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Home
GAOI Info
About Geothermal
Utility Programs
Incentives
Related Links
Heating Cost Analysis
Find a Dealer
Membership
Getting the Dirt on Geothermal
Certification & Training
Upcoming Events
2026 Illinois Geothermal Conference
Contact Us
Member Area
Member Events
In The Loop
GrowGeo
Store
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Heating Cost Analysis
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3709 Alder Wood Drive, Springfield, IL 62712
(217) 836-8282
kridley@gaoi.org
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