Ventilation and Air Quality

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Retrofitting a Heat-Recovery Ventilator

The challenges are finding a good place for the unit and installing the ductwork without butchering interior finishes. More

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Part 2: Choosing a Whole-House Ventilation Strategy

Part 2 of Allison Bailes series on current ventilation standards and how best to... More

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Installing an ERV in a Two-Family Passive House

JLC’s Coastal Connection goes on site in Boston, Mass., where Placetailor is... More

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Humidifying Homes

Too much moisture can be problem, but so can too little. Doug Horgan explains when... More

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Reinventing the Multisplit

VRF technology offers efficient cold-climate heating and cooling for a builder’s... More

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A Builder's Guide to Breathable Indoor Air

The formula for cleaner, healthier indoor air is simple: A tight shell, and... More

Ventilation And Air Quality Instruction

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How to Size an HRV or ERV

Unlike a furnace or air conditioner, oversizing one of these can be a good thing. More

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Retrofitting Forced-Air HVAC With High-MERV Filtration

Allison Bailes explains why you can’t just swap out a cheap fiberglass filter for... More

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Understanding Filter Ratings: MERV, FPR, and MPR

Most discussions about filter efficiency refer to only one rating scale:  Minimum... More

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Bring Ventilation Ductwork Inside Conditioned Space
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Will Balanced Ventilation Be Required by Code?
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