Blogs
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Testing Window Glass Performance
Two tools that can evaluate and confirm window- and door-glass performance
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Are You Making These Mistakes With Your Thermostat?
Understanding setbacks and thermostat settings will keep you comfortable and allow you to use your heating-and-cooling system efficiently
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Passive House on Piers
The project goals for this house in coastal Maine included minimizing carbon and site impact and maximizing comfort and efficiency
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The Best Technique for Insulating Around Windows
Depending on the situation, there is some latitude in how to seal the gap between the window and rough opening
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Ceiling Air-Sealing
Strategies for creating super-airtight ceiling assemblies
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How to Size an ERV or HRV
Advice in choosing a flow rate for a heat recovery or energy recovery ventilation system
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Revisiting Pipe Insulation
Insulating hot water lines and hydronic heating pipe saves energy and money. It's nice when it looks good, but more important is performance.
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Maine Puts Business at the Core of Weatherization Training
The Weatherization Business Lab aims to grow the next generation of home-efficiency experts
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What Is the Building Leakage Curve?
How a blower-door test can estimate a home's pressure under normal operating conditions
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The Most Neglected Part of HVAC Design
Good HVAC design doesn't start at the beginning—it starts at the end