Product Overview

Summary: This Safe Operating Procedure sets out a clear, step-by-step method for the safe installation of heating systems in Australian workplaces and commercial premises. It helps businesses control key WHS risks, meet regulatory obligations, and deliver consistent, high‑quality installations across projects and sites.

Installing heating systems – whether gas, electric, hydronic or reverse-cycle – involves a complex interaction of electrical work, gas fitting, plumbing, working at heights, and confined space tasks. Each of these activities carries its own set of WHS risks, from electric shock and gas leaks to burns, manual handling strains and fire hazards. This Installation of Heating Systems Safe Operating Procedure provides a structured, defensible approach so your team can complete installations safely, efficiently and in line with Australian regulations and best practice.

The SOP guides workers through pre‑installation planning, site assessment, isolation and lock-out of services, equipment and material checks, safe installation techniques, commissioning, and handover. It embeds WHS risk controls directly into each stage of the job, so safety is not an afterthought but part of how the work is done. For business owners, principal contractors and facility managers, this document helps standardise installation quality across teams and subcontractors, reduces the likelihood of rework or warranty issues, and demonstrates due diligence under Australian WHS law. It is particularly valuable for organisations managing multiple sites or engaging different trades, where a consistent, documented method of work is critical.

Key Benefits

• Ensure heating system installations are carried out in accordance with Australian WHS legislation, gas and electrical safety requirements.
• Reduce the risk of incidents such as gas leaks, electric shock, fire, burns and manual handling injuries during installation and commissioning.
• Standardise installation practices across employees and subcontractors, improving quality, consistency and client confidence.
• Streamline training and onboarding by providing a clear, step-by-step reference for new and existing workers.
• Demonstrate due diligence to regulators, insurers and clients through a documented, risk-based approach to heating system installation.

Who is this for?

• HVAC Installers
• Plumbers and Gas Fitters
• Electrical Contractors
• Site Supervisors
• Project Managers
• WHS Managers
• Facilities Managers
• Construction Forepersons
• Maintenance Team Leaders
• Compliance and Quality Managers

Hazards Addressed

• Electric shock and arc flash from live or incorrectly isolated electrical circuits
• Gas leaks, explosion and fire from improper gas connections or testing
• Burns from hot surfaces, hot water and steam during commissioning or testing
• Exposure to combustion products, fumes and poor ventilation during installation or initial start-up
• Falls from height when installing rooftop units, flues or ceiling-mounted equipment
• Slips, trips and falls around work areas, roof spaces, plant rooms and service risers
• Manual handling injuries from lifting, carrying and positioning heavy plant and components
• Cut injuries from sharp metal ductwork, sheet metal and tools
• Confined space risks in roof cavities, ceiling voids, crawl spaces and plant rooms
• Noise exposure from power tools and equipment during installation
• Property damage and fire risk from incorrect clearances to combustibles or inadequate flueing

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and System Types (Gas, Electric, Hydronic, Reverse‑Cycle)
• 3.0 Roles, Responsibilities and Competency Requirements
• 4.0 Applicable Legislation, Standards and Codes of Practice
• 5.0 Pre‑Installation Planning and Site Assessment
• 6.0 Risk Assessment, Permits and Isolation (LOTO) Requirements
• 7.0 Required Tools, Equipment and Materials
• 8.0 Personal Protective Equipment (PPE) Requirements
• 9.0 Safe Work Method – Preparation of Work Area
• 10.0 Safe Work Method – Installation of Heating Units and Components
• 11.0 Safe Work Method – Electrical Connections and Controls
• 12.0 Safe Work Method – Gas Connections, Purging and Leak Testing
• 13.0 Safe Work Method – Ductwork, Pipework and Flue/Chimney Installation
• 14.0 Working at Heights and Roof Access Controls
• 15.0 Confined Space and Roof Void Entry Requirements (if applicable)
• 16.0 Commissioning, Testing and Verification Procedures
• 17.0 Handover, Documentation and Client Instruction
• 18.0 Emergency Procedures (Gas Leak, Fire, Electric Shock, Injury)
• 19.0 Environmental Considerations and Waste Management
• 20.0 Inspection, Maintenance and Post‑Installation Review
• 21.0 Training, Induction and Competency Records
• 22.0 Document Control and Review

Legislation & References

• Work Health and Safety Act 2011 (Cth) and corresponding state and territory WHS Acts
• Work Health and Safety Regulations 2011 (Cth) and corresponding state and territory WHS Regulations
• AS/NZS 5601.1: Gas installations – General installations
• AS/NZS 3000: Electrical installations (Australian/New Zealand Wiring Rules)
• AS 4575: Gas appliances – Servicing of Type A gas appliances (relevant to commissioning and safety checks)
• AS 1668.2: The use of ventilation and air conditioning in buildings – Mechanical ventilation in buildings
• AS/NZS 5149 (series): Refrigerating systems and heat pumps – Safety and environmental requirements (for heat pump and reverse-cycle systems)
• Safe Work Australia – Model Code of Practice: Managing the risk of falls at workplaces
• Safe Work Australia – Model Code of Practice: Hazardous manual tasks
• Safe Work Australia – Model Code of Practice: Confined spaces
• Safe Work Australia – Model Code of Practice: Managing electrical risks in the workplace