Today we talk with Kristof "Handsome" Irwin, founder of Positive Energy in Austin Texas, about why your air conditioner is probably an idiot (bless its heart) and HVAC heaven that you might not have heard about.

#53 A/C CAN BE SEXY: Kristof Irwin on the Magic of Variable Refrigerant Capacity

The Building Performance Podcast is an interview series drawing on the experience and ideas of a wide array of professionals in the high performance building industry. 
The intersection of advances in building technologies, the energy crisis, green building trends, and the environmental crisis has made it hard to pursue business-as-usual. The general climate is forcing those of us in the building industry to take a more integrated, systematic approach to building.
We talk with engineers, policy makers, program managers, contractors, diagnosticians, ESCOs, architects, utilities, and building managers, among others.  Hosted by Corbett Lunsford of the Building Performance Workshop, author of Home Performance Diagnostics and creator of an arsenal of resources for understanding and using home performance testing.

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Today we talk with HVAC design legend Russ King (https://kwikmodel.com) about how to trim the fat out of heat load calculations in Manual J (and how you sometimes can't), along with fine points on duct design, grille selections, and a brand new movement in software to help homeowners perform their own load calculations (https://DIYloadcalcs.com). Hosted as always by Corbett Lunsford (https://BuildingPerformanceWorkshop.com). See the first-ever TV series about the Science of Homes at: https://HomeDiagnosis.tv

#92 HVAC Design Softwares with Russ King of KwikModel

Today Corbett drills down into the details of high-resolution, long-lasting testing trackers called 'dataloggers' with Paul Gannett, an engineer at HOBO by Onset. These days we can track the temperature, humidity, carbon dioxide (CO2), light levels, electrical load, and so much more with these instruments that often cost under $200 (which used to be unheard of). Learn more about HOBO dataloggers: https://www.onsetcomp.com/

#91 DATALOGGERS 101: Tracking Performance by the Second with HOBO's Paul Gannett

Today Corbett dives deep into the science of using HVAC to control indoor air quality (IAQ) with Dr. Jeffrey Siegel, professor of civil engineering at the University of Toronto. Jeff is named in over a hundred scientific studies published in this topic, and over the 45 minutes he blows conventional wisdom out of the water again and again.

#90 HVAC NO MERCY MYTHBUSTING with Dr. Jeffrey Siegel

Today we went deep with Matt Risinger (https://www.youtube.com/user/MattRisinger)on the challenges builders face from their industry, their traditions, and their clients. Part of our upcoming Season Two of 'Home Diagnosis' TV, which you can see at: http://HomeDiagnosis.tv

#89 THE REAL JOB OF BUILDING: Matt Risinger on the Hardships and Obstacles of Contractors

In one of our all-time favorite (and longest) interviews, Corbett and Grace Lunsford talk with Rob Dunn, a researcher and expert on ecology within homes and author of the amazing book 'Never Home Alone' (http://robdunnlab.com). The conversation ranges from black mold in drywall to biofilm in plumbing to the extreme environments within our 'normal' American homes- and where we're headed. You can help support the making of this podcast for as little as $5 a month at: http://Patreon.com/HomeDiagnosisTV

#53 A/C CAN BE SEXY: Kristof Irwin on the Magic of Variable Refrigerant Capacity

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