Skip to main content

Key features and benefits

  • Study at our World Class Campus
  • Fantastic learning facilities
  • We work with over 3,000 employers to help you find a job
  • Rated "Good" by Ofsted in all areas - as of January 2022


Dates are available upon request, please contact 01254 292451 or email for further information

This assessment will enable gas engineers to expand their scope of work to include Domestic Gas Cooking Appliances. The assessment will cover free standing and slide in cookers, built in hotplates, built in/under ovens and grill units.

A re-assessment for Cookers (CKR1), which is required every five years, is also available at a reduced cost.

What will I study?

Training is available prior to carrying out the assessment if required.

Entry requirements

Must already be accredited with either:

  • (CNN1) Domestic Gas Safety
  • (COCDN1) Change over from Commercial Core to Domestic Gas

For re-assessment, which is required every five years, candidates must already be accredited with (CKR1) Domestic Gas Cooking Appliances.

How will I be assessed?

Candidates will complete a series of written and practical assessments.

What can I do next?

Candidates may consider looking to add other appliances such as (HTR1) Fires and Heaters, (DAH1) Warm Air Heaters etc. to expand their scope of work.

We offer a wide range of Gas courses. Contact the Gas team on 01254 292451/01254 292500 or email

I found my time in Blackburn College life changing

Imran Ajaaib
  • Ofsted Good
  • Lancaster University.
  • University of South Wales.
  • University of Central Lancashire.
  • Skills for Health Quality Mark
  • Advance HE.
  • University of the Arts London.
  • Disability Confident Employer.