1, Understand the history of hot water supply in the United Kingdom and recognise the various forms of domestic hot water systems that are used in dwellings, small public buildings and small industrial and commercial premises.

2, Have an appreciation of the legal obligations relating to the safe installation and use of un-vented hot water systems.

3, Recognise the various types of un-vented hot water systems, understand their working principals, understand the reasons for controls and the dangers involved with incorrect installation.

4, Be able to identify the component parts that ensure the safe operation of un-vented water systems and to protect the system from excessive temperatures and pressures.

5, Understand the installation and commissioning requirements of un-vented hot water supplies including water supply, hot water demand sitting requirements and any other safety matters.
 

6, Understand the installation, commissioning and servicing requirements of un-vented hot water systems.
 

7, Be able to identify the causes of common faults on un-vented hot water systems and components and determine suitable corrective and preventative measures.

8, Understand the differences between vented and sealed heating systems and recognise their installation requirements.