Jack Duffy

  1. How do I know how many fans I need for a Blower Door or Enclosure Integrity Test?

    I have a Energy or Enclosure Integrity Test to perform.  How many fans do I need to properly run the test?  Do I have enough fans to run the test?

    We have created two tools to help you figure out how many fans you will need for your test. 

    Download either the Blower Door or Enclosure Integrity version of the Number of Fans Calculator

    Next, open the file in excel and "Enable Editing" when a security warning appears.

    Fill in all the fields highlighted in blue.  The number of fan results are highlighted in green.

    Here is what the Blower Door Number of Fans Calculator looks like:

    And this

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  2. Retrotec Newsletter: August 2017

    View Retrotec's Newsletter for August 2017
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  3. Retrotec Newsletter: September 2017

    View Retrotec's Newsletter for September 2017
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  4. Commercial Apartment Air Barrier Testing

    Published in TAB Journal Summer 2017 and written by Denny Whitzel, TBE, CxA Pacific Coast Air Balancing. View the original article here. 

    As required by Washington State Code, all commercial multi-unit residential structures are required to have air barrier testing performed to ensure they meet the state requirements for infiltration levels. During the construction process special procedures, materials and methods are utilized to ensure the airtight integrity of the inside and outside of the building are maintained. Yet even when the previous three are

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  5. Wohler Retrotec, Inc.

    Retrotec is excited to reveal that the deal between Retrotec Inc. and Wöhler Technik, a technology applications company, is finalized! The new company, “Wohler Retrotec, Inc.” continues to do business as “Retrotec.”

     

    Wöhler is a well-respected German company specializing in measuring instruments, inspection systems, cleaning tools, and related heating, ventilation, and building applications.

     

    Retrotec founder, Colin Genge, spent decades strengthening the blower door, duct testing, and clean agent enclosure integrity industries. With Retrotec experiencing unmatched and continued growth, Colin Genge’s decision to retire provided Retrotec with an opportunity to find a strategic partner to further expand into even wider-ranging markets. The decision to pair with Wöhler Technik came as an unmatched opportunity.

     

    While the acquisition stands to provide future opportunities in related

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  6. Making sense of leakage to the outside

    Written by Stacie Bagnasco, July 26, 2017.

     

    In California the California Energy Commission [CEC] aka Energy Standards, provide two basic methods for complying with low-rise residential energy budgets: the prescriptive approach and the performance approach. The mandatory measures must be installed with either of these approaches, but mandatory measures may be superseded by more stringent measures under either approach.

     

    The prescriptive approach, composed of a climate zone dependent prescriptive package is less flexible but simpler than the performance approach. Each energy component of the proposed building must meet a prescribed minimum efficiency.

     

    The performance approach is more complicated but offers considerable design flexibility. The performance approach requires an approved computer software program that models a proposed

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  7. Video Interview: Testing Results in the Cloud

    Our own Kirsten Richnavsky, a Retrotec Technical Sales Representative, was pleased to be interviewed at the NCBPA Conference in Raleigh, NC. 
     
    In this interview, Kirsten highlights factors that make Retrotec the industry leader, including equipment ease-of-use, online training, and detailed information about Retrotec's rCloud testing app.
     
    Thank you NCBPA & RFF Marketing for the interview!

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  8. Retrotec Newsletter: July 2017

    View Retrotec's Newsletter for July 2017
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  9. Retrotec Newsletter: June 2017

    View Retrotec's Newsletter for June 2017

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  10. EPA removed 20 years of Climate Change Science from its website

    Expect to see changes that will allow oil and gas companies to sell more product even in areas where renewables and conservation are cheaper without subsidies. Hiding the science of climate change will make it easier for America to continue to avoid a movement to 21st Century technology that will leave American behind the rest of the world competitively.  Consider that Norway will ban new gas powered cars by 2025 and Germany makes houses that use 1/20th the energy of an American house.

     

    America could fall well behind the rest of the world but there is at least on bright spot as Tesla just became America’s most valuable car company in a few years and will soon dominate solar collection with a

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