Ethan MacCormick
  • Aurora, NY
  • United States
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Latest Activity

Ethan MacCormick replied to Luis Hernandez's discussion Modeling the apartment upstairs in the group TREAT Software
"Boy, Luis, sorry to see this so late. Curious what you did.  Our general approach would be to model only the surfaces in the apartment  that are adjacent to unconditioned space, so leaving off floors and walls that are adjacent to the…"
Sep 26, 2014
Ethan MacCormick replied to Luis Hernandez's discussion How to model a skylight in the group TREAT Software
"Hi Luis, I'm not sure what the NYSERDA specifics would be, but in basic terms, a skylight is just a window in a sloped roof (typically).  So picking the right frame and glazing characteristics and putting it into a sloped roof should do…"
Sep 26, 2014
Ethan MacCormick replied to Luis Hernandez's discussion Modeling a Townhouse in the group TREAT Software
"Exactly right, Luis. The other unit is conditioned also, so there's negligible energy transfer between them, so the common walls don't provide a heating or cooling load, and there's no reason to enter them in the model. And to…"
Jul 7, 2013
Ethan MacCormick replied to Luis Hernandez's discussion Modeling a Townhouse in the group TREAT Software
"Hi Luis, This is a great question that points to a fundamental tenet of energy modeling: we don't worry about surfaces (walls, floors, etc.) where there's no energy transfer.  We assume that temperatures between adjacent units (or…"
Jul 7, 2013
Ethan MacCormick replied to George Kopf's discussion ASHRAE 62.2.2010 and the $20 app
"Rick Karg, one of the developers of the ResVent app, has always been very generous with his time when enhancing the standard, and in educating the building science community on using it. In fact, he offers a free web-based tool to do the 62.2…"
Jan 17, 2013
Ethan MacCormick left a comment for Carol A. Markell
"Thanks Carol,  If Dave or Bill or Tamasin or Gloria or someone had told me sooner... Looks good!"
Jan 19, 2011
Carol A. Markell left a comment for Ethan MacCormick
"Welcome Ethan, about time!  Carol"
Jan 19, 2011
Ethan MacCormick is now a member of Home Energy Pros
Jan 18, 2011

Profile Information

Company
Performance Systems Development
Website URL
http://www.psdconsulting.com

Comment Wall (2 comments)

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At 7:58am on January 19, 2011, Carol A. Markell said…
Welcome Ethan, about time!  Carol
At 12:34pm on January 18, 2011, Diane Chojnowski said…

Hi Ethan,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos andupcoming 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

 
 
 

Forum Discussions

When is it too windy to use blower door?

Started by Brandon Walton in General Forum. Last reply by Kent Browning on Friday. 10 Replies

Electro Magnetic Fields (EMF)

Started by Barry L NewDelman in General Forum. Last reply by Arnie Katz on Thursday. 2 Replies

Affordable Housing Funding

Started by SUZETT MOFFITT in General Forum. Last reply by Diane Chojnowski on Wednesday. 4 Replies

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Laurie DiDonato updated an event

Hybrid HERS Rater Training September 2017 (NH) at Online/ Classroom in Manchester, NH

September 11, 2017 at 9am to October 6, 2017 at 5pm
EARLY BIRD DISCOUNT: Register by August 15th and get $200 off!This training has been approved by…See More
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Kent Browning replied to Brandon Walton's discussion When is it too windy to use blower door?
"I found this post thru a Google search. I was already a member and have posted a few times. I am a…"
Friday
Home Energy Magazine's video was featured

2017 U.S. Department of Energy Race to Zero Student Design Competition

The U.S. Department of Energy (DOE) Race to Zero Student Design Competition (Race to Zero) inspires collegiate students to become the next generation of buil...
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