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ASHRAE 62.2 Ventilation for Single-Family Dwellings


Instructor: Rick Karg

Subjects: Renewable HVAC: HVAC Design, Green Building: Building Science, Green Building: Ventilation IAQ

Length: 6 weeks

Student Rating

9.3 out of 10 (view ratings)
146 students have taken this course


Developed in partnership with the Building Performance Association

Master the best practices for calculating ventilation requirements, optimizing equipment selection, and understanding where the standards are headed. The course includes many calculators and design tools for winning and completing jobs faster and with greater confidence.

This is a comprehensive, hands-on training course for professionals. Instructor Rick Karg has been a member of the ASHRAE 62.2 ventilation committee since 2007 and heads the existing dwellings group. He served as the lead editor of ASHRAE’s Guideline 24-2015, a document that supplements the ASHRAE 62.2 standard.

The extensive curriculum focuses on the ASHRAE 62.2-2016 Standard, but also addresses the 2013 version of the Standard.

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Preview the Course Material

Check out a free preview of the course by clicking the button below. This is a live assignment from the course and will give you a good sense for what the course will be like.

Free Preview - Indoor Air Quality Basics, Part 1 of 2, week 1
Included: Valuable Tools & Calculators

As a student in the course, you'll have access to the full Residential Energy Dynamics (RED) library and will be instructed in how to use the tools. Each one you use has the potential to be a game-changer for your business or organization.

Updated for the Ashrae 62.2 2016 Standard

The extensive curriculum focuses on the ASHRAE 62.2-2016 Standard, but also addresses the 2013 version of the Standard.

Flexible Online Training for Industry Professionals

You can begin this online course instantly upon enrollment. Get access to all of the course materials as soon as you enroll. The instructor-led session will begin on the scheduled start date. During the session dates the instructor will be in the course answering questions on the discussion board. After the instructor-led session ends, you'll continue to have access to all of the course materials for a full year and can complete the course at your own pace.

Access Information and Build Your Training Library

After enrolling, the course materials will remain in your account and be accessible 12 months (1 year) after the session end date. Access can be extended beyond 1 year with a monthly membership. Rewatch videos and review assignments as many times as you want. View updates the instructor makes to the course as the industry advances. Return to your course anytime with online access from anywhere in the world.

Earn A Certificate of Completion

When you complete this course you are eligible for a certificate of completion from HeatSpring. You can download your certificate as soon as you have completed all of the course requirements. Students can easily share their verified certificates on their LinkedIn profiles using our LinkedIn integration.

Earn Continuing Education Credits

Approved for: 15 BPI CEUs.

As an architectural engineer, certified energy auditor, and certified general appraiser, I would encourage anybody with similar background and experiences to enroll in this outstanding course. This is cutting-edge knowledge from the best individual resources.

- Richard Sevigny, Richard R. Sevigny and Associates

This course was excellent, a real wake up call on the dynamics and importance of ventilation.

- Mark Lyman, Rural Alaska Community Action

This course really "drilled down" into the ASHRAE 62.2-2013 code in regards to how and why it is important. It is more than just getting moisture out of the bathrooms.

- Tom Andrews, Andrews Home Energy Services

This course is a must for anyone needing to know how to properly implement [ASHRAE] 62.2 ventilation standards.

- Chad Urie, South Central Community Action Partnership

I would highly recommend this course to anyone associated with the building science and home performance fields. Lots to learn here. Well put together.

- David Watkins, DuPage County Community Services

+ Read more student ratings and reviews for this course


Rick Karg

President, Residential Energy Dynamics

Rick spent ten years building houses, taught college economics, helped design one of the first energy modeling programs, managed the Maine Home Performance Program, and has been training utility staff, low-income weatherization personnel, and private energy auditors and contractors for over three decades. He has been a member of the ASHRAE 62.2 ventilation committee...[more]

Free Preview - Indoor Air Quality Basics, Part 1 of 2, week 1

Course Outline

Welcome - Orientation Materials

This course is self-paced, so you don’t need to be logged in at any specific time. You can complete the material whenever is convenient and work ahead or catch up if you fall behind. The course discussion board is a great place to interact with other students and ask questions. Expect to dedicate a minimum of 5 hours per week to the course. The instructor-led session runs for the posted dates and you will receive weekly emails to keep you on pace. Course materials will remain in your account with minimum guaranteed access for 12 months (1 year) after the session ends. Please review the orientation materials and introduce yourself on the discussion board.

  • Introduction to HeatSpring (Video - 01:25 minutes) Preview
  • Set up email notifications and your student profile (Text)
  • ASHRAE 62.2 and Ventilation Facts (Video - 20:30 minutes)
  • Introduce yourself on the discussion board (Text)
Week 1 - Introduction and Indoor Air Quality (IAQ) Basics

Before we discuss ventilation, it is important to know why ventilation is important. Do we really need these additional mechanical devices in our homes? Yes. Haven’t we been OK without them for decades? Yes and no. We will address the major contaminants found in our homes, including PM2.5, formaldehyde, acrolein, nitrogen dioxide, and moisture. It is important to keep contaminants out of the house (source control) and manage those that are generated in the house by ventilating and filtering the air.

  • Week 1 Study Guide (Text)
  • Indoor Air Quality Basics, Part 1 of 2, week 1 (Video - 31:25 minutes) Preview
  • Indoor Air Quality Basics, Part 2 of 2, week 1 (Video - 39:11 minutes)
  • Why We Ventilate. Logue, J.M., et al. LBNL, September 2011 (11 pages) (Download .pdf)
  • A Brief Guide to Mold, Moisture, and Your Home. EPA (20 pages) (Download .pdf)
  • Formaldehyde. ATSDR. (2 pages) (Download .pdf)
  • Acrolein. ATSDR. September 2005 (2 pages) (Download .pdf)
  • Healthy Indoor Environment Protocols for Home Energy Upgrades, EPA, October 2011 (48 pages) (Download .pdf)
  • Introduction and Indoor Air Quality (IAQ) Basics (10 questions) (Quiz)
  • Required Discussion Board Post for Week 1 (Text)
Week 2 - Basics of Ventilation Methods

“Build tight, ventilate right” was first stated in 1992. This statement is not only good rule for the occupants of our dwellings, but it is also good for our houses. We will examine how and why ventilation interacts with natural infiltration by using an online infiltration modeling tool. Descriptions and examples of exhaust-only, supply-only, and balanced ventilation equipment will make you knowledgeable with all ventilation types and their related controls. This topic will clearly show you what your options are.

  • Week 2 Study Guide (Text)
  • The Basics of Ventilation Methods, week 2, Part 1 of 2 (Video - 36:46 minutes)
  • The Basics of Ventilation Methods, week 2, Part 2 of 2 (Video - 30:45 minutes)
  • Whole-House Ventilation. U.S. DOE. (Resource)
  • Review of Residential Ventilation Technologies. Russell, M., et al. LBNL, August 2005 (38 pages) (Download .pdf)
  • Systems Research on Residential Ventilation. Rudd, A. and Lstiburek, J., Building Science Corp., 2008 (16 pages) (Download .pdf)
  • The History of Ventilation and Temperature Control. Janssen, J.E. ASHRAE Journal, September 1999 (6 pages) (Download .pdf)
  • Basics of Ventilation Methods (10 questions) (Quiz)
  • Required Discussion Board Post for Week 2 (Text)
Week 3 - Ventilation Standards and Calculating Ventilation Requirements

ASHRAE Standard 62.2, "Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings", was first released in 2002. It has become the most often used standard for ventilation in the U.S. The International Residential Code (2012 and 2015) includes ventilation requirements that are closely aligned with ASHRAE 62.2, but are relatively brief. This week we will address the details of these ventilation standards/codes, stressing ASHRAE 62.2. By the end of the week, you will be familiar with local and whole-building ventilation requirements for new and existing dwellings, both single-family and multifamily. Additionally we will calculate the minimum ventilation requirements for example dwellings using ASHRAE 62.2 and a few examples for California’s unique version of the 62.2 standard. For these examples, we will use free online tools that will be available during and after this course.

  • Week 3 Study Guide (Text)
  • Ventilation Standards, week 3, part 1 of 2 (Video - 34:56 minutes)
  • Calculating ASHRAE 62.2 Ventilation Requirements, week 3, Part 2 of 2 (Video - 54:24 minutes)
  • RED ASHRAE 62.2-2016 Ventilation tool (Resource)
  • User Guide for RED ASHRAE 62.2-2016 tool (Resource)
  • ASHRAE 62.2-2016, Ventilation and Acceptable Indoor Air Quality in Residential Buildings (Resource)
  • RED ASHRAE 62.2-2013 short video tutorial (5:37 in length) (Resource)
  • RED ASHRAE 62.2-2013 extended video tutorial (23:40 in length) (Resource)
  • Week 3 homework/quiz (Text)
  • Submit Week 3 Homework/Quiz (Submit File)
  • Required Discussion Board Post for Week 3 (Text)
Week 4 - Mechanical Ventilation Equipment and Installation

Up to this point we have looked at why ventilation is important, what the basic types of ventilation systems are, what the standards/codes require, and how to size the ventilation fans correctly. This week we will look at how to select fans and controls and how to install them properly for the lowest cost. You will learn about the best fans/HRVs/ERVs (brands and models) and controls (brands and models), effective ductwork and termination installation, and performance testing (airflow measurement methods). This week brings all the previous information together for a great, cost-effective installation that satisfies your customers and minimizes re-works.

  • Week 4 Study Guide (Text)
  • Mechanical Ventilation Equipment and Installation, week 4, Part 1 of 3 (Video - 36:44 minutes) Preview
  • Mechanical Ventilation Equipment and Installation, week 4, Part 2 of 3 (Video - 34:10 minutes)
  • Mechanical Ventilation Equipment and Installation, Week 4, Part 3 of 3 (Video - 29:07 minutes)
  • RED Pitot Tube Airflow tool (Resource)
  • RED Pitot Tube Airflow tool User Guide (Resource)
  • Evaluation of Flow Capture Techniques for Measuring HVAC Grille Airflows. Walker, I.S. and Wray, C.P. LBNL, August 2003 (17 pages) (Download .pdf)
  • How to Provide Makeup Air for Range Hoods, Martin Holladay, Fine Homebuilding, December 2012 (Download .pdf)
  • Performance Assessment of U.S. Residential Cooking Exhaust Hoods. Delp, W.W. et al. LBNL, May 2012 (37 pages) (Download .pdf)
  • Commissioning Residential Ventilation Systems: A Combined Assessment of Energy and Air Quality Potential Values. Turner, W.J.N. et al. LBNL, July 2012. (39 pages) (Download .pdf)
  • How to Maintain Your Heat Recovery Ventilator. Canadian Mortgage and Housing Corporation (CMHC)How (Resource)
  • Mechanical Ventilation Equipment and Installation (12 questions) (Quiz)
  • Required Discussion Board Post for Week 4 (Text)
Week 5 - Costs and Benefits of Ventilation Systems and the Future of the ASHRAE 62.2 Standard

Are ventilation systems costly to operate? Most people erroneously perceive they are. This week we will calculate the cost of operating the fan motor(s) and the cost of the conditioned air that is exhausted from a dwelling by the ventilation equipment. The low costs are likely to surprise you. The free online tools used for these calculations will be available to you during and after this course. We will carry these calculations a step further by determining the savings-to-investment ratio for controlling airflow (air sealing and adding ventilation). Finally, we will discuss changes that are coming to the ASHRAE 62.2 standard in 2016 and after. This knowledge will prepare you for the near future of your ventilation installations.

  • Week 5 Study Guide (Text)
  • Costs and Benefits of Ventilation, Part 1 of 2 (Video - 09:37 minutes)
  • Calculating SIR for Controlling Airflow in Existing Dwellings, week 5 (Video - 19:38 minutes)
  • Assessment of Indoor Air Quality Benefits and Energy Costs of Mechanical Ventilation. Logue, J.M. et al. LBNL, June 2011 (11 pages) (Download .pdf)
  • Required Discussion Board Post for Week 5 (Text)
Week 6 - Final Project

You'll be asked to apply everything you've learned into a final capstone project: running calculations and doing equipment selection based on the ASHRAE 62.2 Standard.

  • Week 6 Study Guide (Text)
  • "Mixed UP IAQ Blues", a song by Eric Werling (Resource)
  • Final Project Document (Download .pdf)
  • Final Project - Student Upload (Submit File)
After The Course - Feedback and Additional Resources

No matter how great this course is, we know it's just one part of a bigger journey. In this module we'll start thinking about what comes next. You'll provide feedback on the course and learn about additional resources. Don't forget that you'll have access to the course materials for 12 months after the session ends. Feel free to come back as much as you like to continue learning, and please stay in touch. After your year of access expires you can optionally extend access with a HeatSpring Membership.

  • 1 Year of Access to Course Materials (Text)
  • Feedback: 2-minute Exit Survey (Survey)
  • Consider Joining as a HeatSpring Member (Resource)
  • Certificate of Completion: Request a Certificate (Certificate)
Free Preview - Indoor Air Quality Basics, Part 1 of 2, week 1

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