ACS Combined Wet Central Heating & Water Heater (CENWAT1)

Course Information

  • Course Code: G803
  • Duration: 6 hours
  • Validated by: NIC
  • Price: £96.00
  • Times: 09:00-16:00


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 fired central heating/hot water boilers and circulators, combination boilers, storage water heaters and instantaneous water heaters or heat input

A re-assessment for (CENWAT1) Combined Wet Central Heating and Water Heater), 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:

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

For re-assessment, which is required every five years, candidates must already be accredited with (CENWAT1) Combined Wet Central Heating and Water Heater.

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 (CKR1) Cookers,  (HTR1) Fires & 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

For more information

For more information about this course, contact our specialist team on 01254 29 25 00 or email