Impact of Horizontal Ventilation - CEUs


Under the United States Department of Homeland Security (DHS) Assistance to Firefighter Grant Program, UL examined fire service ventilation practices as well as the impact of changes in modern house geometries.  There has been a steady change in the residential fire environment over the past several decades including larger homes, more open floor plans and volumes, and increased synthetic fuel loads.  This series of experiments examine this change in fire behavior and the impact on firefighter ventilation tactics.

Two houses were constructed in the large fire facility of UL in Northbrook, IL..   Fifteen experiments were conducted varying the ventilation locations and the number of ventilation openings.  This online firefighter training program details the results of these experiments to provide knowledge the fire service can use to examine their thought processes, standard operating procedures and training content.  Several tactical considerations were developed utilizing the data from the experiments to provide specific examples of changes that can be adopted based on a departments current strategies and tactics.


Course Topics

  • Module 1 – Background
  • Module 2 – Modern Residential Fire Challenges
  • Module 3 – Furnace Tests
  • Module 4 – House Experiments
  • Module 5 – Fire Service Tactical considerations


  • Identify the stages of fire development in the modern fire curve
  • Explain the impact of opening and closing the front door during a residential fire
  • Describe the effects of ventilating near and remote to the seat of the fire
  • Recognize the impact of closed doors on tenability in bedrooms of residential structures during a fire
  • Describe the result of ventilation on tenability
  • Explain the impact of creating new flow paths
  • Recognize the effects of ventilation limited fires on surrounding rooms
  • Apply tactical considerations to a fire scenario in order to predict results of a given fire attack

Learning objectives will be measured by:

  • Quiz

CEU’s Awarded:

  • Learners who complete the course and achieve a score of at least 80% on the quiz will earn 0.2 Continuing Education Units (CEUs).
  • Contact your local jurisdiction for CEU recognition.

Target Audience

  • Firefighters of all experience levels
  • Fire protection engineers
  • Fire researchers
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Time Requirement


Web-Based Modules 2 hours

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