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Naturally Circulating Hot Water System
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Steve Greenberg is a facilities energy management engineer at Lawrence Berkeley National Laboratory and a technical editor at Home Energy. Q: I have been having a discussion with a fellow worker concerning our house heating ... [continue reading]

Kansas City's Water Heaters
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I work for Neighborhood and Community Services in Kansas City, Missouri, in the Minor Home Repair and Weatherization program. I have worked in weatherization since 1986, and performed energy audits prior to that in Fairbanks, Alaska. ... [continue reading]

The Spanish Sun
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With a name nearly synonymous with sun, Spain has become one of the European Union’s top vacation destinations. The tourism industry has taken a liking to Spain’s fair-weather resources, but with ... [continue reading]

Sustainable Sites Intitiative
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The Sustainable Sites Initiative takes green building standards outside. [continue reading]

Drain Water Heat Recovery Devices
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Drain water heat recovery (DWHR) devices are little-known but effective means to save hot water energy and homeowner dollars. [continue reading]

Bold New Toilet Adventure
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We had to take the plunge, so to speak, so as not to have to plunge so much. [continue reading]



Scott Donnelly
GreenExpo365 Host
Keeping a home cool in the summer yet warm in the winter is a tough request. The choice of quantity ...


Doug Garrett
Code Conflict Between 2012 IRC and 2012 IECC
It has come to my attention that there may be a building science-based conflict in the language of the 2012 International ...


























