Contact Us

Use the form on the right to contact us.

You can edit the text in this area, and change where the contact form on the right submits to, by entering edit mode using the modes on the bottom right. 

3398 Washington Road
Atlanta, GA 30344
USA

773.398.5288

Advanced residential construction and home improvement consulting and owner's advocacy in Atlanta, using the latest building performance diagnostic and modeling techniques and tools. Airtightness, insulation, HVAC, ventilation, moisture, and air quality and EMF consulting for homeowners and building professionals alike.

Videos/Podcasts/Articles

Home performance articles and stories from the field with internationally respected building forensics guru Corbett Lunsford at the Building Performance Workshop. Hear new episodes of the Building Performance Podcast, see new videos from the Home Performance YouTube channel, and learn all about how diagnostic testing (more than an 'Energy Audit') can make home improvement and new home construction a proven process!

Filtering by Tag: duct blaster

HVAC Airflow Diagnostics: Testing Carved Grilles for CFM, Velocity, Pressure Drop, and K-Factor

Corbett Lunsford

Our longtime friend and Patreon supporter Scott Marner (who manages QA for Illinois' Ameren home performance program) joined me to do some off-label, outside-the-box diagnostics on custom decorative HVAC grilles from Stellar Air Vents (https://stellarairdecorativeventcovers.com/). Just one more example of some non-engineers getting very sophisticated results from a cardboard box, some tape, and several thousand dollars of Retrotec and Testo HVAC testing equipment (https://www.trutechtools.com/). Scott was our FIRST EVER Patreon supporter- join him and become part of our work on this channel and the 'Home Diagnosis' TV series: http://Patreon.com/HomeDiagnosisTV

Comment
categories Performance Pros, HVAC, Videos, Testing Tools
tags testing, hvac, havc, grill, grille, pressure, back pressure, static pressure, pressure drop, velocity, face, anemometer, testo, large vane, retrotec, duc testing, duc tester, duct blaster, scott marner

Testing the Air Handler Cabinet Leakage

Corbett Lunsford

Mastermind student Treondras and I isolated the air leakage built into my Mitsubishi heat pump’s air handler cabinet using a Retrotec Duc Tester 300 and DM-32 gauge. Turns out I made the right decision with Mitsubishi! Their 5 cfm at 25 Pa beats Neil Comparetto’s 6 cfm record. Good job guys.

Comment
categories From the Field, Performance Pros, Testing Tools, Videos
tags mitsubishi, heating and cooling, cabinet, blower, furnace, heat pump, equipment, air leakage, tightness, duct blaster, iecc, cfm, how many, pressurize, depressurize, test, diagnostic, demonstration

#TBT: 8 Ways to Test Airflow in Heating, Cooling, and Ventilation

Corbett Lunsford

Corbett Lunsford demonstrates 8 methods for airflow testing in single family and multifamily homes heating, cooling, and ventilation, including:
1. Exhaust Flow Pan (Energy Conservatory's Flow Meter)
2. Cardboard Box Flow Pan (handmade by Corbett)
3. Pressure Matching (FlowFinder from Retrotec)
4. Pressure Matching (Duc Tester from Retrotec)
5. Velocity Pressure (24" Pitot Tube from Dwyer)
6. Small Vane Anemometer (Testo 416)
7. Large Vane Anemometer (Testo 417)
8. Plastic Bag (30 gallon lightweight garbage bag)

For more on these diagnostics:
http://HomePerformanceBook.com

Comment
categories Performance Pros, Testing Tools, Videos
tags hvac expert, hvac performance, airflow testing, diagnostics expert, comfort, anemometer, pitot tube, pressure matching, technique, exhaust fan, panasonic, box, pressure, duc tester, duct blaster, flowfinder, testo 416, testo 417, home performance, building performance

Home Performance Diagnostics Museum with Neil Moyer

Corbett Lunsford

Building forensics guru Corbett Lunsford gets his fix for prototypes of the testing tools we all know and love in the collection of American Treasure Neil Moyer: the first duct tightness tester (or Duct Blaster) built by Gary Nelson, a handmade flow pan (or Exhaust Fan Flow Hood), and a DIY House of Pressure!

Comment
categories Around the World, From the Field, Performance Pros, Testing Tools, Videos
tags moyer, building science, florida, fsec, duct blaster, relic, house of pressure, zpd house, flow pan, prototype, home performance, building performance, diagnostic, tools, testing, retrotec, energy conservatory, history, old, awesome