Vulcan 400L Electric Storage Hot Water System

The Vulcan 400L Electric Storage Hot Water System is available from Installed Today as a supply-only electric 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 plumber and electrician arranged, or check your supply and install package before checkout to confirm installation suitability, access, valve kit requirements, water pressure, electrical requirements, indoor or outdoor location and available installation timeframes.

This is the standard Vulcan 400L electric water heater, not the Duomax listing. It is a large electric storage unit designed for larger households, family homes and high-demand replacement installations where strong stored hot water capacity is required.

About the Vulcan 400L Electric Water Heater

The Vulcan 400L Electric Water Heater is a large electric storage hot water system that stores and heats water inside a vitreous enamel lined cylinder.

It is designed for larger homes that need more stored hot water capacity than common 250L or 315L systems. The 400L size can suit households with higher daily hot water use, multiple occupants, longer shower patterns, bath use, laundry demand or larger replacement requirements.

This model is commonly selected where a large electric storage unit is required and the property has suitable plumbing, electrical supply, access, water pressure, drainage and installation space.

Buy Vulcan 400L Supply Only

Buy the Vulcan 400L supply only if you already have a licensed plumber and electrician arranged for installation.

The product price is for the unit only. Installation, valve kits, old system removal, disposal, electrical work, pipework changes, pressure control, access changes, base or tray requirements 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 400L electric water heater price

• Vulcan 400L electric hot water system

• Vulcan 661400G7 electric water heater

• Vulcan 661400G8 electric water heater

• 400L electric storage hot water system

• Large electric hot water system

• 3.6 kW electric storage water heater

• 4.8 kW electric storage water heater

• Vulcan 400L supply only

Vulcan 400L Supplied and Installed in Brisbane & Gold Coast

The Vulcan 400L Electric 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

• Electrical work

• Circuit or isolator changes

• Pipework changes

• Water pressure control

• Base or tray requirements

• Restricted access

• Indoor drainage requirements

• Outdoor weather exposure requirements

• Relocation from the existing hot water position

• Non-compliant existing installation

• Team lift or delivery access requirements

Vulcan 400L Installation in Brisbane

Installed Today can help Brisbane customers order the Vulcan 400L as either a supply-only electric water heater or a supplied and installed package in selected service areas.

This model may suit Brisbane family homes replacing an older large electric storage hot water system, especially where the existing location already suits a 400L cylinder and the electrical supply is suitable for the selected element size.

Before installation, the site should be checked for access, drainage, water pressure, electrical supply, valve condition, pipework, base condition, weather exposure, lifting access and compliance requirements.

Vulcan 400L Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Vulcan 400L for supply only or supply and install where available.

This system may suit larger coastal homes, family properties, rental homes and investment properties needing a large electric storage hot water replacement. Final installation suitability depends on the existing hot water location, plumbing, electrical supply, water pressure, access, base condition and whether any additional parts or labour are required.

Is the Vulcan 400L Right for Your Home?

This system may suit you if:

• You want a large 400L electric storage hot water system

• You are replacing an existing large electric water heater

• Your household has high hot water usage

• You want more stored capacity than a 250L or 315L electric system

• You want a vitreous enamel lined cylinder

• You want a standard Vulcan electric water heater rather than the Duomax listing

• You want a system suitable for indoor or outdoor installation where compliant

• You have suitable access, water pressure, drainage and installation space

• You have a suitable electrical connection or can arrange electrical work

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

Extra work may be required if:

• The system is being moved to a new location

• Existing valves are old, missing or non-compliant

• Electrical upgrades are required

• The existing circuit does not suit the selected element size

• Drainage or safe tray requirements apply

• Water pressure control is required

• Pipework changes are required

• Access is restricted

• The old system needs removal or disposal

• The installation area does not suit the tank size, weight or service access

• A smaller system may be better suited to the household’s usage pattern

Key Features of the Vulcan 400L

• 400L electric storage hot water system

• Standard Vulcan electric water heater range

• Product code: 661400G7 for the 3.6 kW model

• Product code: 661400G8 for the 4.8 kW model

• 400L hot water delivery

• Suitable for larger families with high hot water demand

• Maximum listed people serviced: 9, based on stated usage conditions

• Single element electric storage design

• Vitreous enamel lined cylinder

• Suitable for internal and external installation where compliant

• Suitable for connection to off-peak tariff

• 20 mm hot and cold water connections

• 850 kPa ECV setting

• 680 kPa maximum water supply pressure with ECV

• 800 kPa maximum water supply pressure without ECV

• 1000 kPa relief valve setting

• 111 kg empty weight

• 1840 mm high x 690 mm wide x 730 mm deep

• Large capacity replacement option

• WaterMark approved

• 10 year cylinder warranty and 1 year parts and labour warranty on cylinder listed by Vulcan, subject to current warranty terms

Quick Specs

Brand: Vulcan
Range: Standard Vulcan Electric
Product: Vulcan 400L Electric Water Heater
Product Code: 661400G7 / 661400G8
System Type: Electric storage hot water
Fuel Type: Electric
Tank Volume / Hot Water Delivery: 400L
Recommended Household Size: Larger family homes, up to 9 people based on stated usage conditions
Installation Type: Internal or external where suitable
Element Type: Single element
Element Rating: 3.6 kW or 4.8 kW, depending on selected model
Tariff Suitability: Suitable for connection to off-peak tariff
Cylinder Type: Vitreous enamel lined cylinder
Water Connections: 20 mm hot and cold water connections
ECV Setting: 850 kPa
Maximum Water Supply Pressure with ECV: 680 kPa
Maximum Water Supply Pressure without ECV: 800 kPa
Relief Valve Setting: 1000 kPa
Dimensions: 1840 mm high x 690 mm wide x 730 mm deep
Weight Empty: 111 kg
WaterMark: Yes
Warranty: 10 year cylinder warranty and 1 year parts and labour warranty on cylinder listed by Vulcan, subject to current warranty terms

Vitreous Enamel Lined Cylinder

The Vulcan 400L uses a vitreous enamel lined cylinder. This lining helps protect the inside of the cylinder and supports long-term electric 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 electric storage water heater.

Large 400L Storage Capacity

The 400L capacity makes this Vulcan model suitable for homes with high daily hot water demand.

It may suit larger families, rental properties, larger homes, properties with multiple occupants or households replacing an existing 400L electric storage unit. The right size still depends on shower length, shower flow rates, baths, laundry use, climate, tariff setup and household routines.

Single Element Electric Heating

The Vulcan 400L is a single element electric storage water heater, with 3.6 kW and 4.8 kW model options depending on the selected product code.

Electrical suitability must be checked before installation. Electrical work, circuit changes, isolator upgrades or compliance upgrades are not included unless selected or arranged separately.

Off-Peak Tariff Suitability

The Vulcan 400L electric water heater is listed as suitable for connection to off-peak tariff.

This can suit large electric storage systems where the tank heats during off-peak electricity periods and stores hot water for later use. Tariff setup, recovery time and household usage should be checked before choosing the system.

Internal or External Installation

The Vulcan 400L is suitable for internal or external installation where the location meets the required plumbing, drainage, access, electrical and compliance requirements.

For indoor installations, safe tray, drainage, service access and leak protection requirements should be checked before installation.

For outdoor installation, the system location must be suitable for weather exposure, service access, plumbing connections, base support and electrical compliance.

Water Pressure Requirements

The Vulcan 400L has an ECV setting of 850 kPa, maximum water supply pressure of 680 kPa with ECV, maximum water supply pressure of 800 kPa without ECV and relief valve setting of 1000 kPa.

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.

Large System Replacement Considerations

The Vulcan 400L is a large and heavy electric storage unit. Its size and weight mean access should be checked carefully before ordering or installation.

Stairs, narrow side access, steep blocks, cupboard locations, raised platforms, tight laundry spaces and difficult delivery paths may affect installation requirements.

Vulcan 400L vs Duomax 400L

This page is for the standard Vulcan 400L electric water heater range, not the Duomax page.

Both styles may appear similar in capacity and use case, but the supplied product code, trade listing, connection details and availability should be checked before ordering. Customers replacing an existing unit should match the product carefully to the existing installation and selected supply or install option.

Vulcan 400L vs 315L Electric Storage

The Vulcan 400L offers more stored hot water capacity than a 315L electric storage unit.

A 315L system may suit many medium to large families, while the 400L model may be better for larger households, higher shower use, multiple occupants, homes with baths or properties that regularly run out of hot water with a smaller tank.

The right size depends on usage patterns, tariff setup and whether the household needs the extra stored capacity.

Vulcan 400L vs Heat Pump Hot Water

A Vulcan 400L electric storage system uses an electric element to heat stored water. A heat pump uses heat from the surrounding air to heat water more efficiently under suitable conditions.

The Vulcan 400L may suit customers wanting a straightforward large electric storage replacement. A heat pump may suit customers looking for an energy-efficient upgrade where the installation location has suitable airflow, drainage, electrical supply, noise considerations and available space.

Vulcan 400L vs Instant Electric Hot Water

The Vulcan 400L stores a large volume of hot water, while an instant electric system heats water as it flows through the unit.

A 400L storage system is generally better suited to whole-home high-demand hot water than most instant electric systems. Instant electric units may suit specific point-of-use applications but often require higher electrical capacity and may not suit larger whole-home family use.

Common Uses

• Large electric hot water system replacement

• 400L electric storage replacement

• Larger family homes

• Homes with high hot water usage

• Properties with multiple occupants

• Rental properties

• Investment properties

• Renovation projects

• Properties replacing an existing 400L electric unit

• Homes suited to off-peak electric hot water

• Indoor installations with compliant drainage and access

• Outdoor installations with suitable base and weather exposure

• 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, tariff setup, installation location, plumbing condition, electrical supply, water pressure, access, drainage and compliance requirements.

Why Order From Installed Today?

Installed Today makes it easier to order the Vulcan 400L 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 electrician 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 models

• 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 400L supply only?

Yes. You can buy the Vulcan 400L as a supply-only unit if you already have a licensed plumber and electrician arranged.

Can I get the Vulcan 400L 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 400L 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, electrical work, pipework changes and other extras are not included unless selected separately.

What size is the Vulcan 400L?

The Vulcan 400L has 400L hot water delivery.

How many people is the Vulcan 400L suitable for?

Vulcan lists the 400L model as suitable for a maximum of 9 people based on stated usage conditions. Real suitability depends on shower length, water temperature, climate, outlet flow rates, tariff setup and household usage patterns.

What is the product code?

The 3.6 kW model is commonly listed as 661400G7 and the 4.8 kW model is commonly listed as 661400G8.

What is the element size?

The Vulcan 400L is available in 3.6 kW and 4.8 kW single element versions, depending on the selected model.

Is it single element or twin element?

This model is listed as a single element electric water heater.

Can it be installed indoors?

Yes, it can be installed indoors where the location meets access, drainage, plumbing, electrical and compliance requirements.

Can it be installed outdoors?

Yes, it can be installed outdoors where the location is suitable and compliant.

Is it suitable for off-peak tariff?

Yes. Vulcan lists the 400L model as suitable for connection to off-peak tariff.

What are the dimensions?

The listed dimensions are 1840 mm high x 690 mm wide x 730 mm deep.

What does it weigh?

The listed empty weight is 111 kg.

What are the water connections?

The listed hot and cold water connections are 20 mm.

What is the ECV setting?

The listed ECV setting is 850 kPa.

What is the maximum water supply pressure?

The listed maximum water supply pressure is 680 kPa with ECV and 800 kPa without ECV.

What is the relief valve setting?

The listed relief valve setting is 1000 kPa.

Is this the Duomax 400L?

No. This page is for the standard Vulcan 400L electric water heater range, not the Duomax 400L listing.

Is it suitable for replacing an old large electric water heater?

Yes, it may be suitable for like-for-like replacement of an older large electric storage water heater, provided the location, connections, electrical supply, water pressure and compliance requirements are suitable.

What warranty does it have?

Vulcan lists a 10 year cylinder warranty and 1 year parts and labour warranty on cylinder, 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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Buying a new hot water system, water filter, pump or plumbing product should be simple. Installed Today helps you compare the product, the supply-only price and the available installation options in one place, so you can choose what suits your home, budget and timing without the back and forth.

Whether you already know exactly what you need or you are still comparing options, we make it easier to order with confidence.

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Installation Add-Ons Available

Where relevant, you can add common installation extras such as valve kits, bases, electrical options, removal, access-related items or other site-specific upgrades before checkout.

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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.

Express Delivery Guarantee

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.

Order Tracking

We will send your delivery details as soon as your order has been dispatched.

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