Quote:
Originally Posted by DonT
A friend has a mini-excavator I can rent for $100, so I can trenching in a ground loop about 8 to 10 feet deep.
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Is that normal in your area? It seems very deep to me. Folks in my area seem to think it is counter-productive to go too deep. I believe the thinking is that the ground temperature lower down won't "recharge" so well during the summer. Around here 1.5 to 2m is common.