The ASHRAE Handbook is published in a series of four volumes, one of which is revised each year, ensuring that no volume is older than four years. Each volume is available in I-P (Inch-Pound) or SI (System International) units of measurement. Contact Handbook Editor Moli (Heather) Kennedy via e-mail at hkennedy@ashrae.org.
Subscribe to or Access ASHRAE Handbook Online
Subscribers may login to ASHRAE Handbook Online to view content anytime, anywhere while online.
HANDBOOK ONLINE
Download Member Benefit Option: Handbook PDFs
If you selected the Handbook PDF as your member benefit, you can download it from the ASHRAE Technology Portal.
Purchase Handbook in Print* or PDF
Current Handbook volumes (in print) or individual chapters (in PDF) may be purchased through the ASHRAE Bookstore. PDFs of the entire volumes for 2025 ASHRAE Handbook—Fundamentals, 2024 ASHRAE Handbook—HVAC Systems & Equipment, 2023 ASHRAE Handbook—HVAC Applications, and 2022 ASHRAE Handbook—Refrigeration, may be purchased through the ASHRAE Technology Portal.
Purchase the volume or individual PDFs in the Bookstore:
PURCHASE THE HANDBOOK
Subscribe to a complete set of PDFs through ASHRAE Technology Portal:
SUBSCRIBE to HANDBOOK PDFS
*New and renewing full dues paying Full Member and Associate grade members have the option to add the printed ASHRAE Handbook for a discounted rate of $70 (U.S.) and $89 (International) during the join and renew process. Pricing inclusive of shipping.
Comment on the Handbook
ASHRAE welcomes your comments on the Handbook or a specific Handbook chapter.
Comment on the Handbook: To submit a comment about any aspect or part of the Handbook series, you can email the Handbook editor here.
Review a Handbook Chapter: To provide your feedback about a specific Handbook chapter, you can answer the brief survey questions on the Handbook Chapter Review Form
Handbook Central
Information and tools for ASHRAE TCs developing Handbook Content
ACCESS HANDBOOK CENTRAL
For more ASHRAE Handbook Committee information, go to the Handbook Committee Page
Handbook Corrections
General Handbook Corrections - I-P Edition
General Handbook Corrections - SI Edition
Handbook Series Content
Composite Index to entire Handbook Series (Updated August 1, 2018)
2025 ASHRAE Handbook—Fundamentals
Description of the 2025 ASHRAE Handbook—Fundamentals
Table of Contents 2025 ASHRAE Handbook—Fundamentals
2024 ASHRAE Handbook—HVAC Systems and Equipment
Description of the 2024 ASHRAE Handbook—HVAC Systems and Equipment
Table of Contents 2025 ASHRAE Handbook—HVAC Systems and Equipment
2023 ASHRAE Handbook—HVAC Applications
Description of the 2023 ASHRAE Handbook—HVAC Applications
Table of Contents 2023 ASHRAE Handbook—HVAC Applications
2022 ASHRAE Handbook—Refrigeration
Description of the 2022 ASHRAE Handbook—Refrigeration
Table of Contents 2022 ASHRAE Handbook—Refrigeration
Handbook History
A Brief History of the ASHRAE Handbook
Translations of ASHRAE Handbook and ASHRAE Standards
ASHRAE supports the use of ASHRAE Standards and ASHRAE Handbook internationally. Procedures and policies are in place to promote such uses while protecting ASHRAE's intellectual property and technical credibility. Agreements vary depending on source of requests (ASHRAE chapters, Associate Societies, commercial publishers or other commercial firms, government, standards bodies, other associations, and educational institutions). ASHRAE also considers requests for translation of other ASHRAE books, articles, and papers. To request a translation agreement, contact Mark Owen, Publisher/Director of Publications & Education, at mowen@ashrae.org.
View a complete list of Standards and Guidelines currently offered by ASHRAE
Titles, Purposes and Scope