Gas Boilers & Water Heaters (ACS CENWAT)

The CENWAT Domestic Gas Central Heating Boilers and Water Heaters qualification is designed for gas engineers who need to develop or maintain their competency when working with domestic gas boilers and water heaters.

The course covers the essential knowledge and practical skills required for safe installation, testing, commissioning and maintenance of domestic heating appliances, including gas safety legislation, appliance positioning, flue requirements, ventilation and connection procedures.

Learners will develop their understanding of boiler and water heater safety checks, commissioning procedures, fault recognition and the correct processes required to ensure appliances operate safely and efficiently.

The qualification combines theoretical learning with practical assessment, allowing learners to demonstrate their ability to work safely and in accordance with current industry requirements.

This course is ideal for:

• Gas engineers looking to add CENWAT to their qualifications.
• Existing operatives renewing their CENWAT certification.
• Heating engineers working with domestic boilers and water heaters.
• Engineers expanding their range of domestic gas services.
• Gas professionals looking to develop specialist heating appliance skills.

CENWAT provides the specialist knowledge required to safely work on domestic gas boilers and water heaters, allowing engineers to expand their heating and gas engineering capabilities.

By completing this qualification you'll:

• Develop confidence working with domestic heating appliances.
• Understand boiler and water heater installation requirements.
• Learn safe commissioning and testing procedures.
• Expand the range of domestic gas work you can undertake.
• Support your ongoing professional development.

During the course you'll learn how to:

• Apply gas safety legislation when working on heating appliances.
• Install domestic boilers and water heaters safely.
• Understand appliance positioning and manufacturer requirements.
• Assess flue and ventilation requirements.
• Complete safe gas connections.
• Carry out boiler and water heater commissioning procedures.
• Perform gas safety and operational checks.
• Identify combustion issues and unsafe conditions.
• Follow correct procedures when faults are identified.

Your course includes:

• CENWAT Domestic Boilers and Water Heaters training.
• Tutor-led classroom learning.
• Practical installation and assessment.
• Gas safety procedures and guidance.
• Testing and commissioning practice.
• Written examination preparation.
• LCL Awards certification upon successful completion.

Candidates must hold a current CCN1 Core Domestic Gas Safety qualification before completing this appliance-specific module.

Learners should bring their current certificate and required documentation on the first day of training.

Assessment is completed through a combination of a written examination and practical assessment. Learners must demonstrate their knowledge of domestic boilers and water heaters, including their ability to safely install, test and commission appliances.

Successful completion of CENWAT allows gas engineers to expand the range of domestic heating appliances they are qualified to install, service and maintain.

This qualification can support work involving:

• Domestic boiler installation and servicing.
• Central heating system work.
• Water heater installation and maintenance.
• Domestic heating engineering roles.
• Further specialist heating qualifications.

Engineers can continue developing their skills through additional ACS modules and renewable heating qualifications.