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The Two Main Reasons Your Ducts Don’t Move Enough Air
Understanding the physics of air movement can lead to better duct systems
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The Top Two Reasons Powered Attic Ventilators Are a Waste of Money
Despite how fervently some people believe in them, powered attic ventilators don’t pass building science muster
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This Heat Pump Problem Is a Surprisingly Common Cause for High Electricity Bills
Sometimes, the cheapest way to save energy is to fix what's not working
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California Study Shows Big Savings in Home Energy Retrofits
In Stockton, California, researchers achieved 35% to 74% savings in four homes
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How to Buy an Energy-Efficient Ceiling Fan
Reading the label helps, and so does avoiding bad advice
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The Great Ventilation Debate, Live at the ACI Conference
Joseph Lstiburek and five members of the ASHRAE 62.2 committee discussed mechanical ventilation in Detroit last week
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What Happens When You Put a Plastic Vapor Barrier in Your Wall?
A look at the physics of humid air and cool surfaces
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Does Open-Cell Spray Foam Really Rot Roofs?
Researchers from Oak Ridge National Lab have said open-cell spray foam is risky — but what did they miss?
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How to Detect an Internet Solar Energy Scam
If it sounds too good to be true, it probably is
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Four Ways Bad Duct Systems Can Lead to Poor Indoor Air Quality
Higher energy bills and lower comfort levels may not be the worst of your problems with faulty ducts