FULL COURSE CONTENT AVAILABLE MAY 5, 2026

In this course, Allison Bailes—author, presenter, and founder of Energy Vanguard—walks through best practices for sizing residential HVAC systems. He explores the real consequences of oversized equipment, including humidity problems, poor comfort, short-cycling, and higher upfront costs. Allison shares the process he uses to calculate accurate heating and cooling loads, select right-sized equipment, and design duct systems that deliver comfort quietly and efficiently. He also covers what builders and homeowners should look for when choosing an HVAC contractor, emphasizing the importance of working with someone who understands load calculations and system design.

Learnings:

• The consequences of oversized equipment, and how to avoid them
• Case studies of successful mechanical design and performance
• Details about the wide variety of HVAC system types
• The necessary fundamentals for calculating accurate heating & cooling loads
• An overview of HVAC design standards, including Manual J, S, and D
• Guidelines for proper duct design and installation
• How to choose a qualified HVAC contractor

PLUS! Access to supplemental resources.

Approximate running time: 45 minutes

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