Winstel Controls, Inc. 


Wednesday, October 10, 2018 from 3:30 PM to 7:30 PM EDT
Add to Calendar


Tri-Country Training Room
10126 Transportation Way
Cincinnati, OH 45246

Driving Directions 


Larry Harmon
Winstel Controls

Air Flow Fundamentals &
Residential Duct Sizing 

We are excited to offer this Air Flow and Duct Sizing sheet metal class to our Winstel Controls contractors. This class is presented by Jim Mayer of Southwark Metal Manufacturing. This class has sold out fast the last year 3 years!  We expect this class to fill up fast again so please book early!

Course Description:

This course provides all the primary information and theory needed to understand how air flows in a residential HVAC system. It explains how the quantity of flow is calculated based on the energy demand for a particular residence and the effect that the system components have on this air flow. This course also provides more advanced information and theory needed to calculate the proper duct size in a residential forced air system. It will explain how basic air flow fundamentals must be used along with complete information on the dwelling, all installation components, proposed equipment, and best practices for installation.

Topics include:

  • Air flow measurements and terminology
  • Heat gain/heat loss dynamics and calculations
  • Basic residential design and air flow calculation
  • Sensible heat formula and CFM calculation
  • System component pressure drop dynamics
  • Forced air pipe/duct and fittings review
  • Duct sizing theory and velocity limits
  • Complete instruction for the use of the sheet metal duct calculator
  • Supply distribution system and return distribution system review and calculations
  • Duct gauges and good installation practices
  • Residential venting engineering and installation and filter size calculations
Continuing Education Credits:
  • 4 hours KY - HVAC Journeyman - #HVACCEC-700001
  • 4 hours NATE Approved - Course #5891-0001
(Approval refers to recognition of educational activities only and does not imply approval or endorsement of any products of the company displayed in the program or brochure.)

Dinner, dessert and beverages will be served.  Although there is no charge for this class, reservations are required, and may be further limited at Winstel Controls’ discretion.  Class size is limited and this system will stop taking registrations once that limit has been met.

NOTE: You must have an email address to register online.  If you do not, you can click here to download a registration form that you can fax or mail to Winstel Controls.  It must be received at least 7 days prior to the class date.