 2 28mm pipes. The 22mm I assume is for the ch and dhw, does the 28mm pipes serve as the cold water fill from the roof tank and the expansion pipe? In dissconecting the pipes I obviously want to maintain the cold water supply to th...
