san remo 16kw or 25kw back boiler stove

hi guys,
im currently looking into stoves im building a 4 bed two storey, i want to put a stove with a back boiler in that will heat the rads, 9 of them.

i have seen san remo models 16 or 25 kw

the 16 kw is €1250.

does any one have experience with these or advice on any other models and what they are like?
thanks!!

hi
the 16kw should be enough to heat 9 rads but if they are doubles then the 25 would be better. they are about the same size to look at .
hope this helps
mel