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Blower Door Test

Matt Risinger · 103.6K views · 2016-06-24 · 5:35

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Overview

Matt Risinger demonstrates a blower door test on a house, using a fan to measure air leakage and find where air gets in and out. It shows how the test reveals the quality of the build.

On Hacker News

HN recommends it as a good look at how blower door tests measure a home's energy efficiency and expose cut corners.

Recommended by 2 HN people across 2 months · HN mentions 2017–2023

Topics

Power grid, heating & buildingsCivil engineering & construction
Search by tags
blower door testair leakagebuilding sciencehome constructioninsulation

What people said

throw0101a · 2023-07 · Recommendation

> You’re describing my situation. How do you de-leakify a house? Do a blower door test and see where the air is coming in/out: * [LINK] * [VIDEO] * [LINK] Then plug the holes.

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FidelCashflow · 2017-09 · Recommendation

A blower door test is a great measure of a homes energy efficiency and it's quite cheap to have done. Not sure if YT links are OK but check out Matt Risinger Blower Door Test [VIDEO]

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berjin · 2022-12 · Reference

The idea is that you don't rely on the process but measure the outcome with a device like this blower door tester. Builders are notorious for cutting corners with insulation and sealing air since it's not that obvious to the naked eye. The testing device reveals any cut corners. [VIDEO]

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Sources

Video by Matt Risinger, played through YouTube.

Data and selection notes

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HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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