Residential ventilation: Eight ways to measure it
1. Exhaust Flow Pan A commercial pan like Energy Conservatory’s Flow Meter captures airflow from exhaust fans. Place it over the grille to measure CFM directly. Pro tip: Good for…
Read story
Home Performance Testing: More than an Energy Audit for Home Improvement Projects
See what home performance is all about! Corbett and John from Green Dream Group demonstrate a comprehensive home performance analysis- which is more than an energy audit. https://youtu.be/bfRK7HpP-rM What Is…
Testing with DucTester 340 and DM32 WiFi
Equipment Overview Model 340 DucTester: A compact and powerful duct testing fan designed for both total leakage and leakage to outdoors testing. DM32 WiFi Gauge: A digital touchscreen manometer with…
QA/QC with Retrotec Software
Data Logger – Excel Auto-Exports The DM‑32 streams live Channel A/B pressure data into Retrotec’s Data Logger software, automatically saving readings in CSV/Excel format. Ideal for archiving test data, generating…
Using the DM32 Digital Gauge with the TEC Exhaust Fan Flow Meter
Watch how easy it is to use the DM32 with TEC’s Exhaust Fan Flow Meter https://youtu.be/QZABEBdOR_4 Step-by-Step Usage Attach Control Cable Connect the DM‑32’s yellow Speed Control output to the…
Retrotec Blower Door Instructional Video
Frame Assembly & Fan Setup Assemble the aluminum frame by snapping together numbered pieces. Mount the calibrated blower fan and insert the correct range plate to match testing conditions. For…
Checking your Gauge
See how you can check your gauge’s calibration against itself and another gauge. Learn a simple way to test positive and negative ports against each other. https://youtu.be/nB7GbaG-aDI How It Works:…
Gauge Measurement Problems
Learn how environmental factors can affect your testing, and how to recognize them. Included are: the moving tube problem; the pinched tube problem; getting water in your tube; and, finally,…
DM32 Smart Gauge Overview
DM32 interface and operation– Running a Retrotec or MN fan– Using Virtual Gauge, GaugeRemote, and Data Logger– Calculating results https://youtu.be/oFZfX-D_gHA Running a Retrotec or MN Fan Physical Controls: The touchscreen…
Achieving code requirements is easy
Key Takeaways Set Clear Testing Targets Building air-tightness targets: ≤ 3 or 5 ACH50 depending on the code. Duct leakage limits: ≤ 8 CFM25 per 100 ft² for total, and ≤ 4 CFM25 per 100 ft² for duct…