CT W9 Limited Direct Exchange Geothermal Contractor Direct exchange geothermal systems require precision in refrigerant loop installation and ground loop design—mistakes here cost tens of thousands in repairs. CT W9 training covers pressure testing, heat pump integration, and soil thermal properties that separate reliable installations from field failures. Contractors who grasp these mechanics solve complex site challenges on day one.
Connecticut Certification Exam
CT W9 Limited Direct Exchange Geothermal Contractor Certification Exam
Original price was: $149.00.$124.00Current price is: $124.00.
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