Framework · Level 3
City & Guilds Level 3 Diploma in Gas Engineering (9074-03)
Areas are the units of the City & Guilds Level 3 Diploma in Gas Engineering (9074-03), qualification handbook version 3.5 (April 2026). Which units are mandatory depends on the pathway (A to E); see the handbook. Modules are mapped at unit level; each unit's learning outcomes and assessment criteria are in the handbook.
| Level 3 area | Modules | Artefacts |
|---|---|---|
| Unit 301 Health and safety in gas utilisation | ||
| Unit 302 Scientific principles in gas utilisation | ||
| Unit 303 Combustion and properties of gas | ||
| Unit 304 Buildings, services and structures | ||
| Unit 305 Gas safety principles | ||
| Unit 306 Specific core installation and maintenance | ||
| Unit 307 Tightness test, purge, commission and de-commission gas pipework up to 35 mm (1¼) in small gas installations | ||
| Unit 308 Install, commission and de-commission gas pipework up to 35 mm (1¼) in domestic and small commercial premises | ||
| Unit 309 Install domestic gas cookers, tumble dryers and leisure appliances | ||
| Unit 310 Maintain domestic gas cookers, tumble dryers and leisure appliances | ||
| Unit 311 Install domestic gas water heaters and wet central heating appliances | ||
| Unit 312 Maintain gas water heating and wet central heating appliances | ||
| Unit 313 Install domestic gas space heating appliances | ||
| Unit 314 Maintain domestic gas space heating appliances | ||
| Unit 315 Installation, commissioning and safety of domestic hot water systems (UK Building Regulations) | ||
| Unit 316 Central heating systems | ||
| Unit 317 Water Supply (Water Fittings) Regulations and Water Byelaws in the UK |