Course Content Expand All | Collapse All Lessons Status 1 Day 1 - Introduction, InterNACHI, Roof & Chimney, Roof Structure & Attic Introduction InterNACHI Roof & Chimney Roof Structure & Attic 2 Day 2 - Electrical System, Cooling System, Heating System Electrical System Cooling System Heating System 3 Day 3 - Heating System, Inspection Report, Structural Basement & Crawlspace Heating System Inspection Report Structural Basement & Crawlspace