The whole set up annoys me. As a business strategy they are phenomenal, offer the installer loads of goodies to bribe them into fitting their boiler along with the easy sell of a reputable brand, tv advertising you can't get away from, accredited installer package with stepped warranties for people who fit more etc
But the product is utter tat, poorly designed by someone with bottom line margins at the forefront rather than a product that is reliable and easy to work on. Cheap materials that fail hence greater profit margins on parts, poorly finished with sharp edges. If it had an ariston badge on the front no one would fit it, and you wouldn't know any different.
as I say, great business strategy and an easy sell for the moral less heating company. It's like they can do no wrong, put the badge on a ****ing candle and you'd still have people shouting about how good it is and paying top money.