Derin Williams
  • Portland, OR
  • United States
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Derin Williams's Page

Latest Activity

Derin Williams replied to Evan Riter's discussion Making crawlspaces conditioned space
"Jerry,   Why duct seal when the ducts are brought into conditioned space? Maybe to improve air flow to the registers?   Thanks"
Jan 26, 2012
Derin Williams is now a member of Home Energy Pros
Jan 5, 2012

Profile Information

Company
Efficiency Service Group
Professional Certification
BPI Building Analyst/Envelope, PTCS, PATS, SBA
Professional Interests
Tiny Houses

Comment Wall (1 comment)

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At 9:34pm on January 9, 2012, Diane Chojnowski said…

Hi Derin,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo. And add your location on our Member Map!


Thanks!
Diane, HEP Moderator

 
 
 

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

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Hal Skinner replied to Hal Skinner's discussion 'YGRENE' super fund for energy upgrade financing
"Thanks Susan.  It is appreciated."
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Beyond Blower Doors: Zonal Pressure Testing

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2015 Habitat X Summer National Conference at Big Sky Resort

July 21, 2015 to July 23, 2015
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Royce Gleason posted a status
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6 hours ago
Profile IconCristy Kraus, Will Tastad, Royce Gleason and 1 more joined Home Energy Pros
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Susan Davison replied to Hal Skinner's discussion 'YGRENE' super fund for energy upgrade financing
"Hal,   With the above questions, let me first state 'let the buyer beware'. All of…"
9 hours ago
Susan Davison replied to Hal Skinner's discussion 'YGRENE' super fund for energy upgrade financing
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A Proposal for Expanded International Collaboration

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