Collection
HVAC System Core Skills
This collection covers the physics, mechanical cycles, and air movement principles needed to maintain residential heating and cooling equipment.
Why we made this collection
After this collection, you'll be able to:
Evaluate the refrigeration cycle to identify and fix mechanical failures
Complete combustion analysis on gas furnaces to verify safety and efficiency
Calculate air flow requirements and duct dimensions using standard design methods
Apply safety protocols and tool techniques for residential HVAC job sites
Courses
Air Distribution and Ventilation
Learn how air actually moves through a building, from duct design and Manual D calculations to air balancing, ventilation standards, and indoor air quality.
Introduction to HVAC Systems
Learn how HVAC systems actually work — from the physics of comfort to the tools and safety practices that define real fieldwork — and build the foundation every technician needs before stepping on a job site.
Heating Systems
Learn how gas furnaces, boilers, heat pumps, and electric systems actually produce and distribute heat — then pick up the combustion analysis skills to verify that gas-fired equipment is running safely and efficiently.
Refrigeration Fundamentals
Learn how refrigeration systems actually work — from the vapor compression cycle and refrigerant transitions to superheat, subcooling, and real-world fault diagnosis.