Currently got a 20 year old Ideal Standard Classic boiler with Megaflo hot water cylinder in the airing cupboard. Both are starting to give us problems - various leaks in the airing cupboard, a few repairs on the boiler over the last couple of years. I really want to switch to a combi boiler but everyone keeps trying to talk me out of it. The way I see it is, we currently have TWO troublesome appliances - why not switch to one (that will be under guarantee until we probably sell the house in 5 years!)? Otherwise, if we have a nice shiny new boiler then we still have to deal with the crummy old leaky water tank. And I'd imagine it would cost a lot extra to replace the water tank as well. Plus we'd gain a nice big cupboard for other stuff (water tank is huge).
We live in a medium sized 3 bedroom house with 2 bathrooms. 2 adults and 2 kids. Am I really being so unreasonable to want the combi, and am I right in thinking it would be cheaper to do that?