Loading Events

« All Events

  • This event has passed.

Hot Water Systems and Safety (Incl. Unvented)

08/08/2018 @ 09:00 - 16:30

Cost:  £195+Vat
Title Content type
Sector: Plumbing


Code: HWSS
Expiry: 5 years
Guided Learning Hours: 1-2 days (including home study of Approved Document G)
Background: The hot water systems and safety course is aimed at experienced plumbing and heating operatives who require a qualification in the installation, servicing and maintenance of domestic hot water systems. HWSS has been developed to ensure operatives comply with Approved Document G (ADG) 2010 when carrying out work on hot water systems. Training includes requirements for the installation of G3 Unvented Hot Water Systems and covers systems up to 500 litres capacity and 45kW power input.

The Hot Water Systems and Safety certificate is recognised by those Competent Person Schemes (CPS) approved to offer a self-certification scheme under ADG, enabling installers of hot water systems (including Unvented HWS) to self-certify the installation. A certificate in Hot Water Systems and Safety is also required by the Microgeneration Certification Scheme (MCS) registration bodies for those looking to be recognised for the installation of Solar Thermal Hot Water Systems.

Learners will: Be trained and assessed in the following areas:

  • Regulations, standards and guidelines
  • Theory of understanding of expansion of hot water (HW)
  • Principles of HW storage
  • Design considerations
  • Components and function
  • Safety controls, discharge and integration
  • Installation of HW systems
  • Maintenance and servicing of HW systems including
  • Unvented HWS
  • Health and safety considerations
Pre-requisites: It is essential that HWSS candidates will be experienced in the installation of domestic cold and hot water systems. It is also essential that they hold one DCLG recognised competency in a conventional fuel i.e. gas, oil or solid fuel; or for those in the plumbing field an NVQ level 2 or equivalent plumbing qualification or experience. A basic knowledge of the WRAS Water (fittings) Regulations is desirable although this course is available separately. Candidates undertaking the course should also be conversant with the new Part G document which can be downloaded from the following link: Part G Building Document 2010
Assessment method:
Related qualifications:
Related downloads:
Related links and support material:


09:00 - 16:30


Hayley Corney
07810 305 784


Narec Distributed Energy
4 Ballast Hill, Blyth
Northumberland, Tyne and Wear NE24 2AU United Kingdom
+ Google Map
01670 357638