Vulcan 125L Electric Storage Hot Water System

The Vulcan 125L 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 125L electric water heater, not the Duomax listing. It is a compact electric storage unit designed for smaller households, units, townhouses and replacement installations where more capacity is needed than a small 50L or 80L unit, but a larger 160L, 250L, 315L or 400L system is not required.

About the Vulcan 125L Electric Water Heater

The Vulcan 125L Electric Water Heater is an electric storage hot water system that stores and heats water inside a vitreous enamel lined cylinder.

It is designed for smaller households and warmer climates where daily hot water demand is moderate. The 125L size can suit units, townhouses, smaller homes, granny flats, rental properties and like-for-like replacements where an existing 125L electric system is already installed.

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

Buy Vulcan 125L Supply Only

Buy the Vulcan 125L 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 125L electric water heater price

• Vulcan 125L electric hot water system

• Vulcan 601125G7 electric water heater

• Vulcan 601125G4 electric water heater

• 125L electric storage hot water system

• Small electric hot water system

• 1.8 kW electric storage water heater

• 3.6 kW electric storage water heater

• Vulcan 125L supply only

Vulcan 125L Supplied and Installed in Brisbane & Gold Coast

The Vulcan 125L 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

• Delivery access or lifting requirements

Vulcan 125L Installation in Brisbane

Installed Today can help Brisbane customers order the Vulcan 125L as either a supply-only electric water heater or a supplied and installed package in selected service areas.

This model may suit Brisbane units, townhouses, smaller homes, granny flats and rental properties replacing an older 125L electric storage hot water system, especially where the existing location already suits a similar cylinder size 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 125L Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Vulcan 125L for supply only or supply and install where available.

This system may suit apartments, townhouses, smaller homes, granny flats, rental properties and investment properties needing a compact 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 125L Right for Your Home?

This system may suit you if:

• You want a 125L electric storage hot water system

• You are replacing an existing 125L electric water heater

• Your household has light to moderate hot water usage

• You want more stored capacity than a 50L or 80L electric system

• You do not need the extra capacity of a 160L or 250L 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 larger system may be better suited to the household’s usage pattern

Key Features of the Vulcan 125L

• 125L electric storage hot water system

• Standard Vulcan electric water heater range

• Product code: 601125G4 for the 1.8 kW model

• Product code: 601125G7 for the 3.6 kW model

• 125L hot water delivery

• Suitable for smaller families and warmer climates

• Maximum listed people serviced: 4, based on stated usage conditions

• Single element electric storage design

• Vitreous enamel lined cylinder

• Suitable for internal and external installation where compliant

• Requires connection to continuous tariff

• Rp 3/4 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 pressure

• 41 kg empty weight

• 44 kg shipped weight

• 1250 mm high x 480 mm wide x 515 mm deep

• Compact replacement option

• WaterMark approved

• 10 year cylinder warranty and 12 months parts and labour warranty listed by Vulcan, subject to current warranty terms

Quick Specs

Brand: Vulcan
Range: Standard Vulcan Electric
Product: Vulcan 125L Electric Water Heater
Product Code: 601125G4 / 601125G7
System Type: Electric storage hot water
Fuel Type: Electric
Tank Volume / Hot Water Delivery: 125L
Recommended Household Size: Smaller households, up to 4 people based on stated usage conditions
Installation Type: Internal or external where suitable
Element Type: Single element
Element Rating: 1.8 kW or 3.6 kW, depending on selected model
Tariff Requirement: Requires connection to continuous tariff
Cylinder Type: Vitreous enamel lined cylinder
Water Connections: Rp 3/4
ECV Setting: 850 kPa
Maximum Water Supply Pressure with ECV: 680 kPa
Maximum Water Supply Pressure without ECV: 800 kPa
Relief Valve Pressure: 1000 kPa
Dimensions: 1250 mm high x 480 mm wide x 515 mm deep
Weight Empty: 41 kg
Weight Shipped: 44 kg
WaterMark: Yes
Warranty: 10 year cylinder warranty and 12 months parts and labour warranty listed by Vulcan, subject to current warranty terms

Vitreous Enamel Lined Cylinder

The Vulcan 125L 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.

125L Storage Capacity

The 125L capacity makes this Vulcan model suitable for smaller households with light to moderate daily hot water use.

It may suit units, townhouses, smaller homes, granny flats, rental properties and lower-demand family homes where a 160L, 250L, 315L or 400L system is not required. 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 125L is a single element electric storage water heater, with 1.8 kW and 3.6 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.

Continuous Tariff Requirement

The Vulcan 125L electric water heater is listed as requiring connection to continuous tariff.

This is important because smaller electric storage systems may need more regular reheating availability than larger off-peak storage systems. Tariff setup should be checked before installation, especially if replacing an older hot water unit connected to a different electrical supply arrangement.

Internal or External Installation

The Vulcan 125L 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 125L 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 pressure 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.

Compact Replacement Considerations

The Vulcan 125L is smaller than 160L, 250L, 315L and 400L electric storage systems, making it useful where space is limited or hot water demand is moderate.

The existing location should still be checked before ordering, especially for cupboards, raised platforms, tight laundries, internal utility spaces, narrow side access or difficult delivery paths.

Vulcan 125L vs Duomax 125L

This page is for the standard Vulcan 125L 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 125L vs 160L Electric Storage

The Vulcan 125L is smaller than a 160L electric storage unit and may suit homes with lighter daily hot water demand.

A 160L system may be better for higher usage, longer showers, extra occupants or homes that regularly run short on hot water with a 125L tank. The right size depends on usage patterns, tariff setup and whether the household needs more stored capacity.

Vulcan 125L vs 250L Electric Storage

The Vulcan 125L is a compact electric storage system, while the 250L model provides significantly more stored hot water capacity.

A 125L model may suit smaller households, units, granny flats and lower usage. A 250L model may be better for families, higher occupancy, longer showers, higher laundry use or homes needing stronger whole-home hot water capacity.

Vulcan 125L vs Heat Pump Hot Water

A Vulcan 125L 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 125L may suit customers wanting a straightforward compact 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 125L vs Instant Electric Hot Water

The Vulcan 125L stores a set volume of hot water, while an instant electric system heats water as it flows through the unit.

A 125L storage system may suit small whole-home use better than many instant electric units. Instant electric systems may suit specific point-of-use applications but often require higher electrical capacity and may not suit every whole-home installation.

Common Uses

• Electric hot water system replacement

• 125L electric storage replacement

• Smaller households

• Units and townhouses

• Smaller homes and granny flats

• Homes with light to moderate hot water usage

• Rental properties

• Investment properties

• Renovation projects

• Properties replacing an existing 125L electric unit

• Homes suited to continuous tariff 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 125L 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 125L supply only?

Yes. You can buy the Vulcan 125L as a supply-only unit if you already have a licensed plumber and electrician arranged.

Can I get the Vulcan 125L 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 125L 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 125L?

The Vulcan 125L has 125L hot water delivery.

How many people is the Vulcan 125L suitable for?

Vulcan lists the 125L model as suitable for a maximum of 4 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 1.8 kW model is commonly listed as 601125G4 and the 3.6 kW model is commonly listed as 601125G7.

What is the element size?

The Vulcan 125L is listed with 1.8 kW and 3.6 kW single element variants, 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?

The Vulcan 125L model is listed as requiring connection to continuous tariff. If you want an off-peak electric storage system, a larger model may be more suitable depending on household usage and electrical setup.

What are the dimensions?

The listed dimensions are 1250 mm high x 480 mm wide x 515 mm deep.

What does it weigh?

The listed empty weight is 41 kg and the shipped weight is 44 kg.

What are the water connections?

The listed water connections are Rp 3/4.

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 pressure?

The listed relief valve pressure is 1000 kPa.

Is this the Duomax 125L?

No. This page is for the standard Vulcan 125L electric water heater range, not the Duomax 125L listing.

Is it suitable for replacing an old 125L electric water heater?

Yes, it may be suitable for like-for-like replacement of an older 125L 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 12 months 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.

Hassle-Free Installation – Done Right by Trusted Experts

Need professional installation? We’ve got you covered! Our optional installation service connects you with our network of certified, trusted contractors, ensuring a smooth and stress-free setup.

How It Works:

🔹 Step 1: Select Installation Service
Choose to include professional installation when purchasing your new system.

🔹 Step 2: Pay for Installation Upfront
Simply add the installation service prior to adding your product to cart —no hidden fees, no surprises.

🔹 Step 3: We Assign a Certified Contractor
We’ll match you with a licensed, experienced contractor from our network to handle the installation.

🔹 Step 4: Schedule Your Installation
The assigned contractor will contact you directly to arrange a convenient time for installation.

🔹 Step 5: Direct Support When You Need It
For any installation-related questions, your contractor is your first point of contact. If any issues arise, our team is here to help.

🚨 Please Note: Installed Today supplies the product and connects you with a certified contractor for installation.

We’re committed to delivering top-quality products and facilitating a seamless installation experience. Have product questions? Reach out to us anytime! 🔥

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.

Why Customers Choose Installed Today

Supply Only or Installed Options

Choose the product on its own, or add installation where available. This gives you the flexibility to buy the way that suits you best.

Clear Pricing Before Checkout

See your product price upfront, then add the installation options or common extras you need before placing your order. No confusing quote forms just to understand your starting price.

Product Details That Actually Help

Key specs, sizing details, warranty information, product features and suitability notes are shown clearly, so you can compare products properly before you buy.

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.

Built Around Brisbane and Gold Coast Homes

Our product and installation options are selected with common local homes, water quality, plumbing layouts, access issues and replacement requirements in mind.

One Simple Order

Add the product and selected extras to cart in one order, instead of trying to organise separate suppliers, installers and parts.

Practical Help Before You Buy

Not sure which product, size or installation option is right? Installed Today gives you a clearer path to choosing the right system before you order.

Designed To Make Your Decision Easier

Installed Today is built for customers who want a faster, clearer and more convenient way to buy.

Instead of guessing what is included, waiting for basic pricing or trying to work out which extras are needed, you can review the product, compare your options and move forward with confidence.

Choose supply only if you just need the product.

Choose supplied and installed if you want the product installed where available.

Add common extras before checkout if your job needs additional parts or site-specific options.

It is a simpler way to organise the product and the parts of the job that matter most.

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.

Need help with your delivery? Contact our team and we’ll be happy to assist.