I have been told that many new combis have aluminium heat exchangers, but the quality manufacturers use stainless steel. Is it worth seeking a S/S model for extra long term reliability? And who to choose on this basis?
Glen
My old boiler is a 25yr old Glowworm 45-60 standard boiler (which is still working, if expensive), on a one pipe system, with copper tank in the airing cupboard. Can I replace it with a new more efficient condensing boiler without changing my piping system? I have 12 radiators but usually 4 or 5 are...
