I have an unused Granary for conversion to residential. It is a mostly redbrick and grey stone construction. It is within a 'quadrangle' and has a river pretty close by (10m) on another side; not alot of space around it!
Given it will have the current levels of insulation installed, heat loss should be fairly low, although very likely not as low as a modern build construction. I am likely to go with UFH on the ground floor throughout.
Siting a gas tank could be do-able although it would have to be some 30-50m away, and require digging up the yard for pipework etc. An oil tank would be more tricky due to the nearby watercourse etc, probably a no-no.
There is a large expanse of roof, so some solar panels for secondary heat would be a likelyohood.
So, has anyone real life experiences of using Air Source HP's, both in terms of output, useability, install and run costs compared to oil/ gas etc?
I have 3ph available.
Your thoughts thank you gentlemen.
Tim..