Considering boiler change, from conventional system (Glowworm spacesaver) to sealed system boiler (ultracom2 30 sxi). Boiler is currently in the subfloor area and I have about 5 foot headroom. I want to keep the new boiler in the same place for ease of installation. I will be getting a condensate pump fitted but don't know what will happen with the PRV pipework. Just want to be clued up so I don't get ripped off. There is currently a sump pump in the subfloor area to keep that area dry when it rains a lot. Can the PRV pipework be run to the sump? Or any other solutions to this? Thanks in advance, Steve.