LCL Awards CENWAT1 Domestic Central Heating Boilers & Water Heaters Course
CENWAT1 (Domestic Central Heating Boilers & Water Heaters up to 70 kW net) is an ACS appliance qualification for gas engineers who install, commission, service and attend breakdowns on domestic central heating boilers and associated hot water systems.
It covers a wide range of boiler types, including combination boilers, storage water heaters and circulators, and is delivered through a combination of written and practical assessment aligned with UK industry standards.
Why Choose This CENWAT1 Qualification?
The LCL Awards CENWAT1 qualification reflects the current ACS standards and demonstrates your competence to work with domestic central heating boilers and water heaters safely and effectively. It’s recognised within the UK gas industry and supports spread of work scope when recorded on your Gas Safe registration.
Choosing PASS to deliver this qualification means you’ll benefit from experienced assessors, structured training environments and practical support designed to help you demonstrate your competence confidently during assessment.
What does the CENWAT1 qualification cover?
Topics & Syllabus
- Operating principles of central heating boilers and water heaters
- Installation requirements, pre-commissioning and commissioning checks
- Servicing procedures and maintenance tasks
- Identifying unsafe situations and corrective actions
- Fault diagnosis and effective breakdown response
- Working with circulators, combination boilers and hot water systems
- Appliance controls, safety devices and flueing considerations
- Natural gas and LPG appliance applications
It certifies you to install, commission, service, repair, and carry out breakdown work on domestic central heating boilers and water heaters up to 70 kW under Gas Safe regulations.
Gas engineers holding CCN1 (or COCN1) and CPA1 who wish to expand into domestic boiler and water heater work or renew an expired CENWAT certificate.
Yes. We offer reassessment programmes for existing certificate holders so you can renew CENWAT without repeating full initial training.
It includes both written theory and practical testing, covering installation, servicing, commissioning, flue checks, combustion analysis, and fault diagnosis.
Yes, both are mandatory prerequisites to assess competence with combustion analysers and appliance testing.
24 hours (Mon-Fri).
