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
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
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

 
 
 

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.

Latest Activity

Mike Kandel added a discussion to the group Building Performance Institute (BPI)
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BPI's Home Energy Auditing Standard Published as ANSI Standard

The Building Performance Institute, Inc. (BPI) is proud to announce that BPI-1100-T-2014: Home…See More
5 hours ago
Mike Kandel posted a discussion

BPI's Home Energy Auditing Standard Published as ANSI Standard

The Building Performance Institute, Inc. (BPI) is proud to announce that BPI-1100-T-2014: Home…See More
5 hours ago
Hal Skinner posted a discussion
5 hours ago
Todd St.Clair joined allen p tanner's group
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
8 hours ago
Todd St.Clair replied to Jim Falakos's discussion Treat Software in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"How long ago did you buy this, if it was good for 5 months? And how much would you take for this."
8 hours ago
Bud Poll replied to Bud Poll's discussion Basing air exchange on house volume??
"Hi Sean, yes I am struggling with this and that is why I opened the discussion, so a definite…"
10 hours ago
Lynda Wright is now a member of Home Energy Pros
10 hours ago
Sean Lintow Sr replied to Bud Poll's discussion Basing air exchange on house volume??
"Sorry Bud but I think you need to clarify your issues with using volumes to calculate ACH As for…"
21 hours ago

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