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 Forum
Jan 18, 2011

Profile Information

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

Comment Wall (2 comments)

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At 10:58am on January 19, 2011, Carol A. Markell said…
Welcome Ethan, about time!  Carol
At 3:34pm 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

Mini split air conditioners and ceiling fans

Started by Beverly Lerch in General Forum. Last reply by Daniel Baur-McGuire on Monday. 4 Replies

DIY Filter Solution for an Evaporative Cooler, anyone?

Started by Leslie Jackson in HVAC. Last reply by Daniel Baur-McGuire on Monday. 6 Replies

VERY TIGHT HOME WITH OVER SIZED AC

Started by Jerry Needham in BPI. Last reply by Tim O'Brien on Monday. 5 Replies

Apply now for the Jon Siemen Memorial Scholarship!

Started by Diane Chojnowski in General Forum. Last reply by Quinn Korzeniecki Aug 9. 1 Reply

Latest Activity

Brian Robinson replied to Dav Camras's discussion Adding blown insulation to poorly installed batts?
"YES, YES, & YES!!! Bat droppings, mouse droppings, dead mice, nuts, seeds, acorns, lack of…"
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The Importance of keeping Professionally Trained Gas Line Installation Technicians happy and loving their jobs!

Our company is very much a family to us, we strive to bring in and develop great people into great…See More
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Franco Oyuela commented on Shawn Weeks's blog post How Homeowners Can Keep Electricity Costs Down in Summer Months
"Cutting back on air conditioning is also good for the environment because it reduces carbon…"
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Franco Oyuela commented on John White's blog post Top Reasons to Consider Seasonal HVAC Maintenance
"They say an ounce of prevention is worth a pound of cure, and when it comes to HVAC units, this…"
yesterday
Diane Chojnowski's video was featured

1950s Home Retrofit to Super Efficient Passive House - Urban Green Building

This 1950s Montreal house was retrofitted to become a super efficient passive house by adding a 16 inch thick layer of cellulose insulation to the exterior. Maison Ozalée's builder, Richard Price from Construction Le Tournesol, also used triple…
yesterday
Diane Chojnowski posted a video

1950s Home Retrofit to Super Efficient Passive House - Urban Green Building

This 1950s Montreal house was retrofitted to become a super efficient passive house by adding a 16 inch thick layer of cellulose insulation to the exterior. ...
yesterday
Profile IconSolarBK, Jessica Jankowski, John Scott and 2 more joined Home Energy Pros Forum
yesterday
Daniel Baur-McGuire replied to Beverly Lerch's discussion Mini split air conditioners and ceiling fans
"Running a ceiling fan actually heats up air. Allison Bailes has some great articles on it.  I…"
Monday
Daniel Baur-McGuire replied to Leslie Jackson's discussion DIY Filter Solution for an Evaporative Cooler, anyone?
"Where are the supply runs located? Look to make sure supply runs are sealed. I would second having…"
Monday
Tim O'Brien replied to Jerry Needham's discussion VERY TIGHT HOME WITH OVER SIZED AC
"New build may not have been "dry" before finished and occupied. Residual moisture from…"
Monday
Daniel Baur-McGuire replied to Jerry Needham's discussion VERY TIGHT HOME WITH OVER SIZED AC
"Oversized A/C systems wont pull out enough moisture from the conditioned air. I would check to make…"
Monday
Efficiency First California's blog post was featured
Monday
Jediah Krajcik is now a member of Home Energy Pros Forum
Monday
Laurie DiDonato posted a blog post

HERS Rater Training Discount ($200) Ends August 20th!

Online: September 17-28th (Times TBA)Classroom: October 1-5th in Manchester, NHFull fee: $2595…See More
Monday
Profile IconNorthWest AeroBarrier and david beckwith joined Home Energy Pros Forum
Friday
John White posted a blog post
Friday
Efficiency First California posted a blog post
Aug 10

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