Gas Boiler Specification - Level 2

This level 2 course is the second in a 2 part series, designed for those who want to improve their knowledge and learn best practice when specifying a gas boiler. 

Throughout the day the trainers will be coaching you through various specification tasks discussed using Worcester Bosch's range of gas boilers.

Location(s): Worcester, Wakefield, Local colleges
Duration: 1 day
Cost: £25.00 per person

  • Understand effective boiler, radiator and cylinder sizing for a dwelling.
  • Understand the basics of primary system pipe sizing.
  • Specify flue systems and their terminations effectively.
  • How to size an expansion vessel for a system
  • Specifying appropriate controls
  • Understand S-Plan, Y-Plan and Internal Diverter Valve system types.
  • Specifying gas pipe sizes.

Models Covered 

Worcester Bosch gas boilers, including:

  • Greenstar i Range
  • Greenstar Compact Range
  • Greenstar 8000 Range


It is recommended that you have some prior knowledge or be involved within the industry before booking this course. 

Additional Information

It is recommended that you attend Gas Boiler Speceifcation Level 1, depending on experience, before attending this course.

If you need to cancel or rearrange a booking we require notice of 10 working days prior to the course start date so that the place can be reallocated. If the required notice is not received within this timescale any monies paid will be forfeited.

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Want to speak to someone about training?

You can call us on 0330 123 0166, email us at, or find your nearest Technical Sales Manager.