Vulcan 135L Natural Gas Storage Hot Water System

The Vulcan 135L Natural Gas Storage Hot Water System is available from Installed Today as a supply-only natural gas storage hot water unit or as a complete supply and install package in selected Brisbane and Gold Coast service areas, where available.

Choose the unit only if you already have a licensed gas fitter arranged, or check your supply and install package before checkout to confirm natural gas suitability, gas supply requirements, valve kit requirements, access, water pressure, outdoor location and available installation timeframes.

The Vulcan 135L Natural Gas storage water heater is a 4 Star gas storage system designed for small to medium households that want stored hot water with quick gas recovery. With 135L storage capacity, outdoor-only installation and a natural gas model available, it is a practical replacement option for homes connected to mains natural gas.

About the Vulcan 135L Natural Gas Water Heater

The Vulcan 135L Natural Gas Water Heater stores hot water in a vitreous enamel lined cylinder and uses natural gas to reheat the stored water.

Unlike continuous flow gas hot water, a gas storage system keeps a volume of hot water ready for use. This can suit homes that prefer a traditional storage-style hot water system and are replacing an older external natural gas storage unit.

This page is for the natural gas model, not the LPG / propane model. Natural gas and LPG units are not interchangeable, so the correct gas type must be selected before purchase and installation.

Buy Vulcan 135L Natural Gas Supply Only

Buy the Vulcan 135L Natural Gas supply only if you already have a licensed plumber and gas fitter arranged for installation.

The product price is for the unit only. Installation, valve kits, old system removal, disposal, gas fitting changes, pipework changes, pressure control, bases, trim kits, access work and compliance upgrades are not included unless selected separately as add-ons or part of an available install package.

Common search terms this product suits include:

• Vulcan 135L natural gas water heater price

• Vulcan 135L natural gas hot water system

• Vulcan 648135NG gas water heater

• 135L natural gas storage hot water system

• Natural gas storage hot water replacement

• Outdoor natural gas hot water system

• 4 Star natural gas storage water heater

• Vulcan 135L supply only

Vulcan 135L Natural Gas Supplied and Installed in Brisbane & Gold Coast

The Vulcan 135L Natural Gas Storage Hot Water System can be ordered with a supply and install option in selected Brisbane and Gold Coast service areas, where available.

The installed-from price is based on the product plus the selected standard installation option. Final pricing can vary depending on site conditions and any selected add-ons.

Extra work or add-ons may be required for:

• Valve kit replacement

• Old system removal

• Disposal

• Natural gas pipe sizing changes

• Gas meter or supply suitability checks

• Pipework changes

• Water pressure control

• Base or stand requirements

• Trim kit requirements

• Restricted access

• Relocation from the existing hot water position

• Non-compliant existing installation

• Outdoor clearance issues

• Delivery access or lifting requirements

Vulcan 135L Natural Gas Installation in Brisbane

Installed Today can help Brisbane customers order the Vulcan 135L Natural Gas as either a supply-only gas storage water heater or a supplied and installed package in selected service areas.

This model may suit Brisbane homes replacing an older natural gas storage hot water system, especially where the existing unit is already externally installed and the property has suitable mains natural gas available.

Before installation, the site should be checked for gas type, gas meter suitability, gas pipe sizing, water pressure, valve condition, pipework, base condition, outdoor clearances, access and compliance requirements.

Vulcan 135L Natural Gas Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Vulcan 135L Natural Gas for supply only or supply and install where available.

This system may suit coastal homes, rental properties, small to medium households and natural gas-connected properties needing an outdoor gas storage hot water replacement. Final installation suitability depends on the existing natural gas setup, water pressure, access, base condition, pipework and whether any additional parts or labour are required.

Is the Vulcan 135L Natural Gas Right for Your Home?

This system may suit you if:

• You want a 135L natural gas storage hot water system

• You are replacing an existing external natural gas storage water heater

• Your property is connected to mains natural gas

• You want a 4 Star gas storage water heater

• Your household has small to medium hot water demand

• You want stored hot water with gas recovery

• You want an outdoor-only gas storage system

• You have suitable access, water pressure, natural gas supply and outdoor installation space

• You want the choice of supply only or supply and install

Extra work may be required if:

• The existing system is LPG, not natural gas

• The system is being moved to a new location

• Existing valves are old, missing or non-compliant

• Natural gas pipe sizing or meter suitability needs checking

• Water pressure control is required

• The existing base is damaged or unsuitable

• Pipework changes are required

• Access is restricted

• The old system needs removal or disposal

• The installation position does not meet outdoor clearance requirements

• The household needs more hot water capacity than a 135L storage unit can provide

Key Features of the Vulcan 135L Natural Gas

• 135L natural gas storage hot water system

• Standard Vulcan gas storage water heater range

• Natural gas model

• Product code: 648135NG

• 135L storage capacity

• 4 Star gas energy rating

• Suitable for small to medium households

• Vulcan lists maximum 5 people based on stated usage conditions

• Outdoor installation only

• Quick recovery gas storage design

• Vitreous enamel lined cylinder

• 7 year cylinder warranty listed by Vulcan

• 12 month parts and labour warranty listed by Vulcan

• Relief valve setting of 1400 kPa

• ECV setting of 1200 kPa

• Maximum supply pressure of 960 kPa with expansion control valve

• Maximum supply pressure of 1120 kPa without expansion control valve

• Natural gas hourly gas consumption of 27 MJ

• Natural gas minimum gas pressure of 1.13 kPa

• Natural gas test point gas pressure of 1.00 kPa

• Natural gas maximum gas pressure of 3.50 kPa

• Rp 3/4 left hand water connections

• Rp 1/2 gas connection

• 1568 mm high x 422 mm wide x 502 mm deep

• Approximate weight of 62 kg listed by Reece

• Optional trim kit listed by Vulcan

Quick Specs

Brand: Vulcan
Range: Standard Vulcan Gas Storage
Product: Vulcan 135L Natural Gas Water Heater
Product Code: 648135NG
System Type: Gas storage hot water
Gas Type: Natural Gas
Storage Capacity: 135L
Recommended Household Size: Small to medium households, up to 5 people based on stated usage conditions
Installation Type: Outdoor installation only
Gas Energy Rating: 4 Star
Cylinder Type: Vitreous enamel lined cylinder
Relief Valve Setting: 1400 kPa
ECV Setting: 1200 kPa
Maximum Supply Pressure with ECV: 960 kPa
Maximum Supply Pressure without ECV: 1120 kPa
Hourly Gas Consumption: 27 MJ natural gas
Minimum Natural Gas Pressure: 1.13 kPa
Natural Gas Test Point Pressure: 1.00 kPa
Maximum Natural Gas Pressure: 3.50 kPa
Water Connections: Rp 3/4 left hand
Gas Connection: Rp 1/2
Dimensions: 1568 mm high x 422 mm wide x 502 mm deep
Approximate Weight: 62 kg listed by Reece
Trim Kit: FK1356 listed by Vulcan
Warranty: 7 year cylinder warranty and 12 month parts and labour warranty listed by Vulcan, subject to current warranty terms

Natural Gas Storage Hot Water

The Vulcan 135L Natural Gas model is designed for homes connected to mains natural gas. It can suit properties already using natural gas for hot water, homes replacing an older gas storage system and locations where a traditional external storage unit is preferred.

Because this is the natural gas model, it must be matched to a suitable natural gas supply. Natural gas and LPG appliances are not interchangeable. The gas type should be checked before ordering and confirmed by a licensed gas fitter before installation.

135L Storage Capacity

The Vulcan 135L Natural Gas stores 135L of hot water. This gives the household a stored volume of hot water ready for use, with gas recovery to reheat the cylinder after hot water is drawn.

Vulcan lists the 135L gas storage model as suitable for small to medium households, with a maximum of 5 people based on stated shower and climate assumptions. Real suitability depends on shower duration, water temperature, climate, outlet flow rates, bath use, laundry demand and household routines.

4 Star Gas Energy Rating

The Vulcan 135L Natural Gas has a 4 Star gas energy rating.

Gas storage water heaters are commonly selected where a home already has a gas storage system installed and the customer wants a practical replacement. Running costs depend on hot water usage, natural gas pricing, thermostat settings, recovery demand, location and installation condition.

Vitreous Enamel Lined Cylinder

The Vulcan 135L Natural Gas uses a vitreous enamel lined cylinder. This lining helps protect the inside of the tank and supports long-term gas storage hot water performance when the system is installed and maintained correctly.

Water quality, pressure control, correct valve selection and compliant installation all play an important role in the service life of any storage water heater.

Outdoor Installation Only

The Vulcan 135L Natural Gas storage water heater is suitable for outdoor installation only.

It should not be installed indoors. Outdoor gas storage systems must be installed with suitable clearances, ventilation, flue terminal positioning, base support, access, water connections, gas connection and compliance requirements.

Natural Gas Supply Requirements

The Vulcan 135L Natural Gas has a listed natural gas hourly gas consumption of 27 MJ, minimum gas pressure of 1.13 kPa, test point gas pressure of 1.00 kPa and maximum gas pressure of 3.50 kPa.

A licensed gas fitter should confirm gas meter suitability, gas pipe sizing, appliance location and compliance requirements before installation.

Water Pressure Requirements

The Vulcan 135L Natural Gas has a relief valve setting of 1400 kPa, ECV setting of 1200 kPa, maximum supply pressure of 960 kPa with an expansion control valve and maximum supply pressure of 1120 kPa without an expansion control valve.

If incoming water pressure is too high, pressure control may be required. Valve requirements should be checked before installation, especially when replacing older units where existing valves may be worn, missing or non-compliant.

Left Handed Water Connections

The Vulcan 135L gas storage model uses Rp 3/4 left hand water connections.

Connection position matters for replacement work because the existing pipework can affect installation time, parts required and whether pipework changes are needed. The supplied model and existing pipework should be checked before installation.

Trim Kit Option

Vulcan lists a trim kit for the 135L gas storage model.

A trim kit may be useful in some installations depending on the existing setup and finish required. Trim kits are not included unless selected separately.

Vulcan 135L Natural Gas vs LPG Model

The Vulcan 135L gas storage range includes natural gas and LPG / propane model options.

The natural gas model is for properties connected to mains natural gas. The LPG model is for properties using LPG. These models are not interchangeable, so the correct gas type must be selected before ordering.

Vulcan 135L Natural Gas vs Continuous Flow Natural Gas

The Vulcan 135L Natural Gas stores hot water in a tank, while a natural gas continuous flow system heats water as it passes through the unit.

A gas storage system may suit customers replacing an existing gas storage unit and wanting a familiar storage-style setup. A continuous flow system may suit customers wanting a compact wall-mounted unit with on-demand heating, but it must be correctly sized for flow rate, fixture use and gas supply.

The best option depends on the existing system, household usage, gas supply, available space, hot water demand and installation requirements.

Vulcan 135L Natural Gas vs Electric Storage

A Vulcan 135L Natural Gas storage system uses natural gas for heating, while an electric storage system uses an electric element.

Natural gas storage may suit properties already connected to mains gas and replacing an existing gas storage unit. Electric storage may suit homes without gas supply or where electrical replacement is simpler. Site conditions, running costs, energy source, compliance requirements and installation costs should all be considered.

Common Uses

• Natural gas storage hot water replacement

• External gas storage water heater replacement

• Small to medium households

• Homes connected to mains natural gas

• Rental properties

• Investment properties

• Renovation projects

• Properties replacing an existing Vulcan 135L natural gas system

• Homes wanting stored hot water with gas recovery

• Outdoor installations with suitable base and clearances

• Supply-only orders where a licensed installer is already arranged

• Supply and install orders in selected Brisbane and Gold Coast areas

Suitability depends on household size, hot water usage, natural gas supply, gas pipe sizing, installation location, plumbing condition, water pressure, access, base condition and compliance requirements.

Why Order From Installed Today?

Installed Today makes it easier to order the Vulcan 135L Natural Gas as either a supply-only product or a supplied and installed package where available.

You can choose the unit only if you already have a licensed plumber and gas fitter arranged, or select an installation option in eligible Brisbane and Gold Coast service areas. Valve kits and installation add-ons can be selected online where required, helping you build a clearer product and installation pathway before checkout.

Benefits of ordering from Installed Today include:

• Supply-only or supply and install options

• Brisbane and Gold Coast service area support

• Installed-from pricing shown separately from the product price

• Compatibility checks before installation

• Product-specific information to help compare gas types and system styles

• Optional add-ons available where suitable

• Clear separation between unit price, installation and extras

• Suitable for customers with their own licensed installer

Frequently Asked Questions

Can I buy the Vulcan 135L Natural Gas supply only?

Yes. You can buy the Vulcan 135L Natural Gas as a supply-only unit if you already have a licensed plumber and gas fitter arranged.

Can I get the Vulcan 135L Natural Gas installed in Brisbane?

Yes, supply and install may be available in selected Brisbane service areas, depending on location, access, site conditions and installation availability.

Can I get the Vulcan 135L Natural Gas installed in Gold Coast?

Yes, supply and install may be available in selected Gold Coast service areas, subject to service coverage, site suitability and installation availability.

Is installation included in the product price?

No. The product price is for the unit only unless you select an installed option. Installation, valve kits, disposal, old system removal, gas fitting changes, pipework changes and other extras are not included unless selected separately.

What gas type is this model?

This page is for the natural gas version of the Vulcan 135L gas storage water heater.

Can the natural gas model be used on LPG?

No. Natural gas and LPG models are not interchangeable. The correct gas type must be selected before ordering and installation.

What is the natural gas product code?

The natural gas model is commonly listed as 648135NG.

What size is the Vulcan 135L Natural Gas?

The Vulcan 135L Natural Gas has 135L storage capacity.

How many people is the Vulcan 135L Natural Gas suitable for?

Vulcan lists the 135L gas storage model as suitable for up to 5 people based on stated usage conditions. Real suitability depends on shower length, climate, hot water temperature, outlet flow rates and household usage patterns.

What is the gas energy rating?

The Vulcan 135L Natural Gas has a 4 Star gas energy rating.

Can it be installed indoors?

No. The Vulcan 135L gas storage water heater is listed as suitable for outdoor installation only.

Can it be installed outdoors?

Yes. The Vulcan 135L Natural Gas is designed for outdoor installation only, subject to correct clearances, base support, access, plumbing, gas and compliance requirements.

What is the hourly natural gas consumption?

The listed natural gas hourly gas consumption is 27 MJ.

What are the natural gas pressure details?

The listed natural gas minimum gas pressure is 1.13 kPa, test point gas pressure is 1.00 kPa and maximum gas pressure is 3.50 kPa.

What are the water pressure settings?

The listed relief valve setting is 1400 kPa, ECV setting is 1200 kPa, maximum supply pressure with ECV is 960 kPa and maximum supply pressure without ECV is 1120 kPa.

What are the dimensions?

The listed dimensions are 1568 mm high x 422 mm wide x 502 mm deep.

What are the water connections?

The listed water connections are Rp 3/4 left hand.

What is the gas connection size?

The listed gas connection is Rp 1/2.

Is it suitable for replacing an old natural gas storage water heater?

Yes, it may be suitable for like-for-like replacement of an older external natural gas storage water heater, provided the location, gas supply, water pressure, base, connections and compliance requirements are suitable.

What is the difference between natural gas and LPG?

Natural gas is supplied through a mains gas connection, while LPG is commonly supplied through gas bottles or LPG storage. Appliances are made for a specific gas type and must not be treated as interchangeable.

What is the warranty?

Vulcan lists a 7 year cylinder warranty and 12 month parts and labour warranty, subject to current warranty terms. Warranty details should be checked before purchase because warranty terms can depend on model, installation and manufacturer conditions.

* Requested element size may come delivered separately to system for electric systems - All units supplied with factory with 3.6kW

**Where a unit supplied is capable of supplying more than 50°C, a tempering valve must be installed on the property or purchased as part of a valve kit with your order.

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Important Note

Installation availability, inclusions and add-ons vary by product type, site access, existing services, selected options and your property requirements. Some installations may require additional work, upgrades or checks before the job can proceed.

Fast & Reliable Delivery – What to Expect

Same Day Delivery: Available in Brisbane and Gold Coast on select units ordered before 8:00am
Express Delivery: 1–4 business days
Standard Delivery: 2–8 business days

Same Day Delivery

Same day delivery is available for selected hot water systems in Brisbane and Gold Coast metro areas when ordered before 8:00am, subject to stock availability, delivery capacity and suitable transport conditions.

Fast Metro Delivery

Most hot water orders in metro areas are delivered quickly, with around 90% arriving within 1 business day.

Weather Delays

Hot water systems cannot always be transported safely by courier during rain. Delivery timeframes may be affected when wet weather impacts safe handling, loading, unloading or transport conditions.

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If your express delivery order takes longer than 1–4 business days, we will adjust the delivery timeframe to our standard 2–8 business days and refund your express shipping charge automatically.

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