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Earth Heat Engineering is a geothermal heating business based in Hampden, according to a mainepublic.org piece, in which Nickels said he has installed more than 50 geothermal units from Down East to Aroostook County. John C. Nickels holds Maine HVAC license PNT7432, active on the state registry.
“Earth Heat Engineering”
“Earth Heat Engineering”
“Today, Nickels owns Earth Heat Engineering, based in Hampden, and said he has installed more than 50 geothermal units from Down East to Aroostook County.”
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2 changes recorded — last scanned Oct 30, 2026.
Typical Maine range for this kind of work, from regional averages — not a quote from Earth Heat Engineering. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,500 – $10,300
Typical HVAC project around $7,400
