I think the thing to worry more about is the reliability and costs associated with a fix, the vogue is 10 years peace of mind as all the faults fixed are in the 10 year guarantee at no extra cost to you, other than a yearly service which you have to do anyway whichever brand you go with, the intergas at best are about half that if the gas engineer has been to intergas to be trained, if not I think its about half that again, the reason i dont know is that I dont fit Intergas any more due to the problems with them, yes problems, I like a lot of people bought into the less is more= reliability, wrong, I have had numerous faults and call backs, the most worrying thing was when I went back to service them they were wet through inside, I was convinced I had done something wrong, until I was speaking to intergas technical and they let it be known that the fan had a fault in the design and that it was sucking water back into the boiler, they said they would send a fix out that I could fit, I could fit! that was the icing on the cake, no announcement, no warnings as well as the spark generator problem, as a gas engineer I expect them to contact me when they know of a fault and fix the fault them selves, so what would I go for, well peace of mind at no cost to me is worth everything, the ideal logic only comes with 7 years, 7 or 10 for a few more quid, the choice is yours.