Una Paloma blank blank blank

When Ed visited yesterday he brought with him a spare Paloma from his shed. Although it was tatty on the outside when we got the cover off its innards looked like new, and certainly in much better condition than the leaky one we've got, so it was with high hopes that Jim set about swapping them. No easy task of course, with both gas and water connections, and the flue to line up, and the whole thing mounted with very awkwardly placed screws. On top of that, the water connections were slightly different and had to be adapted. Still, after a couple of hours it was done, and with some trepidation Jim opened the isolating valve and I switched the water pump on... to find even more water pouring out than the old one, in exactly the same place. Bugger.

It'll have to be a new one then... Deja vue here; exactly the same happened with Andante. As Palomas are no longer made, pipes will have to be moved to fit a different model. On Andante we went for a Morco, but I never liked it; it never lit straight away when you turned the tap on, but after a brief delay, caught with a little whoomph outbof the hole in the front case. I never liked that for reason. On Tarporley they have a Vaillant; until I saw it I hadn't realised that this company, who make high quality domestic boilers (I've had one and was very impressed with it) also made LPG water heaters. But I've had no luck tracking down stockists - can anyone help me with that? I imagine that a Vaillant, if I can track one down, will, like its domestic counterpart, not be cheap, but could be worth paying extra for. Failing that it looks like a Morco or a Rinnai - does anyone have any recommendations?