Webinar recordings library

Explore free recordings of dozens of past IOR webinars covering all sorts of topics including heat pumps, air conditioning, refrigerants and refrigeration, as well as service engineer section talks on recycling and leak detection  - Go to IOR Webinar Channel 

Recent topics:

  • Press-fit and Compression pipe fittings for Service Engineers
  • Refrigerant leak detection for Service Engineers
  • Why dont people install heat pumps
  • Sustainable refrigerated transport


IOR e-learning programmes

Our free on line resources provide valuable ways of updating your skills, learning from experts at a time to suit you. Topics available:


Database of guidance notes for field engineers and technicians


Over 180 short guides are available to members of our section on good practice and fundamentals. This database builds up to a comprehensive and reliable guide to technician skills and knowledge.  Search our database here https://ior.org.uk/rachp-publications?filter=32&state=a   Access is free to IOR Members, Section Subscribers and Students. (Find out how to join here)


IOR Education Guidance notes



Textbooks on refrigeration, air conditioning and heat pump fundamentals and theory 

Need to brush up on those fundamental principles? The list below includes a small selection of textbooks recommended by IOR members.

  • Principles of Refrigeration by R Dossat

Comprehensive coverage of refrigeration theory, components, and systems analysis and design. Presents the science behind the operation of refrigeration systems as a method for building solid analytical skills, which will set the student/technician apart when it comes to understanding and troubleshooting system malfunctions, inefficiencies, and service requirements. ISBN 0130272701

  • Refrigeration and Airconditioning (5th edition) edited by G Hundy  

Comprehensive introduction to the principles and practice of refrigeration. Clear and straightforward, it is designed for students (NVQ/vocational level) and professional HVAC engineers.

Provides an introduction to the fundamentals of the technology. New material in this edition includes the latest developments in refrigerants and lubricants, together with updated information on compressors, heat exchangers, liquid chillers, electronic expansion valves, controls and cold storage. Topics also covered include efficiency, environmental impact, split systems, retail refrigeration (supermarket systems and cold rooms), industrial systems, fans, air infiltration and noise. ISBN 0750685190  

  •  Modern Refrigeration and Air Conditioning by Althouse, Turnquist and Bracciano.

Published by Goodheart Wilcox. Described as a good read for the refrigeration engineer with useful tables on troubleshooting. Specify the metric version ISBN 1590702808

  • Refrigeration Equipment: A servicing and installation handbook by A Bryant

A clear, practical guide to the installation, testing and servicing of industrial and domestic refrigeration equipment. It also provides an introduction to NVQs and other vocational courses, a new section on the topical subject of alternative refrigerants and a chapter on the principles of air conditioning. ISBN 0750636882

  •  Principles of Refrigeration by W B Gosney 

A comprehensive book for learning about refrigeration with chapters covering methods of producing cold, machinery and plant, vapour compression systems, compression processes, multi-stage vapour compression, vapour absorption, ideal gas cycle, crogenic engineering.  Currently out of print but available from reference libraries ISBN 0 521 23671 1

If you would like to recommend additional books to be added to this list please contact us.