Hi I've just had my 24year old Potterton Lynx RS Combi condemmed because of a small Fan Air Flow Sensor (300303) being obsolete so i'm now looking for a new one, but there is so much choice and a big difference in prices. I have been recommended a Ideal Logic + but not heard much about these apart from the 5 year warranty, apparently Worcester start a 5 year warranty in september but some of theses are Minty in price, then there's Veissman, Glow-Warm, Potterton, the list is endless, can anyone offer any decent advice and opinions Please, cheers Gary