ground source heating
If you don't mind me asking, how have your gas / electric bills
varied since it was fitted ?
I'll see if I can find out - haven't actually done the sums...
but if I can find the bills then I'll let you know
Cheers - might also be worth putting in the wiki to give others
an idea about real-world installations, rather than a salesmans'
"in a perfect world" figures...
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