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Deep-Energy Retrofit of a Centuries-Old Warehouse
A historical commercial building is turned into a live-work space using building-science principles
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The Value and Limits of Manual J
These basic energy models can teach us more about our plans than what heating and cooling loads to expect
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Why Does Hot Water Take So Long?
The reason is the volume of water in the pipe and the solution is to decrease pipe size and length
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The Benefits of a Heat-Pump Water Heater
A case study demonstrating the worth of all-electric water heaters
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Measuring the Efficiency of a Room Dehumidifier
Several ago, I wrote about the confusing world of dehumidifier capacity. That quantity tells you how much water a dehumidifier will produce in a given amount of time. Here in…
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Do Women Need Warmer Temperatures Than Men?
The science says: No. ASHRAE’s thermal comfort standard lists six factors that affect everyone's comfort
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How to Meet Air Leakage Requirements
First time meeting code air leakage requirements? Here’s what you need to know.
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When is Humidity Low Enough to Open Windows?
Dew point is the key metric for determining when outdoor air is less humid than indoor air
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Closed-Cell Spray Foam for Sub-Slab Insulation
The pros and cons of using CCSF under a concrete slab
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Beyond Water Heaters
Water heating is a system, not just an appliance
