Thanks for the advice everyone, I did ask the chap who is going to put the boiler in for his advice (he has the Logic in his home) and he wasn't sure the extra money I'd need to pay for the vogue would be worth it although he did say the Vogue is a lovely boiler; I think he was probably trying to save me some money but I'd rather pay a bit more if it's worth it; awkward some of us customers eh:lol: