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Sizing Heat Pump Water Heaters
Learn where to find HPWH data, software tools, and worksheets to help determine the right-sized tank for your household usage
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Basement Sealing for Radon Reduction
Measures taken to seal holes in a slab may not be the primary reason radon levels have gone way down
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Frost on Heat Pump Outdoor Units
Learn how the defrost cycle works and how to recognize whether the heat pump is working correctly in that mode
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Pros and Cons of Fireplaces
Is ambiance worth the consequences of burning wood in an airtight house?
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Dehumidifying With Heat Pump Water Heaters
Dehumidification is listed as a selling point for HPWHs but are they actually effective at lowering humidity?
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Renovating an Old Basement
Lessons learned from the demolition, investigation, and reparation of a 60-year-old basement
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Blower Door Testing for Contractors
Beyond measuring a building's airtightness, blower doors and manometers are used for several additional diagnostic tests
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An Avoidable Downside to Heat Pumps
Heat pumps have an Achilles' heel in the form of improper pairing with electric resistance auxiliary heat
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8 Tips for Cooling Down a Hot Second Floor
A first-aid kit of short-term solutions for bringing down the temperature of uncomfortably hot upper floors
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Getting the Right Airflow for an Air Conditioning System
Learn why air velocity matters and how to ensure AC capacity will lower interior temperatures and remove humidity