If you are unsure as to which combi boiler will be the best for your budget, speak to one of the knowledgeable members of the support team at direct heating supplies we are here for you hours for your convenience! Have any problems with your water mains? Is your old boiler on the blink, and you have no hot water ? Most baxi boiler faults where the system has lost pressure are because of leaks in the system. I have never met a more knowledgeable and efficient technician.