wrote in message
...

BTW, I made several hours of attempts to find anyone in the Portland (OR)
metro area who was competent to discuss ground source heat pumps. The one
designer I found, who did the People's Food Co-Op system, said the
underlying basalt where our home is (said homesite having been selected to
avoid soil liquification when the Big One hits) makes vertical well
drilling very chancy.

Which kinda begs the question....

Didja happen to ask him about horizontal well drilling ???

G

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SVL