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Duct Performance Certification – Detroit, MI – 190320

March 20, 2019 @ 8:30 am - March 22, 2019 @ 4:30 pm

Training Summary

Why You Should Attend

Today, many homeowners experience problems that HVAC equipment cannot solve. A contractor who understands the “House as a System” approach, has a “leg up” on the competition. Participants in this class leave with a better understanding of how problems can be diagnosed and what they can do to repair them. This class covers a great deal of technical information, but attendees will also learn basic lead generating and lead converting techniques.

This three-day intensive technical class focuses on the problems and opportunities created by duct leakage, poor design and installation. In addition, this class covers other duct system challenges: e.g. high static pressure, low air flow, poor insulation, poor terminal selection, closed door pressure imbalances. The participant will have an understanding of airflow, how to design/size and install a duct system, how too properly use a ductulater for sizing and back engineering and why it is important to have a proper size duct.

All attendees will receive a Comfort Institute Duct Performance Certification by completing and receiving a passing grade on our certification exam. All attendees will also have the option to take the Retrotec DTC exam for an additional $75.

What You Will Learn

  • Impacts of duct leakage on system efficiency and comfort in layman’s terms
  • Why high efficiency variable speed & 2 stage equipment is most affected by bad ducts
  • Impacts of duct leakage on dust, IAQ and combustion safety
  • Why “basement ducts” inside the house still need repair
  • How to present your findings positively as “opportunities” not “problems”
  • Six ways to demonstrate and measure duct leakage compared
  • Manual duct sealing materials and techniques
  • Aeroseal duct sealing process explained
  • How to seal building cavity returns
  • Quality control duct sealing testing-out options compared
  • Impacts of low airflow & poor duct insulation on system efficiency and comfort
  • How to measure and interpret external staticpressure & drop across filters and coils
  • Effects of duct sealing on static pressure and airflow
  • Basics of replacement duct design and common mistakes to avoid


March 20, 2019 @ 8:30 am
March 22, 2019 @ 4:30 pm
Event Category:




Tracy Martin