I think its time to replace my 20 year old boiler. It still works, although takes longer to fire up than it used to. I'd like to do it before it fails, and of course a new one ought to be more efficient anyway.
The boiler is on the wall of my 'integrated' garage with my workbench below and I have a tool-rack to the left of it, a shelf to the right, and some drawer units below. Although I could move these I'd prefer not to, so ideally I'd like the new boiler to be in the same place.
So can any of you kind folks recommend a replacement which would slot into the exisiting flue hole and not be any bigger on the inside than the boiler is now?