Energy Efficiency

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Ductwork for a Retrofit ERV

Miguel Walker explains the tradeoffs of using existing heating ducts instead of... More

Tough Thermal-Imaging Smartphone

The AGM Glory G1S is an Android smartphone with built-in infrared capability for... More

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A Frosty Heat Loss Puzzler

Why ghosting - the outline of rafters written in frost - isn't always caused by... More

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Calculating House Volume for Blower Door Tests

The only way to accurately measure air changes per hour is to accurately measure... More

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Video: 4 tips for better tankless water heater venting

Learn how to reduce tankless water heater installation cost and improve... More

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How I Got Faster Hot Water

Reducing the time spent waiting for hot water to flow out of a faucet is a matter... More

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Introduction to Whole-House Electricity Monitoring

Allison Bailes recently installed the Emporia Vue whole-house electricity... More

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Versatile Residential ERV

The direct-drive EC motor adjusts speed to maintain flow rates. More

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Smart Airflow Control

An ERV that doesn't need to be connected to central HVAC More

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Upgrading to a User-Friendly Manometer

A home-performance contractor shares his tips and techniques for getting the most... More

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