Matthew Dahlhausen
  • State College, PA
  • United States
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Latest Activity

Matthew Dahlhausen replied to Mike Rogers's discussion Where do you fall in the "staged" versus "gotta be all at once" discussion?
"The unit will cycle more, which will cause an efficiency drop.  The economic comparison is then the cost of the extra fuel use from cycling, versus the value of delaying the capital expenditure.  Generally the value of delaying is worth…"
Apr 4, 2014
Matthew Dahlhausen replied to Mike Rogers's discussion Where do you fall in the "staged" versus "gotta be all at once" discussion?
"It depends on the capital available, investment lifetime considered, and the state of the mechanical equipment.  The "tunnel through the cost barrier" savings comes from changing to a different mechanical system, e.g. steam boiler to…"
Apr 3, 2014
Matthew Dahlhausen replied to Mike Kandel's discussion Can you solve this month's stumper? in the group Building Performance Institute (BPI)
"The solution to this problem is to prevent warm moist air from contacting a condensing surface.  This is difficult, because it is nearly impossible to create a perfect air barrier – especially one that maintains a seal over time in a…"
Feb 28, 2013
Matthew Dahlhausen joined Building Performance Institute's group
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Building Performance Institute (BPI)

BPI is the nation's premier standards development, quality assurance and credentialing organization for residential energy efficiency retrofit work.See More
Feb 28, 2013
Diane Chojnowski left a comment for Matthew Dahlhausen
"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…"
Feb 27, 2013
Matthew Dahlhausen is now a member of Home Energy Pros
Feb 21, 2013

Profile Information

Company
Penn State University
Professional Certification
BPI
Professional Interests
Deep energy retrofits of residential and commercial buildings. Legitimate green buildings.
Website URL
http://www.buildsci.us/

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At 10:10am on February 27, 2013, Diane Chojnowski said…

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

 
 
 

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Latest Activity

CharlieK posted a discussion

Eco-Cottage Program Applauded By Housing Groups, Suppliers & Lenders

AmeriSus a leading player in the eco-kit home business kicked off a new program on MLK-day which…See More
2 hours ago
Diane Chojnowski posted a discussion

Call for Nominations: Tony Woods Award and Building Performance Hall of Fame

The Building Performance Institute, Inc. (BPI) is seeking nominations for the 2017 Tony Woods Award…See More
3 hours ago
Diane Chojnowski added a discussion to the group 1000 Home Challenge
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January Webinar: Intro to the 1000 Home Challenge

The January Intro to the 1000 Home Challenge webinar will be  Friday, Jan 20 at 10-11:30 AM eastern…See More
3 hours ago
Diane Chojnowski's event was featured
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Introduction to the 1000 Home Challenge Webinar at Eastern Time

January 20, 2017 from 10am to 11:30am
The January Intro to the 1000 Home Challenge webinar will be  Friday, Jan 20 at 10-11:30 AM eastern…See More
3 hours ago
Diane Chojnowski posted an event
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Introduction to the 1000 Home Challenge Webinar at Eastern Time

January 20, 2017 from 10am to 11:30am
The January Intro to the 1000 Home Challenge webinar will be  Friday, Jan 20 at 10-11:30 AM eastern…See More
3 hours ago
Barbara Smith's video was featured

NY State Weatherization Story

The Weatherization Assistance Program (WAP) is an energy efficiency and conservation program administered by the New York State Homes and Community Renewal (...
3 hours ago
Quinn Korzeniecki added a discussion to the group Building Performance Institute (BPI)
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Call for Nominations: Tony Woods Award and Building Performance Hall of Fame

The Building Performance Institute, Inc. (BPI) is seeking nominations for the 2017 Tony Woods Award…See More
4 hours ago
Horace Douglas Hunt, Jr. posted a status
"In the end, isn't it about our #legacy? i haven't left mine yet, have you? #morningthoughts #real"
7 hours ago

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