RED Calc Tools and the ASHRAE 62.2 Ventilation Standard

The US Department of Energy has purchased the popular RED Calc tools and has made them free on the DOE's Building America Solution Center (BASC). In this course, we will explore the RED Calc suite of tools, particularly focusing on the ASHRAE 62.2 ventilation sizing tools. The course is targeted toward home energy professionals and those interested in home improvement. It is especially those needing to perform ventilation system sizing or other calculations in the field. A general practical knowledge of residential buildings and building science is helpful.


Continuing Education Units (CEUS) submitted 1 hour in*

• Green Business Certification Inc. (GBCI)
• LEED Accredited Professional HOMES (APH)
• Building Performance Institute (BPI) NonWholeHouse
• American Institute of Architects - AIA (HSW)
• Certified Green Professional (NARI & CGP)
• Certified GreenHome Professional (CGHP) Pillar(s): Energy, Health
• American Institute of Building Designers (AIBD)
• State Architect / Builder License may be applicable
• Building Science Institute (BSI) Verifier
• Certified Passive House Consultant (CPHC)
• Society of American Registered Architects (SARA)

What did people learn who took our survey?

Based on the session survey results, participants learned that the RED Calc Pro tool is now free and can be used effectively in the field to assess ventilation requirements, specifically in relation to ASHRAE 62.2 standards. Many discovered the availability of additional tools within the RED suite, such as the RED Cal tool for HVAC exhaust systems, and the benefits of responsive ventilation that adjusts to seasonal and environmental changes.


CEU Lessons Learned

1. *Understand* the importance of using RED Calc tools on the BASC to improve indoor air quality and promote health through proper ventilation sizing in accordance with ASHRAE 62.2 standards and meeting the LEED BD+C V4 Homes EQ Ventilation Prereq.
2. *Analyze* the differences between the stand-alone RED Calc tools and the RED Calc Pro web app to ensure the safest application of ventilation strategies in various environments.
3. *Introduce* the updates in the ASHRAE 62.2 standard to better support occupant welfare by enhancing the effectiveness of ventilation systems over time and meeting the LEED BD+C V4 Homes EQ Ventilation Prereq.
4. *Articulate* how the RED Calc Tools contribute to optimized ventilation sizing to foster a healthier indoor environment for all occupants who meet the LEED BD+C V4 Homes EQ Ventilation Prereq.


Need CEUS?
Take the Quiz here:
https://greenhomeinstitute.thinkific....


Speaker: Charlie Holly – Computer Scientist

Charlie Holly is a Computer Scientist in the Building Simulation and Design Group at the Pacific Northwest National Laboratory where he leads several residential building software projects including Home Energy Score, the Quality Install Tool, the IRA Rebate API, and RED Calc. Before joining PNNL in 2020, Charlie worked in the energy efficiency industry for fourteen years. He spent six years as a home energy auditor and then co-founded Residential Energy Dynamics where he was the chief software architect of their suite of RED Calc tools. Charlie is a voting member of the ASHRAE 62.2 Committee and chair of the Indoor Air Quality subcommittee.

Ph.D. Mathematics, University of Illinois – Urbana Champaign
B.S. Physics & Mathematics, Western Michigan University