Recent Articles
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Designing Return Filter Grille Boxes
The key is having enough space to minimize pressure drop
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Understanding Manual J Occupant Loads
How many people? Where and when do they get counted? How much do they contribute?
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The Consequences of Keeping Your Home Really Cold in Summer
Setting the AC thermostat really low can cost you more than just higher electricity bills
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Ten Years of Building Science Summer Camp
Highlights from my experience with the Westford Symposium on Building Science
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Why Air Conditioning Vents Sweat
There's a simple answer and multiple reasons
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The Origin of That Humidity and Health Factors Chart
It's called the Sterling chart and relates negative health factors to relative humidity
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Ducted Minisplits in My Conditioned Attic (Part 2)
设计有效ve ducts for low-static minisplit air handlers
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Ducted Minisplits in My Conditioned Attic (Part 1)
Calculating the loads and sizing the system
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Understanding Filter Ratings: MERV, FPR, and MPR
When you want your HVAC system to filter for good indoor air quality, you need to know about the three main filter rating systems
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HVAC Systems and the Spread of Coronavirus
Filtration and the movement of air through a building both matter
