I note your comment about Ariston boilers in an old thread (2011) - and I'm being pushed an Ariston by a heating engineer I'm currently dealing with. I need a system boiler, is your beef with Combis or the brand as a whole? I note Ariston and ATAG have the same parent company, and ATAG have quite a good reputation - what's your take on this please?
Nozzle
Nozzle