Rinnai Hotflo 125L Electric Hot Water System

The Rinnai Hotflo 125L Electric Hot Water System is available online from Hot Water Outlet as a supply-only electric storage water heater with metro delivery available in selected areas Australia wide.

Customers can purchase the Rinnai Hotflo 125L as a supply-only hot water system and request assistance arranging installation quotes after purchase through licensed local installers in selected metro regions.

The Rinnai Hotflo 125L electric storage water heater is a compact, reliable hot water system designed for smaller to medium homes needing dependable stored hot water. With 125L rated capacity, vitreous enamel lined steel tank, inbuilt anode protection, single element configuration, dual handed connections, internal or external installation suitability and a 10-year cylinder warranty, it is a practical choice for replacing an older 125L electric hot water system.

About the Rinnai Hotflo 125L Electric Water Heater

The Rinnai Hotflo 125L Electric Hot Water System is designed for homes needing a compact electric storage unit with standard sizing for straightforward replacement jobs.

Rinnai positions the Hotflo 125L as suitable for medium-sized homes and households of around 3 to 4 people in warm climate peak-period use, depending on shower length, hot water usage, tariff setup, climate and household habits.

The system uses a vitreous enamel lined steel tank for durability, along with enhanced sacrificial anode protection to help support cylinder life. It is thermostatically controlled and includes automatic safety temperature shut-off for added peace of mind.

Buy Rinnai Hotflo 125L Supply Only

Order the Rinnai Hotflo 125L Electric Hot Water System online from Hot Water Outlet with metro delivery available in selected areas across Australia.

This option is ideal if you already have a licensed plumber or electrician arranged and only need the unit supplied.

The supply-only product price includes the hot water system itself.

Installation, old system removal, disposal, valve kits, electrical work, plumbing alterations, compliance upgrades and additional site requirements are not included unless separately quoted.

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Installation Quotes Available After Purchase

Hot Water Outlet does not directly provide installation services.

After purchasing the Rinnai Hotflo 125L Electric Hot Water System, customers in selected metro areas may request assistance arranging installation quotes through licensed local plumbers and electricians.

Installation quote availability depends on:

• service location

• installer availability

• existing system type

• electrical suitability

• plumbing suitability

• access requirements

• compliance requirements

Additional installation costs may apply for:

• valve upgrades

• electrical work

• plumbing changes

• pipework alterations

• difficult access

• base preparation

• old system removal

• disposal

• compliance upgrades

Rinnai Hotflo 125L Delivery Brisbane

Hot Water Outlet offers metro delivery for the Rinnai Hotflo 125L Electric Hot Water System in selected Brisbane areas.

Customers can order online and request assistance arranging installation quotes after purchase where available.

Rinnai Hotflo 125L Delivery Gold Coast

Hot Water Outlet offers metro delivery for the Rinnai Hotflo 125L Electric Hot Water System in selected Gold Coast service areas.

Customers can purchase online and organise installation separately or request help arranging installation quotes after purchase.

Rinnai Hotflo 125L Delivery Sydney

Hot Water Outlet offers metro delivery for the Rinnai Hotflo 125L Electric Hot Water System in selected Sydney metro areas.

Customers can order online with installation quote assistance available after purchase in selected locations.

Rinnai Hotflo 125L Delivery Melbourne

Hot Water Outlet offers metro delivery for the Rinnai Hotflo 125L Electric Hot Water System in selected Melbourne metro areas.

Customers can purchase the system online and request help arranging installation quotes after delivery.

Is the Rinnai Hotflo 125L Right for Your Home?

The Rinnai Hotflo 125L Electric Hot Water System may be suitable if you are replacing a smaller electric storage water heater and want a straightforward, compact system from a well-known hot water brand.

It is commonly suited to smaller homes, units, townhouses, granny flats, rental properties and households with moderate hot water demand.

Suitability depends on household size, shower length, hot water habits, climate, tariff setup, fixture flow rates, available installation space, plumbing condition and electrical connection.

This system may suit you if:

• you are replacing an existing electric storage hot water system

• you want a 125L electric hot water unit

• your household has around 3 to 4 people in warm climate peak-period use

• you want a single element electric storage system

• you want a vitreous enamel lined steel tank

• you want inbuilt anode protection

• you need internal or external installation suitability

• your property has suitable access and installation space

• your plumbing and electrical setup are suitable for the selected installation option

• you prefer supply-only purchase flexibility

Extra work may be required if:

• the system is being moved to a new location

• existing valves are old, missing or non-compliant

• extra pipework or drainage changes are needed

• electrical upgrades are required

• access is restricted

• a compliant base, tray, drainage or insulation is required

• the old system needs additional removal or disposal work

• the selected element rating does not match the existing electrical setup

• the existing water pressure requires valve or pressure control changes

Key Features of the Rinnai Hotflo 125L

• 125L electric storage hot water system

• Product code HFE125

• Suitable for medium-sized homes and smaller households

• Rated capacity of 125L

• Vitreous enamel lined steel tank for durability

• Inbuilt anode protection to help extend tank life

• Dual handed connections for flexible installation

• Pressure temperature relief valve included

• Suitable for internal or external installation

• Thermostatically controlled operation

• Automatic safety temperature shut-off

• Single element configuration

• Lead free

• Standard sizing for easier replacement and emergency changeovers

• 1.8kW, 2.4kW and 3.6kW heating element options

• 240V 50Hz electrical supply

• IPX4 ingress protection rating

• Rp 3/4 water connections

• 10-year cylinder warranty under Rinnai warranty terms

Quick Specs

Brand: Rinnai
Range: Hotflo Electric Storage
Product: Rinnai Hotflo 125L Electric Hot Water Storage
Product Code: HFE125
System Type: Electric Storage Hot Water System
Rated Capacity: 125L
Recommended Household Size: Around 3 to 4 people in warm climate peak-period use
Cool Climate Peak-Period Suitability: Around 2 to 3 people
Off-Peak Warm Climate Suitability: Lower-demand applications depending on usage
Off-Peak Cool Climate Suitability: Around 1 to 2 people
Element Configuration: Single element
Heating Elements Available: 1.8kW, 2.4kW and 3.6kW
Electrical Supply: AC 240V 50Hz
Tank Lining: Vitreous enamel lined steel
Anode Protection: Inbuilt sacrificial anode
Installation Type: Internal or external installation
Water Connections: Rp 3/4
Connection Size: 20mm
Relief Valve Setting: 1000 kPa
Expansion Control Setting: 850 kPa
Maximum Water Supply Pressure With ECV: 680 kPa
Maximum Water Supply Pressure Without ECV: 800 kPa
Ingress Protection Rating: IPX4
Overall Height: 1245mm
Outlet Height: 1020mm
Inlet Height: 225mm
Lower Electrical Connection Height: 155mm
Upper Electrical Connection: Not applicable
Tank Diameter: 515mm
Empty Weight: 56kg
Cylinder Warranty: 10 years subject to Rinnai warranty terms

Vitreous Enamel Lined Tank

The Rinnai Hotflo 125L uses a vitreous enamel lined steel tank designed to support long-term durability.

Vitreous enamel lining helps protect the steel tank surface from stored hot water conditions. The system also includes inbuilt anode protection, which helps protect the cylinder as part of the tank’s corrosion protection design.

Correct installation, water pressure control, water quality, valve setup and servicing conditions can all affect hot water system lifespan and warranty outcomes.

Inbuilt Anode Protection

The Rinnai Hotflo 125L Electric Water Heater includes an inbuilt sacrificial anode to help extend the life of the hot water tank.

Anodes are designed to gradually wear over time as part of protecting the cylinder. This makes maintenance and water quality checks important for long-term performance.

Single Element Configuration

The Rinnai Hotflo 125L uses a single element configuration.

Single element electric hot water systems are commonly used for straightforward replacement jobs and can suit smaller households or lower to moderate hot water demand. The correct element size should match the selected model, available circuit, tariff setup and household requirements.

The Rinnai Hotflo 125L lists 1.8kW, 2.4kW and 3.6kW element options.

Internal or External Installation

The Rinnai Hotflo 125L Electric Hot Water System is suitable for internal or external installation where the location is compliant and suitable.

This gives flexibility for homes replacing an existing indoor or outdoor electric storage system. Installation location still needs suitable access, drainage, ventilation, base support, valve setup, electrical connection and compliance with plumbing and electrical requirements.

Dual Handed Connections

The Rinnai Hotflo 125L includes dual handed connections to allow more flexibility during installation.

This can make replacement easier because the water connections can better suit different existing plumbing layouts. Dual handed connection options are useful in like-for-like replacement jobs where matching existing pipework can help reduce unnecessary plumbing changes.

Thermostatic Safety Control

The Rinnai Hotflo 125L is thermostatically controlled and includes automatic safety temperature shut-off.

This helps control stored water temperature and provides added protection as part of the system’s safety design.

125L Electric Storage Capacity

The 125L rated capacity makes this model a practical choice for smaller homes and moderate hot water demand.

It provides more stored hot water than small point-of-use systems while remaining more compact than larger 160L, 250L, 315L and 400L electric storage units.

For higher household demand, a larger electric storage system may be more suitable.

Common Uses

The Rinnai Hotflo 125L Electric Hot Water System can be suitable for:

• smaller homes

• units and apartments

• townhouses

• granny flats

• rental properties

• compact replacement locations

• electric storage hot water replacement

• internal or external hot water installations

• homes needing more capacity than a small 50L system

• homes where a larger 160L or 250L system is not required

Frequently Asked Questions

Can I buy the Rinnai Hotflo 125L supply only?

Yes. You can buy the Rinnai Hotflo 125L as a supply-only product if you already have a licensed installer arranged.

Does Hot Water Outlet install electric hot water systems?

No. Hot Water Outlet does not directly provide installation services. Customers may request assistance arranging installation quotes after purchase in selected metro areas.

Can I get an installation quote after purchasing?

Yes. Customers in selected metro areas may request help arranging installation quotes through licensed local installers after purchasing the system.

Is delivery available Australia wide?

Metro delivery is available in selected service areas across Australia. Delivery availability may vary depending on location and product type.

What is the product code for the Rinnai Hotflo 125L?

The product code for the Rinnai Hotflo 125L electric storage water heater is HFE125.

What is the rated capacity?

The Rinnai Hotflo 125L has a 125L rated capacity.

How many people is the Rinnai Hotflo 125L suitable for?

The Rinnai Hotflo 125L is listed as suitable for around 3 to 4 people in warm climate peak-period use. Suitability can be lower in cooler climates or off-peak setups and depends on shower length, usage pattern and household demand.

Can the Rinnai Hotflo 125L be installed outside?

Yes. The Rinnai Hotflo 125L is suitable for internal or external installation where the location is compliant and suitable.

Is the Rinnai Hotflo 125L single element or twin element?

The Rinnai Hotflo 125L uses a single element configuration.

What element sizes are available?

The Rinnai Hotflo 125L lists 1.8kW, 2.4kW and 3.6kW heating element options.

What is the tank lining?

The Rinnai Hotflo 125L uses a vitreous enamel lined steel tank.

Does the Rinnai Hotflo 125L have an anode?

Yes. The Rinnai Hotflo 125L includes inbuilt anode protection to help extend the life of the hot water tank.

What is the relief valve setting?

The Rinnai Hotflo 125L has a listed 1000 kPa relief valve setting.

What is the expansion control setting?

The Rinnai Hotflo 125L has a listed 850 kPa expansion control setting.

What is the maximum water supply pressure?

The Rinnai Hotflo 125L lists 680 kPa maximum water supply pressure with an expansion control valve and 800 kPa maximum water supply pressure without an expansion control valve.

What are the dimensions?

The Rinnai Hotflo 125L has an overall height of 1245mm and a tank diameter of 515mm.

How much does the Rinnai Hotflo 125L weigh?

The Rinnai Hotflo 125L has an empty weight of 56kg.

What is the IP rating?

The Rinnai Hotflo 125L has an IPX4 ingress protection rating.

What is the warranty on the Rinnai Hotflo 125L?

The Rinnai Hotflo 125L is listed with a 10-year cylinder warranty subject to Rinnai warranty terms and conditions.

Is the Rinnai Hotflo 125L good for replacing an old electric hot water system?

Yes. The Rinnai Hotflo 125L can be a practical replacement option for selected smaller electric storage hot water systems, provided the existing location, plumbing, electrical supply, water pressure and household hot water demand suit a 125L electric storage water heater.

What is the difference between the Rinnai Hotflo 125L and a larger 250L model?

The Rinnai Hotflo 125L is a smaller storage system suited to lower to moderate hot water demand. A 250L electric storage system provides more stored hot water and may be better suited to larger families or homes with higher daily hot water use.

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.

Whether you already know exactly what you need or you are still comparing electric, gas, instant gas, gas storage or heat pump hot water options, Hot Water Outlet makes it easier to order with confidence.

Why Customers Choose Hot Water Outlet

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Shop hot water systems, valves, thermostats, elements, pipework and fittings online from one focused hot water store. Choose the system first, then add the parts and accessories needed for your setup.

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See your hot water system price upfront, then add common valves, fittings or accessories before placing your order. This makes it easier to plan your purchase and compare options before checkout.

Product Details That Actually Help

Key specs, sizing details, tank capacity, flow rate, gas type, energy source, dimensions, warranty information, product features and suitability notes are shown clearly, so you can compare hot water systems properly before you buy.

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.

Built for Australian Hot Water Buyers

Hot Water Outlet is focused on hot water systems and accessories for Australian homes, rentals, renovations and replacement projects. Browse trusted brands and compare practical options for common household hot water needs.

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Add your hot water unit and selected parts to cart in one order, instead of searching across multiple suppliers for systems, valves, fittings and accessories.

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Not sure which hot water system, size, energy type or accessory is right? Hot Water Outlet gives you a clearer way to compare electric hot water systems, heat pump hot water systems, gas storage hot water systems and instant gas hot water units before you order.

Designed To Make Your Decision Easier

Hot Water Outlet is built for customers who want a faster, clearer and more convenient way to buy hot water systems and hot water parts online.

Instead of guessing which product suits your home, searching multiple suppliers, or trying to match accessories separately, you can review the system, compare the specifications and add common hot water parts before checkout.

Choose your hot water system.

Add the valves and accessories you need.

Compare product details before checkout.

Order online with confidence.

It is a simpler way to buy the hot water products and parts that matter most.

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.