City & Guilds
Level 3
QN: 600/0918/4
Curriculum Active
City & Guilds Level 3 Diploma in Gas Utilisation Installation and Maintenance: Water Heating and Wet Central Heating
Official qualification regulated by Ofqual, awarded by City & Guilds. Classified as a Occupational Qualification. Total guided learning hours: 1526 hours.
Qualification Level
Level 3
Awarding Body
City & Guilds
Syllabus Units
20 Units
Guided Hours
1526 hrs
Instant access to interactive lessons, quizzes, and spaced revision.
Course Syllabus & Study Modules
Complete breakdown of verified curriculum topics and learning objectives.
1
Install and Maintain domestic heating systems
Verified
Key Learning Objectives:
- Be able to prepare sites for the installation of domestic heating and hot water systems and components in the workplace
- Be able to install domestic heating and hot water systems and components in the workplace
- Be able to soundness test domestic heating and hot water systems and components in the workplace
- Be able to de
- commission domestic heating and hot water systems in the workplace
- Be able to maintain domestic heating and hot water components in the workplace
2
Install domestic gas water heaters and wet central heating appliances
Verified
Key Learning Objectives:
- Design gas systems for installing domestic gas water heaters and wet central heating appliances
- Plan and prepare work activities for installing domestic gas water heaters and wet central heating appliances, De-commission domestic gas water heaters and wet central heating appliances
- Install, exchange, and remove domestic gas water heaters and wet central heating appliances, Pre-commission and Commission domestic gas water heaters and wet central heating appliances
- Use and communicate data and information to carry out de-commissioning, installation and commissioning work, Re
- solve problems which could affect the de-commissioning, installation and commissioning process, Installing, commissioning and de-commissioning domestic gas water heaters and wet central heating appliances
3
Install, commission and de-commission gas pipework up to 35mm 1¼ diameter in domestic and small commercial premises
Verified
Key Learning Objectives:
- Design gas systems for installing gas pipe
- Plan and prepare work activities for installing domestic gas cookers, tumble dryers and leisure appliances, De-commission domestic gas pipe
- work to industry standards
- Install, exchange, and remove gas pipe
- work to industry standards, Pre-commission and Commission gas pipe
- Use and communicate data and information to carry out de-commissioning, installation and commissioning work, Re
- solve problems which could affect the de-commissioning, installation and commissioning process
- commission and de-commission gas pipe
- work up to 35mm (1¼) diameter in domestic and small commercial premises
4
Install, commission, service and maintain domestic heating systems
Verified
Key Learning Objectives:
- Be able to select domestic heating and hot water systems and components for application in the workplace
- Be able to prepare work sites for the installation of domestic heating and hot water systems and components in the workplace
- Be able to install domestic heating and hot water systems and components in the workplace
- Be able to commission domestic heating and hot water systems in the workplace
- Be able to diagnose faults in domestic heating and hot water components in the workplace
- Be able to rectify faults in domestic heating and hot water components in the workplace
5
Maintain gas water heating and wet central heating appliances
Verified
Key Learning Objectives:
- Plan and prepare work activities for maintaining water heating and wet central heating appliances, De-commission water heating and wet central heating appliances to industry standards
- Maintain domestic water heating and wet central heating appliances to industry standards, Pre-commission and Commission water heating and wet central heating appliances to industry standards
- Use and communicate data and information to carry out de-commissioning, maintenance and commissioning work, Re
- solve problems which could affect the de-commissioning, maintenance and commissioning process
- Maintain water heating and wet central heating appliances
6
Specific Core Installation & Maintenance
Verified
Key Learning Objectives:
- Demonstrate the use of common tools used in the gas utilisation industry
- Demonstrate that gas safety controls are operating correctly and explain the actions required when unsafe or ineffective operation is found
- Know the construction and operation of chimneys used for domestic gas appliances
- Demonstrate how to carry out chimney performance checks
- Identify and complete the correct notices, forms and labels used in domestic gas utilisation
- Demonstrate how to work correctly and safely with electrical systems and components used in domestic gas utilisation
- Demonstrate the correct use of combustion and atmosphere sampling analysers
- Demonstrate safe lifting and handling techniques when moving equipment, materials and appliances associated with gas utilisation activities
- Demonstrate the safe use of steps and ladders used in domestic gas utilisation activities
- Demonstrate selection and use of correct Personal Protective Equipment (PPE) for domestic gas utilisation activities
- Install and commission a small domestic gas installation
- Calculate the requirements for permanent ventilation in domestic gas utilisation environments
7
Tightness test, purge, commission and de-commission gas pipework up to 35mm 1¼ diameter in small natural gas installations.
Verified
Key Learning Objectives:
- Plan and prepare work activities for tightness testing and direct purging, De-commission gas systems and components to industry standards, Tightness testing and direct purging of gas systems and components
- Use and communicate data and information to carry out de-commissioning, tightness testing and direct purging, Re
- solve problems which could affect de-commissioning, tightness testing and direct purging
- Understand how to tightness test, purge
- commission and de-commission gas pipe
- work up to 35mm 1¼ diameter in small natural gas installations
8
Understand and apply domestic central heating system installation and maintenance techniques
Verified
Key Learning Objectives:
- Know the uses of central heating systems in dwellings
- Know the types of central heating system and their layout requirements
- Know the site preparation techniques for central heating systems and components
- Be able to apply site preparation techniques for central heating systems and components
- Know the installation requirements of central heating systems and components
- Be able to install central heating systems and components
- Know the service and maintenance requirements of central heating systems and components
- Be able to service and maintain central heating systems and components
- Know the decommissioning requirements of central heating systems and components
- Be able to de
- commission central heating systems and components
- Know the inspection and soundness testing requirements of central heating systems and components
- Be able to inspect and soundness test central heating systems and components
9
Understand and apply domestic central heating system installation, commissioning, service and maintenance techniques
Verified
Key Learning Objectives:
- Know the types of central heating system and their layout requirements
- Know the design techniques for central heating systems
- Be able to apply design techniques for central heating systems
- Know the installation requirements of central heating systems and components
- Be able to install central heating systems and components
- Know the fault diagnosis and rectification procedures for central heating systems and components
- Be able to diagnose and rectify faults in central heating systems and components
- Know the commissioning requirements of central heating systems and components
- Be able to commission central heating systems and components
10
Understand and apply domestic cold water system installation and maintenance techniques
Verified
Key Learning Objectives:
- Know the cold water supply route to dwellings
- Know the types of cold water system and their layout requirements
- Know the site preparation techniques for cold water systems and components
- Be able to apply site preparation techniques for cold water systems and components
- Know the installation requirements of cold water systems and components
- Be able to install cold water systems and components
- Know the service and maintenance requirements of cold water systems and components
- Be able to service and maintain cold water systems and components
- Know the decommissioning requirements of cold water systems and components
- Be able to de
- commission cold water systems and components
- Know the inspection and soundness testing requirements of cold water systems and components
- Be able to inspect and soundness test cold water systems and components
11
Understand and apply domestic cold water system installation, commissioning, service and maintenance techniques
Verified
Key Learning Objectives:
- Know the legislation relating to the installation and maintenance of cold water supplied for domestic purposes
- Know the types of cold water system layout used in multi-storey dwellings
- Know the types of cold water system layout used with single occupancy dwellings fed by private water supplies
- Know the requirements for backflow protection in plumbing systems
- Know the uses of specialist components in cold water systems
- Know the design techniques for cold water systems
- Be able to apply design techniques for cold water systems
- Know the fault diagnosis and rectification procedures for cold water systems and components
- Be able to diagnose and rectify faults in cold water systems and components
- Know the commissioning requirements of cold water systems and components
- Be able to commission cold water systems and components
12
Understand and apply domestic hot water system installation and maintenance techniques
Verified
Key Learning Objectives:
- Know the types of hot water system and their layout requirements
- Know the site preparation techniques for hot water systems and components
- Be able to apply site preparation techniques for hot water systems and components
- Know the installation requirements of hot water systems and components
- Be able to install hot water systems and components
- Know the service and maintenance requirements of hot water systems and components
- Be able to service and maintain hot water systems and components
- Know the decommissioning requirements of hot water systems and components
- Be able to de
- commission hot water systems and components
- Know the inspection and soundness testing requirements of hot water systems and components
- Be able to inspect and soundness test hot water systems and components
13
Understand and apply domestic hot water system installation, commissioning, service and maintenance techniques
Verified
Key Learning Objectives:
- Know the types of hot water system and their layout requirements
- Know the uses of specialist components in hot water systems
- Know the design techniques for hot water systems
- Be able to apply design techniques for hot water systems
- Know the installation requirements of hot water systems and components
- Be able to install hot water systems and components
- Know the fault diagnosis and rectification procedures for hot water systems and components
- Be able to diagnose and rectify faults in hot water systems and components
- Know the commissioning requirements of hot water systems and components
- Be able to commission hot water systems and components
14
Understand and carry out electrical work on domestic plumbing and heating systems and components
Verified
Key Learning Objectives:
- Know the electrical standards that apply to the mechanical services industry
- Know the principles of electricity supply to dwellings
- Know the layout features of electrical circuits in dwellings
- Understand the electrical industry safe isolation procedure
- Be able to carry out the electrical industry safe isolation procedure
- Know the site preparation techniques for the electrical connection of mechanical services components in dwellings
- Be able to apply site preparation techniques for the electrical connection of mechanical services components in dwellings
- Understand the installation and connection requirements of electrically operated mechanical services components
- Be able to install and connect electrically operated mechanical services components
- Know the inspection and testing requirements of electrically operated mechanical services components
- Be able to inspect and test electrically operated mechanical services components
- Know the procedures for safely diagnosing and rectifying faults in electrically operated mechanical services components
- Be able to safely diagnose and rectify faults in electrically operated mechanical services components
15
Understanding Buildings, Services and Structures
Verified
Key Learning Objectives:
- Know the types and characteristics of construction materials
- Know the construction methods of buildings and how to read and interpret plans
- Know how to use hand and power tools within gas utilisation
- Know the installation requirements methods and materials for gas pipe
- work (NG&LPG)
- Know the ventilation requirements, types and methods
- Know the different types and operation of suitable chimney systems for gas appliances
- Know the methods for checking and testing chimney performance
16
Understanding Combustion and Properties of Gas
Verified
Key Learning Objectives:
- Know the natural gas supply net
- work and LPG supplies
- Know the operation pressure regulators
- Know the factors affecting pressure loss and the equipment used to measure gas pressure
- Understand the combustion of gases, and potential risks
- Know gas burner operation, design, features and types
- Know the properties and Characteristics of NG and LPG
17
Understanding Gas Safety
Verified
Key Learning Objectives:
- Know industry specific legislation and standards
- Know gas safety legislation
- Know the gas emergency actions, responsibilities and procedures relevant to the industry
- Know the Gas Industry Unsafe Situations Procedure
- Know the gas operatives responsibilities in accurately completing emergency notices, warning labels and forms
- Know the correct installation locations and types of Emergency Control and Appliance Isolation Valves
- Know and understand the requirements for Natural Gas and LPG meter installations up to .035cu mtrs
- Know the types of gas meter housings and compartments and the requirements for installation and labelling
- Know the methods and requirements to tightness test and purge small gas installations.(NG and LPG)
- Know how to check and set gas installation operating pressures at gas meters and LPG regulators
- Know how to safely assess the potential risks, tightness test and re-light temporarily isolated appliances
- Know how to check and set appliance burner pressures and compare measured gas rates with published figures
- Know the principles of operation and methods of testing gas appliance safety controls
- Know how to safely work in customers premises and liaise with clients regarding the progress of the job
- Know where to acquire information and documentation used during their daily work activities
- Know the regulations in force to protect the environment and control waste
18
Understanding Health and Safety in Gas Utilisation
Verified
Key Learning Objectives:
- Know the Health and Safety legislation
- Know the health and safety measures for gas utilisation
- Know the regulations covering the use and disposal of hazardous substances
- Know manual handling methodology and lifting techniques
- Know how to identify and respond to accidents which occur at work
- Know the requirements for maintaining electrical safety, earthing protection systems and associated dangers
- Know Fire safety
- Know the safety requirements for working at heights
- Know how to work safety in confined spaces
19
Understanding Scientific Principles in Gas Utilisation
Verified
Key Learning Objectives:
- Know the Systeme Internationale (SI) units and uses within gas utilisation
- Know the sources of energy and heat transfer
- Know the combined gas laws
- Know energy efficiency legislation
20
Water Compulsory Core Unit
Verified
Key Learning Objectives:
- Know the energy conservation legislation that applies to the building services industry
- Know the applications of energy sources used in the building services industry
- Know the importance of energy conservation when commissioning building services systems
- Know the methods of reducing waste and conserving energy while working in the building services industry
- Know how to safely dispose of materials used in the building services industry
- Know the methods of conserving and reducing wastage of water within the building services industry
- Know the principles of plumbing science and how to apply them in the workplace
- Know plumbing processes and how to apply them in the workplace
Regulatory & Verification Details
- Qualification Number (QN)
- 600/0918/4
- Regulated Status
- Available to learners
- Awarding Body
- City & Guilds
- Qualification Type
- Occupational Qualification
- Operational Start
- Mar 2011
- Operational End
- Aug 2026