John Porterfield
  • Male
  • Oak Park, IL
  • United States
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John Porterfield's Discussions

A Spot for Tech Questions (Spot! Here Spot!)

Started this discussion. Last reply by Diane Chojnowski Oct 17, 2012. 1 Reply

My firm provides post-installation inspections and owners representative services - independent guidance during installation similar to independent construction manager.  In these (of many) roles we…Continue

 

John Porterfield's Page

Latest Activity

Daniel Baur-McGuire liked John Porterfield's discussion Systematic Study of Retrofit Practices
Oct 13, 2016
John Porterfield replied to Luis Hernandez's discussion I am searching for study material
"Luis,  CEE1 published a 62 page Specification of Energy-Efficient Installation and Maintenance Practices for Residential HVAC Systems, a wonderful thorough illustrated guide, specific, concise and thorough though not in…"
Oct 15, 2015
John Porterfield replied to John Porterfield's discussion Now for Something Different in the group HVAC
"I removed image placed with Dec 14 reply and hope that the image attached here can be viewed."
Jan 12, 2015
John Porterfield's discussion was featured

Now for Something Different

Now that my wife and I are involved in BPI training and plan to conduct field test at our residence, the work scope for integrated HVAC has become more involved.   We'd like to use our efficient tankless boiler AND have old style equipment remain functional for use as a BPI field test site.We're looking for an HVAC installer who has thoroughly mastered combined heating w/ air/water option.I have also posted at Heating Help dot com > search Therm_lag (me) and scroll to Integrated…See More
Jan 6, 2015
John Porterfield replied to John Porterfield's discussion Now for Something Different in the group HVAC
"Well, 2 yrs later (though none the wiser!) system now functioning captures most of the intent of concept described above.  See photo identifying the set-up I'm monitoring (hurry!) mid-Nov to early Jan, before numerous insulation defects…"
Dec 14, 2014
John Porterfield replied to Dave Robinson's discussion Can We PLEASE Stop Calling Them “Ductless” in the group 1000 Home Challenge
"Any update on this work?  Seems manufacturers would provide an indoor coil that would accommodate placement in an air handler, trunk duct, or in place of customary A coil.  I've looked but not found so if I've missed, please…"
Oct 22, 2014
John Porterfield replied to Johnny Ritzo's discussion Selecting a Water Heater
"The American Council for Energy Efficient Economy water heater tool provides helpful comparison of technology, service life, installed cost, and cost to own.  The pace of energy efficient technology innovation is brisk, so installed costs and…"
Jul 12, 2013
John Porterfield's discussion was featured

Systematic Study of Retrofit Practices

I have questions about roof cavity insulation, have input from local experts, though welcome hearing from those who are practicing in cold climate and hopefully near/at the cutting edge of Wx knowledge and  building science.I am specifying flat roof insulation for projects that include 1) roof cavity (separate rafters and ceiling joists, "roof crawl space") and, 2) rafters with deck and ceiling finish attached top and bottom.  Building with roof cavity has solid brick walls with retrofitted…See More
Jun 21, 2013
Sean Lintow Sr replied to John Porterfield's discussion Systematic Study of Retrofit Practices in the group Best Practices (Residential)
"I was hoping someone in your neck of the woods would have replied & I can't seem to find the SWS so let me just offer a few quick thoughts - SWS are not the only way to skin a cat & if best practice or other trusted information says…"
Jun 15, 2013
John Porterfield added a discussion to the group Best Practices (Residential)
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Systematic Study of Retrofit Practices

I have questions about roof cavity insulation, have input from local experts, though welcome hearing from those who are practicing in cold climate and hopefully near/at the cutting edge of Wx knowledge and  building science.I am specifying flat roof insulation for projects that include 1) roof cavity (separate rafters and ceiling joists, "roof crawl space") and, 2) rafters with deck and ceiling finish attached top and bottom.  Building with roof cavity has solid brick walls with retrofitted…See More
Jun 12, 2013
John Porterfield replied to Doug Horgan's discussion Geothermal real-world performance
"Hi Joseph, I have a client w/ three GeoX systems in a 4000+ residence that clearly do not function properly & have ruled out envelope deficiencies that would explain discomfort and high use.  I want to recommend retro-commissioning and ask…"
Mar 4, 2013
John Porterfield commented on Home Energy Magazine's blog post Home Non-Energy - Preparing Homes for Future Blackouts
"This is a great concept.  I had approached the Illinois Institute of Technology with this concept as a student "Interprofessional" project (IPRO) some years back and will repeat this suggestion.  There is no "one size fits…"
Jan 7, 2013
John Porterfield joined Tom White's group
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Trainers and Mentors

Share your experience with different training and mentoring methods. Learn about new training tools, certifications and training programs.See More
Oct 18, 2012
John Porterfield joined Sean Lintow Sr's group
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Best Practices (Residential)

Best Building, Retrofitting, or even Auditing Practices - what are they, what should change, what needs to find it's way to the dust bin of history?See More
Oct 17, 2012
Diane Chojnowski replied to John Porterfield's discussion A Spot for Tech Questions (Spot! Here Spot!)
"John, You're welcome to start a group on this topic. Sounds like a great idea!"
Oct 17, 2012
John Porterfield's discussion was featured

A Spot for Tech Questions (Spot! Here Spot!)

My firm provides post-installation inspections and owners representative services - independent guidance during installation similar to independent construction manager.  In these (of many) roles we are continually confronted by less than specified or agreed installation quality.  Difficulties inherent with work in existing construction is a constant reality that installers face.  We want to help installers get closer to effective installation WITH best practices and help owners and EE programs…See More
Oct 17, 2012

Profile Information

Company
eZing, Inc
Professional Certification
BPI, RESNET
Professional Interests
Figuring out smart things to do in buildings. Being a good person. Making sure things that are best kept in balance are, and things not not.
Website URL
http://www.ezing.pro
Blog URL
http://ezing.tumblr.com
Twitter ID
https://twitter.com/EnergyAuditing
Facebook Page
http://www.facebook.com/pages/eZing-Home-Energy-Audits/370653477511
LinkedIn Profile
http://www.linkedin.com/profile/view?id=9106639&locale=en_US&am...

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2018 Habitat X Summer National Conference at Big Sky Montana

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"Sampling would be primarily to verify 'Condition 1' or 'Normal Fungal Ecology'…"
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Daniel Cullen 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…See More
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Daniel Cullen replied to Bob Krell's discussion What Do You Do When You Find Suspected Mold? in the group Healthy Indoors (IAQ)
"Can anyone tell me exactly HOW mold sampling impacts the mold remediation process or protocol? Why…"
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Daniel Cullen joined Bob Krell's group
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Healthy Indoors (IAQ)

The Healthy Indoors group is focused on indoor air quality (IAQ), mold, moisture control, radon,…See More
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