Ductwork

JLC Field Guide: Ductwork

Leaky ducts waste energy and can create room-to-room pressure imbalances that cause comfort problems, higher energy costs and even moisture problems within the building assembly.

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Quality Control for Ductwork

If you don't test ducts for air leakage, you can't be sure that a new HVAC system... More

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Perfection is Possible: Zero-Leak Ducts

Home performance contractor Mike MacFarland explains how to win gold with... More

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Pressure-Testing Ductwork

Everyone talks about the importance of sealed ductwork, but the only way to be... More

Ductwork That Works

Air distribution is the weak link in many heating and cooling systems. Good... More

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Heat Pumps in the Age of Electrification

For electrification to succeed, we need to design, install, and maintain heat... 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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Is Negative Pressure Causing a Problem in Your Home?

In order for air to move across a building enclosure, there needs to be a pressure... More

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Ductwork Instruction

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My Low Pressure-Drop, MERV-13 Filters

With indoor air quality on everyone's minds these days, installing better filters... More

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Duct Sizing
Tags: Ductwork, HVAC
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Commissioning a Ventilation System

Commissioning is not a word we hear much in residential construction, but it's a... More

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Panned Bays

Is it OK to use a joist bay for a return-air plenum in an HVAC system? 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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