Jim Gunshinan's Blog – May 2013 Archive (2)

Change is Hard—How Do You Get People to Accept It?

Changing one’s daily routine and making big decisions about money is hard. When a home performance contractor asks a customer to consider an audit, they are asking a lot. Besides the cost of the audit and any retrofit measures the homeowner chooses to pay for, which is probably the biggest challenge, there is also the inconvenience. The audit and retrofit may require the homeowner to take time off from work. Having workers climb in and out of the attic, under the crawlspace, and drill holes…

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Added by Jim Gunshinan on May 28, 2013 at 5:37pm — No Comments

The Universe Is Made of Stories

The late poet and political activist Muriel Rukeyser famously said, The Universe is made of stories, not of atoms. It’s not just words that make up stories. A scientific equation is a story, and so is getting up from my seat and stretching—it’s the story of back care for an editor. We can tell a story with the expression on our faces. What does it tell you when a loved one rolls her eyes at you, or blows you a kiss? How do you feel when a stranger winks at you? Flips you the bird? That last…

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Added by Jim Gunshinan on May 17, 2013 at 2:30pm — No Comments

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David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Static pressure drop through a straight length of pipe is a function of friction rate, and friction…"
4 hours ago
Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Apparently the air passing over the PVC creates a strong static field that in turn impedes air flow."
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David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Why would you think PVC has high resistance?"
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Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Thanks David - I was going to look at PVC for the HRV but was cautioned against it, not because of…"
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David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Great post, Sean. I agree that screws are wise when joining metal ducts, but its also true that…"
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David Butler posted a discussion

Welcome Home Performance Forum Members (formerly RESNET BPI - Energy Audit and Home Performance)

Last month the Home Performance Forum merged with Home Energy Pros, now under the Home Performance…See More
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Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Various studies have indicated very little air flow along surface of duct (for ventilation - have…"
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Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"Hi Don. We have never considered screws as impeding airflow, but I can see how in some ducts (e.g.…"
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