Yep. Thats right. We moved it from my mums back in June. Hopefully going to get it in late in September.I think you said somwhere - do you have a rayburn or are you about to get one?
Rayburns are cheap second hand, but if you're buying new, I'd have a good look at Esse also.
We had a top loading Aga boiler once. Scrapped now unfortunately otherwise i was going to use it for water heating!