August  2015
Web Based Training and Educational Webinars
August Webinars

11:00 AM  to 12:00 AM PDT


Thursday, August 13th: Commissioning HRV & ERV for Advanced Installers

with J. West and Joe Medosch


Tuesday, August 18th: MultiFan Overview

with J. West and Joe Medosch


Thursday, August 27th: Gauge 101 with Dr. Energy Saver

with Joe Medosch and J. West


We add webinars throughout the month, click here

For more information on our Webinars

Tech Challenge

Q: Is there a "hold" feature for the readings on the DM32 Smart Gauge?  Free the gauge and write down the results


A: Yes, Tap channel A to activate the hold feature  

Tap channel A to release the hold feature

FYI-While the HOLD feature is active, you can stop the fan and the RESULTS are still displayed.  Also, you can tap Channel B and change the results-all while the HOLD feature is on.  Note once you release the hold feature the RESULTS will be cleared. 


Last months Tech Challenge (July)

When doing a depressurizing duct test where should the rings or plugs be located?

b) Not visible and inside the flex duct on the inlet side of the DucTester.



Send us your technical challenge

Did You Know...?
  • The DM32 smart gauge can provide EqLA changes live directly in the gauge  
  • Here is how...

    Tap > [Settings] > [Results to be displayed] > [...] in inside circle in lower right corner at the to > [EqLA].  Tap multiple times to change from sq. in., sq. ft, cm2

Linkedin is a great resource for industry answers
If you are a contractor or tester who work on houses and have questions about Energy Audits or Technical Issues for Home Performance, check out this group:

If you have a Multi-Fan issue, try checking out this group:
Retrotec is ANAB Accredited
Retrotec is now ISO 17025 accredited for pressure and flow. This takes years of work to accomplish and a huge investment in quality calibration equipment. No other blower door company has this. ISO 17025 calibration is now included with every Retrotec Gauge and is optional for all our newest duct testers and blower doors. Authorities worldwide recognize this accreditation
DM32 Firmware is NOW v.62
Is your software up to date?  To check your firmware on your gauge:       
Go to your settings and look at the last page, which will give you your current version.  We have a  video which   easily guides you through the update process.  
To see what's changed in version 62, Click here.
Feedback from the Field

Have a question or something unique from the field?  Send it to for answers and have your question posted here.  Please include any images that help describe your question.

Upcoming Events
NC Building Performance Conference

Monday, September 1-Wednesday, September 3, 2015. 

@ The Hilton, 300 North Water Street,   Wilmington, North Carolina

Booth is located on the Atrium Level


Passive House National Conference 

Friday, September 11-Saturday, September 12, 2015 

@ The Hyatt Regency, 151 East Wacker Drive, Chicago, IL.  

Booth 15 in the Crystal Ballroom


Tuesday, September 15-Thursday, September 17, 2015

@ Americas Center, 701 Convention Plaza, St. Louis, MO

Booth 585


Friday, September 18-Sunday, September 20, 2015

@ Energylogic Academy, Estes Park, CO

MultiFan Road Show

Wednesday, September 23-Friday, September 25, 2015

@ CEDA, 567 Lake Street, Chicago, IL

SMACNA Annual Convention
Tuesday, September 29, 2015
@ The Broadmoor, 1 Lake Avenue, Colorado Springs, CO
Booth 320

Remodeling Show/Deck Expo/JLC Live Residential Construction Show
Wednesday, September 30-Friday, October 2nd
@ Navy Pier, 600 East Grand Avenue, Chicago, IL
Booth 128

For more information about our live events    

Multi-Fan Road Show Coming to a City Near You

Call to action!  Be on the lookout for Registration in the following cities:

    • Chicago-September 23-25
    • Atlanta-October 14-16
    • New York City-October 26-28
Provide email FOR more info.
List Yourself as a Trainer and your Events on Our Website
Follow this link to add yourself or your company as a trainer on our website
Acronym of the Month


Do you know what EqLA stands for?  Do you use it in your results? Look for the definition in September's Newsletter


July's Acronym ACH50 means... Air Changes Per Hour at 50 Pascals.  Calculated as CFM50 (cubic ft. per min at 50 Pascals) x (converts minutes to hour) divided by the volume of the conditioned area.


FYI-ACH50 RESULTS can be displayed live in Channel B on the gauge.  See July's Newsletter for how to display ACH50.