Air/Ground source heat pumps

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Gloworm
margo - newbie
margo - newbie
Posts: 1
Joined: Tue Nov 11, 2008 2:45 pm

Air/Ground source heat pumps

Post: # 151628Post Gloworm »

I'm assuming air/ground source heat pumps are not that economic otherwise we would hear much more of them. Have any figures which we can believe been produced to justify these methods ?
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