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Video Library

Explore our library of educational and informative videos hosted on our official YouTube channel.

This page features a selection of our most popular content, including Video QuickGuides—fast, practical walkthroughs to help you get the most out of your tools—and episodes from The FlowLab, our podcast focused on building science, HVAC innovations, and real-world testing insights. Whether you’re looking to learn, troubleshoot, or stay updated on industry trends, you’ll find it here.

View All Videos on our YouTube Channel:

Retrotec YouTube Channel | @RetrotecEnergy

Video QuickGuides

This video shows the basic functions of the DM32X including how to connect tubing, power on and off, running fans, and how use the graphing feature. 13:46
YouTube Video UEw2Mnp2NFNITDA2b252OE1ZWU9YckVLMmtCaUtHSkYxRS41NkI0NEY2RDEwNTU3Q0M2

DM32X Tutorial

This video is a brief tutorial on setting up and operating a blower door in residetial properties. This video can also be found on the DM32X in the resources app. 11:12
YouTube Video UEw2Mnp2NFNITDA2b252OE1ZWU9YckVLMmtCaUtHSkYxRS4xMkVGQjNCMUM1N0RFNEUx

Blower Door QuickGuide

This video quickguide is a quick tutorial on setting up your residential DucTester with the DM32X manometer. This video can also be found on the DM32X gauge in the resources app. 8:36
YouTube Video UEw2Mnp2NFNITDA2b252OE1ZWU9YckVLMmtCaUtHSkYxRS4yODlGNEE0NkRGMEEzMEQy

Residential DucTester QuickGuide with DM32X

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The Flow Lab Podcast

The basics to help you understand homes as a system. Download our FREE ebook and start solving problems like a pro. 👉 https://bit.ly/flowlab-ebook -------------------------------- In this episode of The Flow Lab Podcast, hosts Ben Walker and Sam Myers sit down with Denali Jones, Technical Director at the Air Barrier Association of America (ABAA), to talk about how large buildings are tested for air tightness and where things often go wrong.Denali walks us through his journey from starting out at Retrotec to leading airtightness training across the country. He explains what makes these tests challenging, how contractors can avoid common mistakes, and why having the right training and tools really matters. Whether you work in building science, test commercial properties, or just want to understand how building air leaks affect energy use and comfort, this episode breaks it all down from spotting hidden gaps to troubleshooting test-day problems like faulty fans or even elevator issues. What You’ll Learn: Why some parts of new and old buildings are often forgotten and how that affects test results. How Denali helped create the first nationally recognized training for testing large buildings. What to check when test results don’t make sense like unplugged equipment or bad setup. How testing two floors at a time helps deal with tall buildings and air pressure issues. What makes this new standard better than the old ones and how it helps testers and builders do the job right. In This Episode: [00:00] - Denali’s background and how he got started [04:50] - First testing jobs and early lessons [08:00] - Where buildings leak and why [13:08] - Testing tall buildings and working with city codes [19:28] - How the ABAA training program came together [26:49] - The most common mistakes testers make [33:52] - What’s next for airtightness testing [37:37] - Why it’s better to bring in testers early [44:44] - Tips for using fans and setting up safely [50:12] - Real-world testing results and future research plans Connect with Denali Jones: LinkedIn: https://www.linkedin.com/in/denali-jones-4b6b8375/ Connect with Company: Website: https://airbarrier.org/ LinkedIn: https://www.linkedin.com/in/air-barrier-association/ Instagram: https://www.instagram.com/abaa_airbarrierassociation/ Facebook: https://web.facebook.com/airbarrierassociation/?_rdc=1&_rdr# X (twitter): https://x.com/ABAA_AirBarrier Follow Hosts: Ben Walker (Co-CEO, Retrotec) LinkedIn: https://www.linkedin.com/in/ben-walker-4a05901/ Sam Myers (Building Science Specialist & Trainer) LinkedIn: https://www.linkedin.com/in/sam-myers-ms-a9a4a546/ Website: https://retrotec.com/ Facebook: https://www.facebook.com/retrotec/ Instagram: https://www.instagram.com/retrotec/ YouTube: https://www.youtube.com/@RetrotecEnergy/ Listen on: Spotify: https://open.spotify.com/show/3xMDAhIttUTHWK41DH7KhB Don’t forget to subscribe for more episodes on HVAC innovations, sales strategies, and building performance. Share your thoughts in the comments below! #HVAC #BuildingScience #Airtightness #CommercialTesting #HVACEducation #E3158 #RetroTech #AirLeakage #BuildingPerformance #ABA #Certification 52:10
YouTube Video UEw2Mnp2NFNITDA2clpXeDNzUXh4eHdrYzFIZXN4bzEwbS45ODRDNTg0QjA4NkFBNkQy

How Large Buildings Fail Air Tightness Tests for Contractors to Fix with ASTM E3158 – Denali Jones

The basics to help you understand homes as a system. Download our FREE ebook and start solving problems like a pro. 👉 https://bit.ly/flowlab-ebook -------------------------------- In this episode of The Flow Lab Podcast, hosts Ben Walker and Sam Myers are joined by Barry Cope, Managing Director of ATTMA (Air Tightness Testing and Measurement Association), affectionately known as "Mr. Blower Door" in the UK. Barry discusses how ATTMA grew from a small group of enthusiasts into a global leader in blower door testing, certification, and industry training. He shares groundbreaking insights into data-driven building performance, the UK’s fully integrated Lodgement system, and ATTMA’s cutting-edge training house built inside a warehouse. With humor and unmatched expertise, Barry highlights the challenges of international code compliance, quality assurance, and the vision for bringing proven UK methodologies to North America. Expect to Learn Discover how a four-person trade association grew to dominate 85% of the UK’s blower door testing market with over 180,000 tests annually. Get inspired by ATTMA’s full-scale training house inside a 10,000 sq ft warehouse, designed for high-pressure, real-world simulations. Explore the chaos of U.S. state-by-state code amendments versus the streamlined approach in the UK and how that affects adoption and testing quality. Learn how ATTMA’s Lodgement system helps governments track high-rise buildings, manage compliance, and even respond to national emergencies like Grenfell. Hear Barry’s journey from field tester to managing director, and how his multidisciplinary background shaped the future of UK air tightness testing. In Today’s Episode [00:00] - How ATTMA Helped Identify High-Rise Risks After Grenfell [01:13] - Introduction and Barry’s Role in the UK Blower Door Market [02:07] - What is ATTMA and How It Evolved [04:36] - Barry’s Entry into the Industry and ATTMA’s Transformation [06:25] - Building a Full-Scale Training House Inside a Warehouse [09:22] - Real-World Pressure Testing and Training Innovation [11:17] - Bringing the Lodgment System to the U.S. [16:00] - The Challenges of Code Fragmentation in the U.S. [21:37] - ABA’s Expansion and ISO Certification Progress [28:05] - Who Has Access to UK Building Test Data [34:18] - Air Tightness Metrics: Volume vs. Surface Area [38:10] - Unique Global Practices in Building Science [47:42] - Barry’s Origin Story in Blower Door Testing [53:44] - The Value of Global Collaboration in Building Performance [57:46] - Final Reflections and Community Appreciation Connect with Barry Cope: LinkedIn: https://www.linkedin.com/in/barry-cope-77340935/ Connect with Company: Website: https://www.bcta.group/attma/ Instagram: https://www.instagram.com/attmauk/ Follow Hosts: Ben Walker (Co-CEO, Retrotec) LinkedIn: https://www.linkedin.com/in/ben-walker-4a05901/ Sam Myers (Building Science Specialist & Trainer) LinkedIn: https://www.linkedin.com/in/sam-myers-ms-a9a4a546/ Website: https://retrotec.com/ Facebook: https://www.facebook.com/retrotec/ Instagram: https://www.instagram.com/retrotec/ YouTube: https://www.youtube.com/@RetrotecEnergy/ Listen on: Spotify: https://open.spotify.com/show/3xMDAhIttUTHWK41DH7KhB Don’t forget to subscribe for more episodes on HVAC innovations, sales strategies, and building performance. Share your thoughts in the comments below! #AirTightness #HVAC #BlowerDoorTesting #BuildingScience #EnergyEfficiency #UKConstruction #HVACEducation #TrainingInnovation #BuildingPerformance 58:14
YouTube Video UEw2Mnp2NFNITDA2clpXeDNzUXh4eHdrYzFIZXN4bzEwbS5GNjNDRDREMDQxOThCMDQ2

How ATTMA Revolutionized Airtightness Testing for Building Experts Using Lodgment Systems Barry Cope

The basics to help you understand homes as a system. Download our FREE ebook and start solving problems like a pro. 👉 https://bit.ly/flowlab-ebook In this episode of The Flow Lab Podcast, hosts Ben Walker, Co-CEO of RetroTec and Sam Myers, building science specialist and RetroTec trainer, sit down with Kevin Hart, Founder and CEO of HavenIAQ, a company focused on transforming the way we monitor and control indoor air quality (IAQ). From his roots as an electrician in the trades to pioneering the first wearable IAQ monitor, Kevin shares his journey of innovation, challenges faced in the industry, and his insights into solving air quality issues in homes and workplaces. Expect to Learn: How invisible air quality issues impact health and comfort in indoor environments, with a focus on tradespeople and homeowners alike. From spotting problems on job sites to creating solutions for air quality measurement and control. Challenges with early sensors, the breakthrough that led to portable devices, and the shift to whole-home IAQ solutions. How modern HVAC systems are evolving to intelligently manage ventilation and air quality based on real-time data and environmental factors. Navigating the complexities of IAQ products like UV lights and ozone generators and why they might not be the right fix. How Haven is shaping the next generation of smart IAQ products, from room monitors to advanced filtration and ventilation solutions. In Today’s Episode: [00:00] - Introduction to the Episode and Guest [03:30] - Kevin’s Transition from Electrician to Air Quality Innovator [07:00] - The Challenges of Early IAQ Sensors and the Need for Affordable Solutions [10:45] - The Move to Whole-Home Air Quality Monitoring [15:30] - The Importance of Smart Ventilation in Modern HVAC Systems [20:00] - The Risks of Overhyped IAQ Products: Ozone Generators and UV Lights [25:15] - The Role of Professionals in Solving IAQ Issues [30:00] - Exploring the New Room Monitor and Its Impact on Homes [35:20] - How the IAQ Industry is Evolving and the Need for Better Education and Training [40:00] - Final Thoughts and Future Innovations in IAQ Connect with Kevin Hart: LinkedIn: https://www.linkedin.com/in/kevinrhart/ Instagram: https://www.instagram.com/kevinhartthecanadian/ Facebook: https://www.facebook.com/kevinrhart Connect with Company: Website: https://haveniaq.com/ Instagram: https://www.instagram.com/haven_tzoa/ Facebook: https://www.facebook.com/haven.tzoa Follow Hosts: Ben Walker (Co-CEO, Retrotec) LinkedIn: https://www.linkedin.com/in/ben-walker-4a05901/ Sam Myers (Building Science Specialist & Trainer) LinkedIn: https://www.linkedin.com/in/sam-myers-ms-a9a4a546/ Company Socials: Website: https://retrotec.com/ Facebook: https://www.facebook.com/retrotec/ Instagram: https://www.instagram.com/retrotec/ YouTube: https://www.youtube.com/@RetrotecEnergy/ Listen on: Spotify: https://open.spotify.com/show/3xMDAhIttUTHWK41DH7KhB Don’t forget to subscribe for more episodes on HVAC innovations, sales strategies, and building performance. Share your thoughts in the comments below! #HVAC #SalesTraining #DuctSealing #BuildingPerformance #HomeComfort #HVACEducation #AirflowScience 55:08
YouTube Video UEw2Mnp2NFNITDA2clpXeDNzUXh4eHdrYzFIZXN4bzEwbS45NDk1REZENzhEMzU5MDQz

How Smart Sensors Are Replacing IAQ Gimmicks for HVAC Experts to Rebuild Customer Trust – Kevin Hart

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Products

Learn how to run a blower door air leakage test in a residential house. 8:11
YouTube Video UEw2Mnp2NFNITDA2clRGbVY4d09XWlRLdG8zVldxTlJLWC41Mzk2QTAxMTkzNDk4MDhF

Retrotec Blower Door Instructional Video

Retrotec's 300x DucTester includes even more improvements to the residential duct testing system. Mount your DM32 WiFi Gauge directly onto the shell for easy accessibility. A new foot design allows for a secure, sturdy base. See more at www.retrotec.com 2:25
YouTube Video UEw2Mnp2NFNITDA2clRGbVY4d09XWlRLdG8zVldxTlJLWC4yODlGNEE0NkRGMEEzMEQy

Introducing the Retrotec 300x DucTester

Introducing the 400x, Retrotec's Commercial Duct Tester. Lightweight and handheld, this unit is s tru industry gam changer. Measure duct leakage in commercial systems up to 295 CFM at 8 inches Water Column (in WC). Learn more at www.retrotec.com. 2:31
YouTube Video UEw2Mnp2NFNITDA2clRGbVY4d09XWlRLdG8zVldxTlJLWC4wMTcyMDhGQUE4NTIzM0Y5

Retrotec Commercial Duct Tester – Model 400x

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Webinars

Sam Myers demonstrates how to uncover hidden air leaks using the Retrotec blower door paired with supportive diagnostic tools. You will see how fog machines reveal airflow patterns, how high resolution manometers provide precise pressure insights, and how thermal imaging cameras expose temperature differences that point directly to leakage paths. Together, these instruments create a clear, practical workflow for identifying weaknesses in the building enclosure. This video is designed for professionals who want reliable methods for diagnosing air leakage in homes and buildings. Sam shows real examples, explains how each tool contributes to the overall picture, and offers guidance that helps you navigate even complex structures with confidence. Subscribe for more building performance training and hands-on demonstrations. 59:45
YouTube Video UEw2Mnp2NFNITDA2b01aTm5Wd1JxenA0eDUwcDcwaWYzZy5BRDg1NUY1OTY2QzgzOEM0

Blower Door 201: Exposing Air Leaks in Building Enclosures

This is a recorded webinar that answers the "what?, why?, and how?" of airtightness testing in building enclosures. Sam Myers spends an hour to talk about the basics of testing both new and existing homes. If you are new to blower door testing, this is a great webinar to get you started. 1:0:33
YouTube Video UEw2Mnp2NFNITDA2b01aTm5Wd1JxenA0eDUwcDcwaWYzZy42NEZDNTU0RTRENDUzRjMz

Blower Door 101

In this webinar, Sam covers some new updates to the DM32X, introduces the AirTracer fog machine, and demos our new Multi Probes. 29:46
YouTube Video UEw2Mnp2NFNITDA2b01aTm5Wd1JxenA0eDUwcDcwaWYzZy5ENEEyOTIwNkY4NzFGMkQ2

The Latest Tools from Retrotec (Nov. 2024)

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Technical Tuesdays

Introducing Technial Tuesdays! In this first episode, Sam will show you the easiest way to install our 300x DucTester fan into the blower door cloth so that it can be used to conduct air tightness tests on small/tight building enclosures. 1:07
YouTube Video UEw2Mnp2NFNITDA2cVpfRWdubjVtdGNkRWgtcFpKbVZ5LS41NkI0NEY2RDEwNTU3Q0M2

Technical Tuesdays Ep.1 – Installing the 300x Fan into the Blower Door Cloth

When running a blower door test with the B4, B2, or B1 range setting, its important to make sure everything is set up correctly. We explain why in this week's Technical Tuesday. 1:08
YouTube Video UEw2Mnp2NFNITDA2cVpfRWdubjVtdGNkRWgtcFpKbVZ5LS4yODlGNEE0NkRGMEEzMEQy

Technical Tuesdays Ep. 2 – Correct Range Configuration

Did you know your DM32 can hold your reading on the screen after you turn off the fan? Learn how do use it on this episode of Technical Tuesdays. 1:36
YouTube Video UEw2Mnp2NFNITDA2cVpfRWdubjVtdGNkRWgtcFpKbVZ5LS4wMTcyMDhGQUE4NTIzM0Y5

Technical Tuesdays Ep. 3 – DM32 Hold Feature

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