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Behind the Scenes at the Blower Door Factory: Fan and Manometer Calibration 



Watch this behind the scenes look at Retrotec, where fan and manometer calibration takes place.

Peek behind the curtain at Retrotec, into the calibration process for new and old blower doors and duct testing fans.

Related Resources

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BPA: Building Science Principles Course: A Free Resource for Educators

This introductory course, presented in slideshow format, is designed to be a starting point for those interested in any career in residential energy efficiency. The course provides learners with basic information on how homes work through the lens of building science.

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Weatherization Installer Job Aids and Single-Family Interactive 3D House

Weatherization job aids are step-by-step visual guides created to assist home energy professionals with effective, durable, and safe energy efficiency upgrades.

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Workforce Development Toolkit for the Weatherization Assistance Program

This toolkit provides workforce development information and resources applicable to the Weatherization Assistance Program.