CCN1 Gas Core Safety & Appliances Refresher Training & Re-assessment (CENWAT1, CKR1, HTR1)

Duration: 1 day refresher training and 2-3 days re-assessment

Cost: From £600

Apply Now


To remain on the Gas Safe Register it is a requirement that all CCN1 Gas Core Safety and appliance competence qualifications are renewed every 5 years. This course is aimed at operatives whose gas qualifications have expired within the last 12 months or are due to expire following the 5 year cycle.


Gas Core Safety (CCN1) only - £600
Gas Core Safety + 4 Appliances Package (CCN1, CENWAT1, HTR1, CKR1) - £800

Course objectives

As a re-assessment package, the course is designed to refresh the candidates’ knowledge and understanding of CCN1 Gas Core Safety as well as the installation and maintenance of boilers, water heaters, gas fires, cookers and CPA1 Flue Gas Analysis.

Who is course aimed at

This course is for candidates whose CCN1 Gas Core Safety and Appliance competence certificates are due to expire following the 5 year cycle or have expired less than 12 months ago.

Entry requirements / Pre-requisites

Candidates must hold a CCN1 Gas Core Safety and appliance competence Certificates or the equivalent (NVQ Level 2 or Diploma Level 3 in Gas Installation and Maintenance) which have not expired more than 12 months ago.

Course content

Training and assessment will consist of the following topics:

  • Gas Safety & Use Regulations
  • Unsafe Situations
  • Pipe work up to 35mm
  • Combustion
  • Gas Controls
  • Tightness Testing & Purging
  • Ventilation
  • Open, Balanced and Room Sealed Flues (principles of operation and testing)
  • CPA1 Flue Gas Analysis
  • CENWAT1 (boilers and water heaters)
  • HTR1 (gas fires)
  • CKR1 (cookers)

Course duration


ACS Element

Refresher Training



Gas Core Safety


1 Day

2 Days


Gas Core Safety, Boilers, Water Heaters, Fires, Cookers


1 Days

3 Days


Training Method

In house theory and practical training


The assessment consists of multiple choice question papers and practical assessments.

Course Outcome and Qualification

Successful completion of the assessments will give candidates a certificate of competence in CCN1 Gas Core Safety as well as Boilers and Water Heaters, Gas Fires, and Cookers. This will allow them to continue to carry out work on the appliance/s they have been assessed for. Candidates will also be certificated for CPA1 combustion performance analysis which is mandatory to carry out any work on boilers or gas fires.

Materials/Equipment Required

As this is an open book assessment, candidates are advised to bring with them a CCN1 Gas Core Safety Manual as well as manuals for the appliances they have chosen for assessment. Viper books can be purchased at our centre at a cost of £50. Candidates should also be equipped with pens, paper and a calculator. All tools and equipment required for the practical assessment are provided at the centre. Candidates are also advised to dress appropriately.

Please contact us for more information on 01923 253 866

Apply Now

Education Partners

We work alongside many different organisations to get the best out of our students

Partner Image

Blueflame Certification

Partner Image

Gas Safe Register

Partner Image

European Social Fund

Partner Image

Job Centre Plus

Partner Image


Partner Image


Partner Image

City & Guilds

Partner Image

matrix Standard

Partner Image

EEIAS Gold Approved Provider

Partner Image

Quality Heating

Partner Image


Partner Image


Partner Image

Trac Pipe

Partner Image

Rated Good Provider by Ofsted

Social Hub

Keep up to date with the latest course information and what we
are tweeting in the engineering world.