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How Well Do You Understand Psychrometrics?
Test your knowledge of the science of moist air and how it behaves under different environmental conditions
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Addendum to Continuous Insulation Series
This update sheds light on ICC processes and how they can impact the reading of codes, plus how to satisfy R-value requirements using wall cavity insulation only
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Hot Water System Retrofit
A DIY engineered hot water system uses a hybrid water heater in heat pump–only mode with a high-efficiency boiler and indirect heater
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Sizing a Heat Pump System for Cooling
Remember this rule of thumb: 5 tons is never the answer
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Open-Loop vs. Closed-Loop Ground Source Heat Pumps
Some basics on the two types of GSHP systems and cautionary advice against a side-by-side comparison
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Continuous Insulation, Part 1
A look at the 2021 IRC prescriptive path to continuous insulation and its benefits
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Hotels Have a Humidity Problem
One book tour, 13 nights, 8 hotels and a lot of data on dew point temperature, plus the answer to the question of why hotels are so cold
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Home Electricity Monitoring
A year's worth of data is informative for learning how you use energy, which shines the light on ways to economize. Here are some easy-to-adopt home-energy-use monitoring tools.
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The Easy Way to Switch to a Heat Pump
If you have an air conditioner and a furnace, you have the potential for a dual-fuel heating and cooling system
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Preparing an Old Home for Electrification, Part 2
Important preliminary steps to take when turning your home all-electric
