In Episode 10, check out UL FSRI’s Dan Madrzykowski as he explains what “pushing fire” really means: It has been taught that all hose streams can push fire. That is not accurate. Pressure is needed to create the push; therefore, it is stream choice and nozzle movement that … [Read more...]

In Episode 9, check out UL FSRI’s Robin Zevotek as he explains why the flow path and suppression must be considered together: The flow path of the fire and suppression tactics must be thought of together. Knowing how and when to alter the flow path allows for a safer and … [Read more...]

The definitions below are included to help provide context to current articles and discussions on fire dynamics and fire attack.  It should be understood the fire service across the United States often has slightly different meanings for the same word. Additionally, some areas … [Read more...]

“Authors Sean Gray and P.J. Norwood’s book “The Evolving Fireground, Researched-Based Tactics” is a breath of fresh air for firefighters and the like that appreciate an educational trade book that’s current, an easy read, easily understood, and provides comprehensive fact based … [Read more...]

Originally posted at: https://community.fireengineering.com/m/blogpost?id=1219672%3ABlogPost%3A646330 From the start, I’ve been a huge supporter of the Underwriter Laboratories Firefighter Safety Research Institute (UL-FSRI) and the many fire science studies UL and the … [Read more...]

In Episode 8, check out UL FSRI’s Dan Madrzykowski as he explains why firefighters should keep the wind at their back: When entering a structure or initiating fire attack, knowing the wind direction is a critical fireground factor. Winds greater than 5 mph will directly … [Read more...]

As part of the DHS/AFG grant “Study of the Fire Service Training Environment: Safety, Fidelity, and Exposure,” UL FSRI conducted a series of experiments in a concrete live fire training building in an effort to evaluate the fidelity and safety of two training fuels, pallets and … [Read more...]

In Episode 7, check out UL FSRI Advisory Board Member and Division Chief for Montgomery County (MD) Fire & Rescue Service, Charles Bailey, as he explains how heat transfers through turnout gear: One of the most important lessons we as firefighters must understand is the … [Read more...]

In Episode 6, check out UL FSRI Advisory Board Member and Division Chief for Montgomery County (MD) Fire & Rescue Service, Charles Bailey, explains why “nothing showing,” upon arrival means nothing: Upon arrival to a scene, firefighters usually determine the extent and … [Read more...]

In Episode 5, check out UL FSRI Director, Steve Kerber, as he focuses on how fire development changes when a fire becomes ventilation limited: One of the first things every firefighter learns about fire is the fire triangle. Fire needs fuel, heat and oxygen to … [Read more...]

We want to pass on a new (free/no cost) fire training program: From Knowledge to Practice (FKTP) Fire Dynamics Curriculum for you to check out. Check out the FKTP Curriculum at no cost ...and it is all online. Note that lesson plans, prop schematics and additional documents … [Read more...]

In Episode 5, check out UL FSRI Director, Steve Kerber, as he talks about how fire flows from high pressure to low pressure and how ventilation can impact the flow path. When you’re on the fireground, it is important to understand the basic fire dynamic principle that fire flows … [Read more...]

Check out our Understanding the Basics video featuring Robin Zevotek as he discusses the differences between heat release rate vs. temperature and how it applies to today's modern fireground. … [Read more...]

In Episode 3, check out UL FSRI Advisory Board Member and LA County Assistant Chief, Derek Alkonis, as he talks about the constantly evolving fire environment and what we need to do to stay ahead.: Structure fires have changed over time. Forty-plus years ago, structures were … [Read more...]

In Episode 2, check out UL FSRI Advisory Board Member and former Chief of Training for the Cleveland (OH) Fire Department Sean DeCrane as he talks the rules of live-fire training: For more information check out our FEMA/DHS project, Study of the Fire Service Training … [Read more...]