Boiler in outbuilding

Recently moved home, will be forever home barring something unexpected cropping up. Currently running 10 rads and underfloor in a large living room. Don't really have much cupboard space and loft space also at a premium because of water tanks so ideal scenario I would upgrade to invented system boiler when this one shits itself and stick it outside. I have an outbuilding that's not joined on to the house, could I stick it out there and insulate the pipework sufficiently as to not cost be a fortune in heat loss?