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2021 ASHRAE Handbook—Fundamentals Missing Updates

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2021 ASHRAE Handbook—Fundamentals Missing Updates

The 2021 ASHRAE Handbook−Fundamentals was published in June without the intended updates to the following chapters:

  • Ch. 13, Indoor Environmental Modeling
  • Ch. 14, Climatic Design Information
  • Ch. 18, Nonresidential Cooling and Heating Load Calculations
  • Ch. 19, Energy Estimating and Modeling
  • Ch. 23, Insulation for Mechanical Systems
  • Ch. 24, Airflow Around Buildings

We apologize for this delay and inconvenience and appreciate your patience as we work to update these chapters and make them available to ASHRAE Members and the public. The additional updates to the Handbook include extensive updates to tables for nonresidential load calculations, new and expanded climatic design guidance, and important new information on insulation for mechanical systems.

ASHRAE expects to have the chapter updates and the complete, updated 2021 ASHRAE Handbook−Fundamentals available in the ASHRAE Technology Portal in August 2021. We will alert you via email as soon as it is available in the Technology Portal.  

Additionally, ASHRAE members will receive one-year complimentary access to ASHRAE Handbook Online. The Handbook Online contains the four most recent volumes of the Handbook plus supplemental features including videos, spreadsheets, and case studies. Learn more and login here with your member credentials for access.

Nonmember purchasers of the print edition of the 2021 Handbook will receive PDFs of the entire volume’s chapters when the updates are complete at no charge.

Members and purchasers will be notified as soon as the updates are available.