Hi. I'm looking to replace a Potterton system boiler. It's an 'Ultra D.V.' It's got a honeywell diverter valve inside the boiler (hence the name D.V. I guess! DUH!) . I don't want to change all the pipework as it's buried in a concrete floor in a flat and there's a megflo in the airing cupboard so I don't wanna rip that out either to fit a combi. Anyone know which system boilers come with a diverter inside?
