Why Are Gas Hose Installation Methods Important? #

Flexible gas hose assemblies provide a safe method of connecting certain gas appliances when installed correctly.

However, incorrect installation can cause the hose to become damaged, kinked, stretched or disconnected, potentially resulting in a gas leak or creating a fire or explosion hazard.

For this reason, Australian gas installation standards prohibit several installation methods to help protect occupants and ensure appliances remain safe to use.

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What is a Gas Hose Assembly? #

A gas hose assembly is a certified flexible hose fitted with approved end connections that joins a gas appliance to the fixed consumer gas piping.

Gas hose assemblies are commonly used with:

• Freestanding gas cookers
• Certain commercial catering appliances
• Approved movable gas appliances
• Appliances designed to be disconnected for servicing

Only hose assemblies certified for the intended application should be used.

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Prohibited Installation Methods #

A gas hose assembly must not be installed:

Through a Wall #

A flexible gas hose must not pass through a wall.

Doing so may cause the hose to rub against building materials, become damaged over time, or prevent proper inspection.

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Through a Ceiling or Floor #

Gas hose assemblies must not pass through:

• Ceilings
• Floors
• Roof spaces

These locations may conceal damage and make future inspections difficult.

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Through a Doorway #

A hose assembly must not pass from one room to another through a doorway fitted with a closable door.

Closing the door can crush or damage the hose, increasing the risk of a gas leak.

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Through Appliance Panels #

A hose assembly must not pass through the casing or panel of a gas appliance unless the appliance has been specifically designed and certified for that installation method.

Improper routing may damage the hose and create a safety risk.

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Joined to Another Hose #

Two flexible gas hose assemblies must never be connected together.

Each installation should use a single certified hose assembly of the correct length.

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Other Installation Requirements #

A compliant gas hose assembly should:

• Hang freely without twisting.
• Be as short as practicable.
• Not be kinked or crushed.
• Not be under tension.
• Be protected from abrasion.
• Be positioned away from excessive heat.
• Be fitted with the appropriate restraint where required.

Correct installation helps maximise the service life of the hose while reducing the likelihood of failure.

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Common Issues Found During Gas Safety Inspections #

Our licensed gas fitters commonly identify:

• Kinked flexible hoses.
• Hoses rubbing against sharp edges.
• Hose assemblies under excessive tension.
• Incorrect hose routing.
• Damaged hose outer coverings.
• Flexible hoses passing through cabinetry or building materials.
• Missing appliance restraints.
• Unapproved hose installation methods.

Where defects are identified, recommendations are included in the inspection report.

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What We Check During a Gas Safety Inspection #

During an inspection of an accessible gas appliance, our technicians may assess:

• Condition of the hose assembly.
• Hose routing.
• Appliance restraint.
• Signs of wear or damage.
• Visible gas leaks.
• General installation safety.
• Compliance with applicable installation requirements.

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Why Professional Installation Matters #

Gas hose assemblies must be installed in accordance with:

• Australian Standards.
• Manufacturer installation instructions.
• Victorian gas safety requirements.

Improper installation can shorten the life of the hose and increase the risk of gas leaks.

For this reason, installation and replacement should only be carried out by a licensed gas fitter.

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Frequently Asked Questions #

Can a gas hose pass through a cupboard? #

It depends on the installation. A hose should remain visible where required, free from damage, and must not pass through walls, floors or other prohibited locations. A licensed gas fitter can determine whether an installation is compliant.

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Can two gas hoses be joined together? #

No. Gas hose assemblies must not be connected together. A single certified hose of the appropriate length should be used.

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Why can’t a hose pass through a doorway? #

A closing door may crush or damage the hose, creating a potential gas leak or fire hazard.

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Who can install or replace a gas hose assembly? #

Gas hose assemblies should only be installed or replaced by a licensed gas fitter.

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Extract from the AS-NZS-5601-1-2022 Australian gas regulations

Need a Gas Safety Inspection? #

Rental Safety Inspections provides professional gas safety inspections throughout Victoria.

Our licensed gas fitters inspect accessible gas appliances, flexible hose assemblies and gas installations to help landlords and property managers maintain safe and compliant rental properties.

Contact Rental Safety Inspections today to book your gas safety inspection.