The Latest from the Energy Vanguard Blog

Insulation and Global Warming
Posted by Allison Bailes on November 21, 2016
At the North American Passive House Conference in Philadelphia in September, I gave a presentation on the global warming impact of insulation, an issue I've been discussing off and on since Alex Wilson wrote his paper on the topic back in 2010. In my presentation, I covered two different aspects of...
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Stephen Hawking
Posted by Allison Bailes on November 18, 2016
There's big news this week. No, I'm not talking about the delayed opening of ski resorts out West because of the lack of snow. And, believe it or not, it has nothing at all to do with Donald Trump. I'm talking about Stephen Hawking's prediction that we humans have only a thousand years left here on...
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Posted by Allison Bailes on November 14, 2016
It's that time of year when heating systems start coming out of their summer hibernation. (Except maybe in Vermont. Michael Blasnik's Nest data showed that Vermonters are about the last to start heating their homes in Fall.) Then everyone starts looking for their lotion and lip balm. Gaps appear in...
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Posted by Allison Bailes on November 9, 2016
Supply and demand are two different things. When you think of an energy code, say the International Energy Conservation Code (IECC), you probably think of demand, not supply. Conserving energy, after all, means reducing demand. It's related to supply only indirectly. As a result, you might expect...
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Posted by Allison Bailes on November 4, 2016
You can go into just about any introductory physics classroom and you'll see that the students learn the same stuff no matter which school they attend. They study forces and motion, momentum and energy, electrostatics, and a host of other physics topics. They do lab experiments. They observe and...
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Posted by Allison Bailes on October 31, 2016
Lying in bed. Feel like I've run a world record mile. Can't...catch...my...breath. I take the deepest breath I can. The noisy air provides little sustenance for my oxygen-starved lungs.
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Posted by Allison Bailes on October 28, 2016
My website host (Hubspot) had a problem when I published my last article, High Humidity in a Spray Foam Attic, Part 2. If you wanted to comment and were not allowed, that problem has been fixed. I apologize for the inconvenience.
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Posted by Allison Bailes on October 26, 2016
Three weeks ago, I wrote about an attic with spray foam insulation and the interesting humidity pattern we observed in it. We placed data loggers near the ridge and floor of the attic as well as in the living space and outdoors. In that last article, I showed the dew point data for the four...
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Posted by Allison Bailes on October 14, 2016
There's really no end to the fun stuff you find when looking at furnace & air conditioner filters. Here are a few of my favorites for this Fall Friday.
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