Dux Proflo 125L Electric Hot Water System - 125T1
Buy the Dux Proflo 125L electric storage water heater from Hot Water Outlet. The Australian-made, standard-diameter 125T1 delivers mains-pressure hot water with dual-sided plumbing connections and a choice of 1.8kW or 3.6kW single-element variants. Order the unit supply only and arrange qualified installation separately.
What Is the Dux Proflo 125L?
The Dux Proflo 125T1 is a mains-pressure, single-element electric storage water heater. Its enamelled steel cylinder stores water for later use, with an electric element reheating the tank as required. It is designed for homeowners who want familiar electric storage operation without stepping up to a larger 160L or 250L heater.
Dux positions the 125L size for roughly 2-3 people, depending on water use. It may suit units, townhouses, compact homes, rental properties and replacement jobs where the existing footprint and daily hot-water demand are compatible. A licensed installer should confirm tank capacity, heating schedule, electrical power, plumbing layout and access before the unit is ordered.
Why Choose the Dux Proflo 125T1?
Rated hot-water delivery
The familiar 125L Proflo size provides 130L of physical tank storage, as specified by Dux.
Single-element options
Select the correct factory element variant to suit your electrical connection and heating requirements.
Water connections
Connections on both sides provide flexibility when replacing an existing storage heater.
Location flexibility
Suitable for compliant indoor or outdoor positions, subject to access, drainage and clearances.
Tank enamel protection
Commercial-grade vitreous enamel and a larger anode are part of the Proflo design.
Everyday hot water
A mains-pressure storage system for household taps and showers where plumbing conditions permit.
Manufactured for local use
The Proflo 80L-400L range is manufactured in Australia.
Eligible domestic tank cover
Tank warranty for eligible single-family dwellings, with separate parts and labour terms.
Dux Proflo 125L Supply Only from Hot Water Outlet
What you are buying
The supplied product is the Dux Proflo 125L electric storage water heater in the selected factory variant. Hot Water Outlet sells the heater as a product purchase, not as an installation service.
The exact 1.8kW or 3.6kW configuration should match the SKU shown at checkout. If unsure, confirm before ordering.
What supply only does not include
- Plumber, electrician or installation labour
- New isolation, pressure, temperature or expansion valves
- Old heater disconnection, removal or disposal
- Electrical circuit, isolator or switchboard changes
- Pipework alterations, drainage, trays or base works
- Site-specific compliance upgrades and lifting equipment
Dux Proflo 125L Technical Specifications
These specifications describe the standard-diameter 125T1, not the narrow-diameter 125X1. Measurements come from Dux's official technical documents; confirm the selected element version and allow appropriate installation clearance.
| Specification | Dux Proflo 125T1 |
|---|---|
| Manufacturer | Dux |
| Range | Proflo Electric Storage |
| Model family | 125T1 (standard diameter) |
| Product description | 125L electric storage hot water system |
| Heater type | Mains-pressure, single-element electric storage |
| Rated hot-water delivery | 125L |
| Actual storage capacity | 130L |
| Element options | 1.8kW or 3.6kW; confirm selected SKU |
| Electrical supply | 240V AC single phase, as per Dux range brochure |
| Installation locations | Indoor or outdoor, subject to manufacturer instructions and compliance |
| Hot and cold connections | Both sides of tank; standard Proflo configuration |
| Overall height | 1090mm |
| Tank diameter | 530mm |
| Overall diameter including connection projection | 570mm |
| Cold inlet height | 190mm |
| Hot outlet height | 865mm |
| Electrical entry height | 135mm |
| Empty net weight | 51kg |
| Pressure/temperature relief valve pressure | 1400kPa |
| Maximum inlet pressure listed by Dux | 1120kPa; installer must select appropriate controls |
| Cylinder construction | Commercial-grade Y-class enamelled steel |
| Base | Tough polymer base |
| Recommended household reference | 2-3 people according to Dux; actual demand varies |
| Tank warranty in eligible single-family dwellings | 10 years, subject to conditions |
| Tank warranty in other applications | 3 years, subject to conditions |
| Parts and labour warranty | 1 year, subject to conditions |
| Country of manufacture | Australia, Proflo 80L-400L range |
Specifications and variant availability can change. Confirm the model plate, manufacturer's current instructions and applicable compliance requirements for the unit supplied.
125L Hot Water Delivery vs 130L Storage
The Dux Proflo 125T1 is commonly advertised as a 125L electric water heater. That figure refers to its rated hot-water delivery. Dux's 2026 brochure separately lists 130L actual tank storage. These figures represent different measures of the same standard 125T1 appliance.
For household sizing, think beyond litres alone. Daily demand depends on shower length, showerhead flow, incoming water temperature, baths, laundry or dishwasher use, how quickly several people use hot water, and the heating tariff or power availability. A nominal 2-3-person rating is a guide, not a guarantee.
1.8kW vs 3.6kW Single-Element Options
1.8kW configuration
A lower-powered single-element option in the Dux 125T1 family. May suit compatible electrical arrangements where lower instantaneous power is desirable, with slower water reheating than a higher-powered element under similar conditions.
3.6kW configuration
A higher-powered single-element variant for customers whose electrical circuit and heating requirements accommodate it. Typically provides faster reheating than the 1.8kW version under like-for-like conditions.
Dual-Sided Water Connections & Placement
Dux lists water connections on both sides of the standard Proflo 125L tank. This may simplify some replacements where existing hot and cold pipe locations vary. It does not remove the need to confirm connection heights, pipe sizes, plumbing compliance or the correct hot-water delivery temperature.
The 125T1 is listed at 1090mm high, with a 530mm tank diameter and 570mm overall diameter including connection projection. Dux lists hot-water outlet height at 865mm, cold-water inlet at 190mm and electrical entry at 135mm. Check access for moving the unit into place and servicing it once installed.
Indoor or Outdoor Electric Storage Installation
Indoor considerations
- Room or cupboard dimensions and safe handling access
- Appropriate drainage and overflow management
- Safe trays and leak control where required
- A suitable floor capable of supporting the filled heater
- Compliant plumbing and electrical clearances
Outdoor considerations
- Suitable stable base and weather-exposure conditions
- Easy access for valve and element servicing
- Electrical isolation and water supply suitability
- Drainage from valves and overflow points
- Compliance with applicable installation instructions
All connections, drainage, electrical work and safety equipment must be assessed and installed by appropriately licensed tradespeople.
Y-Class Enamel, Anode & Polymer Base
Dux describes its Proflo large electric range as using commercial-grade Y-class vitreous enamel, an enlarged protective anode and a tough polymer base. These are design features intended to help protect the storage tank and base over normal service life.
Tank longevity still depends on water chemistry, correct installation, pressure controls and ongoing maintenance. Where water quality is unusually hard, Dux documents alternate anode options; these are not automatically included with this standard supply-only listing.
Dux 125T1 vs 125X1 Narrow Diameter
125T1 - this product
- Standard-diameter Proflo 125L family
- 125L rated delivery / 130L physical storage
- 1090mm overall height
- 530mm tank diameter / 570mm overall width
- 51kg net weight empty
125X1 - different product
- Narrow-diameter Proflo 125L model
- 125L rated delivery / 132L physical storage
- 1300mm overall height
- 490mm tank diameter / 530mm overall width
- 54kg net weight empty
- Different V-Fit plumbing configuration
Both carry a 125L headline rating but they are not dimensionally identical. Choose based on the exact model, access width, height, pipework and replacement requirements.
Dux 125L vs 160L vs 250L
If the current 125L tank regularly runs short, moving to a higher rated storage capacity may be worthwhile. Dux also offers a 160L Proflo and 250L Proflo. Larger tanks can support more draw-off between reheating cycles but require more space and may have different electrical and plumbing considerations.
| Size | Typical reason to consider it |
|---|---|
| 125L Proflo | Smaller households and compatible 125L replacements |
| 160L Proflo | Additional stored hot-water delivery for moderate demand |
| 250L Proflo | Higher demand and more storage, subject to site suitability |
Choose based on real water use, not occupant count alone. Storage water heaters reheat over time and household routines matter.
Delivery to Selected Australian Metro Areas
Hot Water Outlet offers supply-only ordering with metro delivery availability dependent on postcode, freight options and the specific heater. Selected service areas may include Brisbane, Gold Coast, Sydney and Melbourne, subject to confirmation.
For a large boxed water heater, confirm delivery access, unloading arrangements and the intended handover point before purchase. Do not assume delivery includes positioning, lifting into a cupboard or removing the old heater.
Customers in selected metropolitan regions may request assistance obtaining an independent installer quotation after purchase. Hot Water Outlet itself does not carry out plumbing or electrical installation.
Dux Proflo 125L Manufacturer Warranty
According to the Dux Proflo 80L-400L owner's manual, the standard 125T1 has 10 years tank warranty in an eligible single-family dwelling, with 3 years tank warranty in other applications. A separate 1-year parts-and-labour warranty applies under the manufacturer's conditions.
The tank warranty and full parts-and-labour coverage are not the same. After the applicable labour term, labour and related costs may be the owner's responsibility even when a qualifying tank failure remains covered. Claim conditions include correct installation and appropriate water quality. Statutory consumer guarantees remain in addition to warranty terms.
Dux Proflo 125L Frequently Asked Questions
Can I buy the Dux Proflo 125L supply only?
Yes. Hot Water Outlet sells the Dux Proflo 125L as a supply-only electric storage water heater. The listed unit price does not include installation unless explicitly specified in a separate agreement.
Does Hot Water Outlet install Dux hot water systems?
No. Hot Water Outlet does not directly perform installations. Eligible customers may be able to request help obtaining quotes from independent licensed local tradespeople in selected metropolitan areas.
Can I request an installation quote after purchase?
You can request assistance finding an independent licensed plumber or electrician in selected service areas. Quote availability, acceptance, scheduling and all installation charges remain separate from the unit purchase.
Where can the Dux Proflo 125L be delivered?
Hot Water Outlet offers delivery in selected metropolitan areas, including parts of Brisbane, the Gold Coast, Sydney and Melbourne. Enter your delivery location or confirm availability before ordering.
Is the Proflo 125L a 125-litre or 130-litre tank?
Dux lists 125L rated hot-water delivery and 130L physical storage capacity for the standard 125T1. These are different measures and are not contradictory.
What is the model number?
The standard-diameter 125L model family is Dux Proflo 125T1. Check the actual product variant on the order for the required element wattage.
What element sizes are available?
Dux specifies 1.8kW and 3.6kW single-element options for 125T1. Select the correct unit after checking circuit, tariff and recovery requirements with your electrician.
Is the 125T1 a twin-element heater?
No. The standard Dux Proflo 125T1 is a single-element electric storage model.
How many people can use a 125L Proflo?
Dux positions the 125L size for approximately 2-3 people. Shower duration, flow rates, baths, climate and reheating availability determine actual suitability.
Does it supply mains-pressure hot water?
Yes. Dux describes the Proflo range as supplying full-flow mains-pressure hot water. Actual flow at outlets depends on the property water supply, pipework, fittings and pressure controls.
Can it be installed outdoors?
Yes, in an outdoor position that meets Dux installation instructions and applicable electrical, plumbing, drainage and clearance requirements.
Can it be installed indoors?
Yes, subject to suitable access, floor support, drainage, safe tray requirements where applicable, and compliant plumbing and electrical installation.
What are the dimensions of the standard 125T1?
Dux lists 1090mm overall height, 530mm tank diameter and 570mm overall diameter allowing for connection projection. Allow additional installation and service clearance.
How much does the Dux 125T1 weigh?
The Dux brochure specifies 51kg empty. The filled unit is much heavier; the installer must confirm base support and safe handling.
Does it have water connections on both sides?
Yes. The standard 125T1 uses dual-sided water connections, helpful for some replacements, but pipework compatibility must still be checked.
Is this the narrow-diameter Dux 125X1?
No. This listing is for the standard-diameter 125T1. The narrower and taller 125X1 is a different model family with different dimensions and connection geometry.
Can I use off-peak electricity?
Suitability depends on the circuit, available heating time, element rating and daily water demand. Ask your licensed electrician to check the power supply and intended tariff before ordering.
What is the pressure-relief specification?
The Dux range brochure specifies a 1400kPa relief valve rating and a maximum listed inlet pressure of 1120kPa for this model. A licensed installer must assess and provide compliant pressure and expansion controls.
What warranty does the Dux Proflo 125L have?
Dux specifies 10 years of tank cover for eligible single-family dwellings, three years for other applications, and one year for parts and labour. Manufacturer warranty conditions and Australian Consumer Law rights apply.
Does supply only include new valves or electrical work?
No. Unless specifically stated, supply only is the unit itself. New valves, electrical connections, plumbing alterations, drainage, trays, bases, removal and disposal are separate.
Can this replace another brand of 125L electric heater?
Potentially. Check dimensions, connection positions, element wattage, electrical supply, water pressure, access and current installation rules before purchasing.
Is the Dux Proflo 125L made in Australia?
Yes. Dux identifies its Proflo large electric range, including the standard 125T1, as made in Australia.
Order the Dux Proflo 125L Supply Only
Choose the correct 125T1 element configuration, confirm your site's dimensions and electrical suitability, then purchase the Dux Proflo 125L from Hot Water Outlet. Independent licensed installation can be arranged separately; in selected metro areas, HWO may be able to assist with quote enquiries.
Unit supply only. Installation, valves, labour, electrical work and old-unit disposal are not included unless separately specified.
Manufacturer reference information: Dux Proflo 125L official product page; Dux 2026 Range Brochure (Proflo Electric Storage specifications); Dux Proflo 80L-400L Owner's Manual (warranty). All purchases remain subject to the variant shown on the product order.
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.
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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.
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