Duct System
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The Manual J Dilemma
It’s hard to get a contractor to provide an accurate heat-loss or heat-gain calculation
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Attaching Ducts to a Heat-Pump Water Heater
If you install this type of water heater in a small room, you’ll need to provide ductwork
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My Top 10 Building Science and Energy Efficiency Ideas of 2015
A year-end review of the articles and ideas that made me think
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How to Move Air Quietly Through a Duct System
David Hill shared the secrets of good air flow at the 2015 Building Science Summer Camp
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How Worried Should You Be About Asbestos in Older Homes?
From duct tape to pipe wrap to vermiculite insulation, older homes can contain a lot of asbestos
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The Achilles’ Heel of Zoned Duct Systems
The way that many zoned duct systems handle excess air can create a few problems
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Is It OK to Close Air Conditioner Vents in Unused Rooms?
In most cases, the answer is no
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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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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
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All About Furnaces and Duct Systems
Most forced-air heating systems are still poorly designed and installed
