Central Heating

Replacing traditional boiler with combi - replace all radiator pipes due to previous damp?

Anonymous user 23/02/2024 - 3.17 PM

I've just purchased a flat in a block built in the 1970s. I don't think much maintenance work has been done in the flat since being built if that helps with my query. Four gas engineers have quoted me to fit a new combi boiler, replacing the traditional boiler system. The water pressure as is fine as is with the old boiler system. Two engineers have recommended that the entire radiator circuit pipes should be replaced, as they believe that a combi with the current piping system won't hold the water pressure adequately. They also cited that the damp patches in the living room (internal walls so not rising damp) were probably caused by the radiator pipes but can't say for sure. The current copper piping is in the concrete screed so not easy to check. We will put new rads in each room. The other two engineers say this isn't necessary and I'm very confused. I'm willing to replace the radiator circuit if it's necessary. I don't want to be wasting thousands of pounds when it's not needed though. Many thanks in advance.