I think most of us know of this man, one of the founders of The Energy Conservatory and designers of the Minneapolis Blower Door. I recently had the opportunity to chat with Gary. My intent with the interview is a little different from other interviews that have featured Mr. Nelson. I wanted to ask questions from a practitioner working in the field point of view. Continue reading “Building Science-An Interview with Gary Nelson”
Diagnostic Tools-Blower Doors
This week, I’m going to start a new category of subject matter to discuss, the tools I own and use when conducting energy audits, assessments and performing home diagnostic testing. We are going to start with my number one diagnostic tool, the blower door. Continue reading “Diagnostic Tools-Blower Doors”
Opinion-5 Reasons to Own A Blower Door
By now most of us know what a blower door does and the basics of how they work. All energy auditors and raters own one. A few insulating contractors I know also have purchased their own blower door. As a contractor, does it make sense to invest a sizable amount of money and then take the time to learn how to operate this piece of test equipment. Continue reading “Opinion-5 Reasons to Own A Blower Door”
Energy Audit-Advanced Blower Door Testing-Zonal Pressures
Most of us by now know what a blower door is. A tool to measure the air tightness of a house. I’ve owned my Minneapolis Blower Door since 2009. Many states have adopted mandatory tightness testing on all new construction. In my area, the minimum is three air changes per hour at 50 Pascals (3 ACH50), Continue reading “Energy Audit-Advanced Blower Door Testing-Zonal Pressures”