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Each one teach one. Learn it. Prove it. Pass it on. · Catalog 2026-10-20 · 2,335 skills · 32 groups · People, Workshops and numbers shown are demo content.

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Catalog/Trades/HVAC & Refrigeration

Trades

HVAC & Refrigeration

Diagnosing common HVAC faults
Ductwork basics
Furnace maintenance
Heat pump basics
How HVAC systems work
Refrigerant handling and certification (e.g. EPA 608 in the US)

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