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Where Does the Air Come From?
Are the various registers and diffusers in your home bringing in outdoor air or recirculating indoor air?
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Another North American Magic Box
Like the CERV, the new Minotair Boreal is a balanced ventilation system with a built-in air-source heat pump
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A Backyard Test of Liquid-Applied Flashings
Water sprayed from a garden hose won’t cause leaks — but standing water will
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Rethinking Durability
Lessons learned from a visit to a Roman aqueduct
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Ductless Minisplits May Not Be As Efficient As We Thought
New England researchers find that minisplits have lower air flow rates and lower COPs than expected
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Reassessing Passive Solar Design Principles
Which design principles from the 1970s are worth retaining, and which should be discarded?
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Naming Building Parts is Tricky
A guide for homeowners who sometimes forget the names of building components
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Air Leakage Through Spray Polyurethane Foam
How thick does a layer of spray foam insulation has to be to qualify as an air barrier?
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Quality Issues With Brick Buildings
Why has the quality of brick building design and construction declined so steeply in the last 100 years?
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Flash-and-Batt Insulation
Spray foam between the studs can reduce air leaks, but a continuous layer of exterior rigid foam makes more sense than flash-and-batt