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Unvented Hot Water Course

Course title – Hot Water Systems & Safety (Including Unvented hot water)
Course length – 1 day or 2 day option with 1 day home study prior to course starting
Qualification expiry – standard 5 years


The Unvented course certificate is recognised by competent person schemes approved to offer self certification under ADG enabling installers of unvented systems to self certify their work.

This course is aimed at persons with plumbing or heating skills who require certification in the installation, servicing & maintenance of domestic hot water systems and covers systems up to 500 litres capacity and 45kw power input.

Learner outcomes:

You will be trained and assessed in the following areas.

  • Health & Safety
  • Regulations
  • Principles of storage
  • Design Considerations
  • Components and function
  • Safety controls, discharge and integration
  • Installation of HW systems
  • Expansion theory relating to hot water
  • Unvented Hot water systems
  • Servicing and maintenance of unvented systems


It is helpful that you have experience in domestic cold & hot water systems and hold either a plumbing level 2 and a Gas or oil qualification plus a basic knowledge of the WRAS water fittings regulations.

It would be advantageous to download the Part G building regulations document which is free from the following link here.


Assessment is undertaken using a variety of methods which include multiple choice, short written answers and an observed practical task.

Cost:  £210 Incl for 1 day or £350 for the 2 day option. Note the extra day is for more practical work


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