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Make-up Air in Tight Houses
When homes are well air-sealed, negative pressures and supply air pose unique challenges
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House Size and Air Leakage
The 2021 IECC helps close the large-house loophole
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Make It a Mechanical Room, Not Just a Closet
HVAC equipment is expensive and critical for the health of occupants and buildings, so design the right-sized conditioned space to house it
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Four Ways to Duct a Dehumidifier
From best to pretty good, here are four approaches to ducting for dehumidification
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Heat Pump Electrical Requirements
Understanding the principles and terminology behind heat pump systems is important for sizing and installation
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The Meaning of Rejected Energy
Understanding the relationship between fossil fuels, heat engines, waste heat, and the need for renewable energy
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Passing a Blower-Door Test
Addressing common areas of air leakage goes a long way toward passing mandatory blower-door tests the first time
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Undersized Minisplit Heat Pump
How well does it handle cooling loads during a heat wave?
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Going All Electric in a Cold Climate
Data-supported strategies and systems for transitioning away from fossil fuel and toward all-electric energy
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Detailing a Bonus Space in a High-Performance Home
A room above an unconditioned garage and below a vented attic in a cold climate requires special considerations
