ERS G3 Unvented training - January 2026

If you live in Wales this course is funded by the PLA fund.

ERS G3 is a qualification for plumbers and heating engineers to become competent in the installation, servicing, and maintenance of unvented hot water storage systems, as required by Part G3 of the UK Building Regulations. The course covers system design, safety controls, installation, maintenance, fault diagnosis, and relevant regulations, culminating in both written and practical assessments. 

It is a requirement that this is completed before you can progress onto the OFT21 Heat Pump Course 

Those not living in Wales - G3 Unvented Hot Water: 1 Day for £225