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HAZEL GREEN Energy Companies
1 companies listed

Basic Member
Since Jul, 2020
Terry Hefel started Hefel Geothermal in 1984.  He holds Heating Ventilation and Air Conditioning (HVAC) licenses in both Iowa and Wisconsin.  He is a member of both the Iowa and Wisconsin Heat Pump Associations and is an associate member of Dubuque Homebuilders and Associates.  He has…
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