[Taf]

Our Baxi combi was a total lemon. Almost every part was swapped to make it work, but in the end it was exchanged for a Worcester-Bosch.

But they, too, have common problems. The pressure control bladder develops pinholes that spray out small amounts of water from underneath. The unit has to removed from the wall before it is simply unplugged, one screw removed, then the unit replaced. The part is only £40, but a tech can charge £100+ to do the job. Plus the flue has to be replaced every few years as it corrodes from within. Many heating techs I know don't like them due to the amount of plastic parts that can also develop pinholes.