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Residential Senior Certified


HVAC System Overview

HVAC Systems

HVAC systems account for 30 to 60% of a home's energy bill. This lesson sorts out how each of the common residential heating and cooling systems works, and reviews the basic issues that affect their performance.

Learning Objectives

At the conclusion of this lesson, you will be able to:

  • Review basic HVAC terms and definitions
  • Explain the differences between different types of heating and cooling systems
  • Identify the efficiency ratings for different HVAC systems
  • Summarize how the refrigeration cycle works
  • Identify basic duct types

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