Cold-Climate Air Source Heat Pumps

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Cold-Climate Air Source Heat Pumps

 High-efficiency technologies like air source heat pumps (ASHPs) have significant potential to improve space-heating efficiency and reduce energy costs for houses in cold climates. ASHP technology has been available for many years, but until ...

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Monitoring Results for the Factor 9 Home

Author: Rob Dumont
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BPI CE
September 03, 2010

Canadian building scientists and a family of four set out to build a home that uses nine times less energy than the average - and half the water. [continue reading]

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Guide to Regional Energy Efficiency Standards

Author: Harvey Sachs
free CONTENT
May 03, 2010

Enlarge Image> On October 13, 2009, the Air-Conditioning, Heating and Refrigeration Institute (AHRI) signed an agreement with environmental advocates and other groups, notably the California Energy Commission and leading utilities. This agreement on regional standards for ... [continue reading]

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ECM Efficiency

Author: Kohta Ueno
premium CONTENT
May 03, 2010

Electrically Commutated Motors (ECM) in air-handler fans promise improved efficiency. But does improved technology necessarily mean efficient HVAC systems? [continue reading]

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Weatherization Ventilation

Author: Don Stevens
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March 01, 2010

The mantra of responsible new home building has been make it tight and ventilate right. Works for existing homes too. [continue reading]

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Tree Shading

premium CONTENT
January 08, 2010

The relationship between tree shading and summertime home energy consumption has long been a topic of interest, and has been the subject of many simulations and small-scale studies. A recent study, led by Geoffrey Donovan, ... [continue reading]

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Sizing Air Conditioners

premium CONTENT
January 07, 2010

A mountain of data leads to an unusual conclusion - sometimes bigger is not so bad. [continue reading]

Redefining Home Performance in the 21stCentury

HPC

Redefining Home Performance in the 21stCentury

Today, the Home Performance Coalition (HPC) calls on policymakers, industry leaders, energy program managers and contractors to redefine home energy ...

Zero-Energy Homes Are Ready for Mainstream Markets

Laurie Guevara-Stone

Zero-Energy Homes Are Ready for Mainstream Markets

Zero-energy (ZE) homes—efficient homes that produce or procure as much renewable energy as they consume over the course ...

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