Ealing Worcester Bosch Boiler Installation This was a tricky installation that had to be done in stages to create the least amount of disruption possible for the clients. Their old Worcester Bosch boiler was situated in the middle of the house, which is fine, but new condensing boilers require a waste for the condensate. SO this had to be done in stages, firstly by installing the Condensate run from the Hallway boiler cupboard, through a disused chimney breast, underneath a raised shower tray and outside to meet with the rest of the wastes. At the same time I put in central heating cleaner and let that run in the system for a week prior to the boiler installation. When it came to the installation I wanted to reuse the vertical flue hole, so had bring the new boiler forward by quite a bit. This was achieved by packing out the stone wall with Ply. Pipework connections were fine, only one weeping leak after testing, where the nut was tightened up tighter. All good, client was happy and I was called back to fit new WC and bath/shower mixer.