Vulcan 400L Electric Storage Hot Water System

The Vulcan 400L Electric Storage Hot Water System is available from Hot Water Outlet as a supply-only electric hot water unit or as a supply and installation package in selected Brisbane, Gold Coast, Sydney and Melbourne service areas, where available.

Choose the supply-only option if you already have a licensed plumber and electrician arranged, or review available installation package options before checkout to confirm installation suitability, access, valve kit requirements, water pressure, electrical requirements, indoor or outdoor installation suitability and available installation timeframes.

This is the standard Vulcan 400L electric water heater range, not the Duomax listing. The Vulcan 400L is a large-capacity electric storage hot water system 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.

The 400L capacity may suit:

• larger family homes

• households with high hot water usage

• homes with multiple occupants

• properties with bath usage

• rental properties

• replacement installations requiring larger stored hot water capacity

This model is commonly selected where:

• a large electric storage system is required

• stronger daily hot water demand exists

• off-peak electric hot water is preferred

• a straightforward replacement for an older large electric water heater is needed

Suitability depends on:

• household size

• shower usage

• climate conditions

• laundry demand

• tariff configuration

• plumbing layout

• electrical supply

• installation access

Buy Vulcan 400L Supply Only

You can order the Vulcan 400L supply only from Hot Water Outlet if you already have a licensed plumber and electrician arranged for installation.

The listed product price is for the unit only unless an installation package is selected separately.

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 separately quoted or selected as part of an available installation package.

Common search terms related to this model 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 installed Brisbane

• Vulcan 400L installed Gold Coast

• Vulcan 400L installed Sydney

• Vulcan 400L installed Melbourne

Vulcan 400L Supplied and Installed

The Vulcan 400L Electric Storage Hot Water System may be available with supply and installation packages in selected Brisbane, Gold Coast, Sydney and Melbourne service areas.

Installed-from pricing is based on the product together with the selected standard installation option. Final pricing can vary depending on site conditions and selected add-ons.

Additional costs may apply for:

• Valve kit replacement

• Old system removal

• Disposal

• Electrical work

• Circuit or isolator changes

• Pipework alterations

• Water pressure control

• Base or tray requirements

• Restricted access

• Indoor drainage requirements

• Outdoor weather exposure requirements

• Relocation of the hot water system

• Non-compliant existing installations

• Team lift or delivery access requirements

Installation suitability should be checked before installation.

Vulcan 400L Installation in Brisbane

Hot Water Outlet can assist Brisbane customers wanting the Vulcan 400L as either a supply-only electric water heater or a supplied and installed package where available.

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

• the electrical supply is suitable for the selected element size

• stronger household hot water demand exists

• off-peak electric hot water is already installed

Before installation, the site should be checked for:

• access

• drainage

• water pressure

• electrical supply

• valve condition

• pipework

• base condition

• weather exposure

• lifting access

• compliance requirements

Vulcan 400L Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Vulcan 400L through Hot Water Outlet for supply only or supply and installation where available.

This system may suit:

• larger coastal homes

• family properties

• rental homes

• investment properties

• households with high hot water demand

Final installation suitability depends on:

• existing hot water location

• plumbing condition

• electrical supply

• water pressure

• access

• base condition

• whether additional labour or materials are required

Vulcan 400L Installation in Sydney

Selected Sydney customers can order the Vulcan 400L through Hot Water Outlet as either a supply-only electric hot water unit or with installation options where available.

This model may suit Sydney homes wanting:

• a large-capacity electric storage system

• stronger stored hot water performance than a 315L system

• off-peak electric hot water suitability

• a replacement for an older large electric water heater

Before installation, access, drainage, safe tray requirements, electrical supply and installation conditions should be checked.

Vulcan 400L Installation in Melbourne

Melbourne customers can order the Vulcan 400L from Hot Water Outlet as either a supply-only electric storage system or a supplied and installed package in selected metro areas.

The Vulcan 400L may suit Melbourne:

• larger family homes

• high-demand households

• replacement electric hot water installations

• homes wanting maximum stored electric hot water capacity

Installation suitability depends on drainage, electrical supply, access, plumbing condition and installation compliance requirements.

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 suitable electrical provision or can arrange electrical work

• You want supply-only or supply and installation options

Additional work may be required if:

• The system is being relocated

• Existing valves are 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 requires removal and disposal

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

• A smaller system may better suit 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

• Suitable for larger families with high hot water demand

• Single element electric storage design

• Vitreous enamel lined cylinder

• Suitable for internal or external installation where compliant

• Suitable for connection to off-peak tariff

• 20 mm hot and cold water connections

• 850 kPa ECV setting

• Large-capacity replacement option

• WaterMark approved

Quick Specifications

Vitreous Enamel Lined Cylinder

The Vulcan 400L uses a vitreous enamel lined cylinder designed to help protect the inside of the cylinder.

Correct installation, pressure control, valve selection and ongoing maintenance all contribute to long-term electric storage hot water performance.

Water quality and installation conditions can also affect service life.

Large 400L Storage Capacity

The 400L capacity may suit homes with high daily hot water demand.

This size may suit:

• larger families

• homes with multiple occupants

• rental properties

• larger homes

• households replacing an existing 400L electric storage unit

The correct size still depends on:

• shower duration

• shower flow rates

• bath usage

• laundry demand

• climate conditions

• tariff setup

• household routines

Single Element Electric Heating

The Vulcan 400L is a single element electric storage water heater available in:

• 3.6 kW variants

• 4.8 kW variants

Electrical suitability should be checked before installation.

Electrical work, circuit upgrades, isolator changes and compliance upgrades are not included unless separately arranged.

Off-Peak Tariff Suitability

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

This may suit large electric storage systems where the tank heats during off-peak electricity periods and stores hot water for later household use.

Tariff setup, recovery time and household usage should be checked before installation.

Internal or External Installation

The Vulcan 400L may be installed indoors or outdoors where suitable.

Indoor installations may require:

• safe trays

• compliant drainage

• service access

• leak protection

Outdoor installations require:

• suitable weather exposure conditions

• base support

• plumbing access

• compliant electrical connections

Installation suitability should be checked before installation.

Water Pressure Requirements

The Vulcan 400L lists:

• ECV setting of 850 kPa

• maximum water supply pressure of 680 kPa with ECV

• maximum water supply pressure of 800 kPa without ECV

• 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.

This may include:

• stairs

• narrow side access

• steep blocks

• cupboard locations

• raised platforms

• tight laundry spaces

• difficult delivery paths

Additional labour or lifting equipment may be required depending on access conditions.

Vulcan 400L vs Duomax 400L

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

Both styles may appear similar in capacity and application, but:

• supplied product code

• trade listing

• connection details

• availability

should all be checked carefully before ordering.

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 households, while the 400L model may better suit:

• larger families

• higher shower usage

• multiple occupants

• homes with baths

• properties regularly running out of hot water with a smaller tank

The correct size depends on:

• usage patterns

• tariff setup

• daily hot water demand

Vulcan 400L vs Heat Pump Hot Water

The Vulcan 400L electric storage system uses an electric element to heat stored water.

A heat pump hot water system instead uses heat from surrounding air to heat water more efficiently under suitable conditions.

The Vulcan 400L may suit customers wanting:

• a straightforward large electric storage replacement

• off-peak electric hot water compatibility

• simpler replacement installation pathways

A heat pump may suit customers wanting:

• lower electricity consumption potential

• energy-efficient hot water upgrades

• solar PV integration

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 many instant electric systems.

Instant electric units may suit:

• point-of-use applications

• compact installations

• lower-demand situations

The best system depends on household demand, electrical supply and installation conditions.

Common Uses

Common applications for the Vulcan 400L include:

• 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 with licensed installers arranged

• Supply and installation projects in selected metro 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 Hot Water Outlet?

Hot Water Outlet makes it easier to order the Vulcan 400L as either a supply-only product or a supplied and installed package where available.

Customers can choose supply only if they already have a licensed plumber and electrician arranged, or request assistance arranging installation quotations in selected metro areas.

Benefits of ordering through Hot Water Outlet may include:

• Supply-only or supply and installation options

• Brisbane, Gold Coast, Sydney and Melbourne service coverage

• Installed-from pricing shown separately from product pricing

• Compatibility checks before installation

• Product-specific information to help compare models

• Optional installation add-ons where suitable

• Metro delivery availability

• Clear separation between unit price, installation and extras

Frequently Asked Questions

Can I buy the Vulcan 400L supply only?

Yes. The Vulcan 400L can be ordered supply only if you already have a licensed plumber and electrician arranged.

Is installation included in the product price?

No. Installation is not included unless separately quoted or selected as part of an available installation package.

Can the Vulcan 400L be installed in Brisbane?

Supply and installation may be available in selected Brisbane service areas subject to availability and site suitability.

Can the Vulcan 400L be installed in Gold Coast?

Yes. Selected Gold Coast installation areas may be available depending on scheduling and installation conditions.

Can the Vulcan 400L be installed in Sydney?

Supply and installation may be available in selected Sydney metro areas where suitable installation services are available.

Can the Vulcan 400L be installed in Melbourne?

Yes. Selected Melbourne service areas may be available subject to installer availability and site suitability.

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. Actual suitability depends on household demand and usage patterns.

What is the product code?

The 3.6 kW model is commonly listed as 661400G7 and the 4.8 kW model 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 may be installed indoors where the location meets drainage, access, plumbing, electrical and compliance requirements.

Can it be installed outdoors?

Yes. It may 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 suit like-for-like replacement installations where the location, plumbing, 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 manufacturer warranty terms and installation conditions.

Tempering Valve and Element Information

*Element size information:
All electric hot water units are supplied as standard with a 3.6kW element unless otherwise stated on the product page, invoice, or order confirmation.

If a different element configuration is requested, such as 1.8kW or 2.4kW, the hot water unit may still arrive with the standard 3.6kW element fitted from the manufacturer. The requested 1.8kW or 2.4kW element will be supplied separately with the order for installation by a suitably licensed electrical contractor or licensed electrical licence holder.

Any element changeover, electrical connection, disconnection, wiring, testing, or modification must be carried out by a licensed electrical contractor or licensed electrical licence holder. Elements must not be changed, connected, modified, or tested by an unlicensed person.

Alternative elements supplied for non-standard configurations may be generic replacement elements and may not be the same brand as the hot water unit unless specifically stated. Generic elements are supplied to suit the requested element size and electrical configuration, but final suitability must be checked by the licensed installer before installation.

1.8kW and 2.4kW elements supplied separately with a hot water unit include a 12-month supply-only parts warranty from the date of purchase, provided the element has been correctly installed by a licensed electrical contractor or licensed electrical licence holder and used under normal operating conditions.

This element warranty covers the replacement supply of the element only. It does not include labour, call-out fees, electrical work, plumbing work, fault finding, removal, reinstallation, testing, travel, downtime, damage caused by incorrect installation, or any other associated costs. Warranty may be declined where the element has been incorrectly installed, dry-fired, modified, damaged, connected to incorrect voltage or wiring, affected by power issues, used in unsuitable water conditions, or installed by an unlicensed person.

Proof of purchase, installer details, electrical licence details, photos, and/or return of the faulty element may be required before a warranty claim is approved.

**Tempering valve information:
Where a hot water system is capable of delivering water above 50°C, a compliant tempering valve must be installed to control the temperature delivered to personal hygiene fixtures such as showers, baths, basins, and bathroom outlets. This helps reduce the risk of scalding and assists with meeting plumbing compliance requirements.

A tempering valve blends hot and cold water to deliver a safer controlled outlet temperature to required fixtures. The hot water unit itself may store water at a higher temperature, but the water delivered to personal hygiene outlets must be controlled where required by plumbing regulations.

If your property already has a suitable, compliant tempering valve installed, your licensed plumber can assess whether it is appropriate for use with the new hot water system. Existing valves may not always be suitable due to age, condition, compliance requirements, valve type, location, or system compatibility.

If a compliant tempering valve is not already installed, or if the existing valve is unsuitable, one must be supplied and installed by a licensed plumber as part of the hot water installation.

Tempering valves are not automatically included with every supply-only hot water unit unless specifically selected, listed as included, or purchased as part of a suitable valve kit. If a tempering valve is required, please purchase the appropriate valve kit with your order or arrange for your licensed installer to supply and install the correct tempering valve on site.

It is the customer’s responsibility to ensure the installation is completed by appropriately licensed trades and that all required valves, fittings, electrical work, plumbing work, and compliance requirements are allowed for as part of the installation.

Buying a new hot water system or hot water part should be simple. Hot Water Outlet helps you compare hot water systems, valves, thermostats, elements, pipework and fittings in one place, so you can choose the products that suit your home, budget and hot water needs without the back and forth.

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Valves and Accessories Available

Where relevant, you can add common hot water parts such as tempering valves, pressure relief valves, duo valves, non-return valves, thermostats, elements, pipework and fittings to help complete your order.

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Important Note

Product suitability can vary by property, existing services, energy source, gas type, available space, connection points, pressure requirements and local compliance requirements. Always check product specifications carefully and confirm the selected hot water system, valves, fittings and accessories are suitable for your property before ordering.

Standard Delivery: 2–8 business days

Express Delivery: 1–4 business days

90% of products are delivered the next business day where stock, postcode eligibility and freight availability allow.

Delivery timeframes are estimates and may vary by product, stock location, delivery postcode, carrier availability and order timing. Wet weather, storms, flooding or unsafe site access may delay delivery and are additional to any advertised or guaranteed freight timeframes.