Unvented Hot Water Course

If you are an engineer who needs to meet the requirements of the Building Regulations Approved Document G (section G3), this scheme is for you.  The regulations require that a hot water storage vessel with a capacity of more than 15 litres, which does not incorporate a vent pipe to atmosphere, should be installed, commissioned, inspected and serviced by a competent person. The unvented hot water identity card that is issued is recognised by Building Regulations Approved Document G (section G3) and accepted by Local Building Control as evidence of competence.

If you would like to arrange to meet with us to see our Gas Training facilities or to reserve your place on one of the courses please contact us.


Don’t worry, City of Glasgow College will let you know when your ACS gas certificate is going to expire. ACS Gas Certificates are valid for 5 years, on expiry candidates can undertake a re-assessment within 6 months of their certificate expiry date.

If you miss your renewal you could face:-

  • Removal from the Register.
  • Mandatory Attendance to a theory based Inspection event.
  • Application of a penalty fee.

Contact us and one of our team will be in touch to book you in.

Our longstanding clients have found dealing directly with the City of Glasgow College for managing the ACS certificates and arranging training has been quick and simple and has added a value to the service that we deliver.

Professional gas courses available at City:-

  • ACS Domestic Gas Safety Training Assessment and Re-assessment.
  • BPEC Diploma in Smart Metering.
  • SVQ Level 3 - Modern Apprenticeship in Domestic Natural Gas Installation and Maintenance.
  • Unvented Hot Water - Training & Assessment.