Rinnai Enviroflo GR - Series 215L Heat Pump Hot Water System - Installed Today Rinnai Enviroflo GR - Series 280L Heat Pump Hot Water System - Installed Today
Hot Water Systems Delivered Australia Wide

Hot Water Systems Online

Shop hot water systems online with Hot Water Outlet. Browse electric, gas, instant and heat pump hot water systems from leading brands, with clear product information to help you compare sizes, energy types, household suitability and key features before you order. Find the right hot water unit for your home, rental property, renovation or replacement project, with Australia-wide delivery available on eligible products.

Why customers choose Hot Water Outlet

Shop hot water systems, valves, fittings, pumps, filters, and accessories online with clear product details, competitive pricing, helpful support, and delivery to eligible Australian postcodes.

Build Your Hot Water Order

Choose your hot water system first, then add the valves, pipework and accessories needed to complete the setup. Hot Water Outlet makes it easier to compare products, match common parts and order everything online in one place.

01

Choose Your Hot Water System

Select the right heater for your property, including electric hot water systems, heat pump hot water systems, instant gas hot water systems and gas storage hot water units.

Compare tank sizes, flow rates, energy types, gas types, household suitability, dimensions, connection points and trusted hot water brands before you order.

02

Add the Valves You Need

Choose common hot water valves and safety components such as tempering valves, pressure relief valves, duo valves, non-return valves and related valve accessories.

03

Add Pipework & Accessories

Complete your order with hot water pipework, fittings and connection accessories for electric, gas, instant and heat pump hot water system setups.

82 products
Sale
Vulcan 250L Electric Hot Water System - Installed Today
Vulcan 250L Electric Hot Water System
from $1,069.00 Regular price $1,349.00 Save $280
Sale
Rinnai B26 LPG Gas Hot Water System - Installed Today
Rinnai B26 LPG Gas Hot Water System - Installed Today
Rinnai Infinity B26 LPG Gas Hot Water System
from $1,059.00 Regular price $1,299.00 Save $240
Sale
Rheem STELLAR 125L Electric Hot Water System - Installed Today
Rheem STELLAR 315L Electric Hot Water System - Installed Today
Rheem STELLAR 125L Electric Hot Water System
from $1,139.00 Regular price $1,399.00 Save $260
Sale
Rinnai 50L Electric Hot Water System - Installed Today
Rinnai 50L Electric Hot Water System - Installed Today
Rinnai 50L Electric Hot Water System
from $489.00 Regular price $599.00 Save $110
Sale
Dux 50L Electric Hot Water System - Installed Today
Dux 50L Electric Hot Water System - Installed Today
Dux 50L Electric Hot Water System
Sale price $529.00 Regular price $649.00 Save $120
Sale
Rheem 50L Electric Hot Water System - Installed Today
Rheem 50L Electric Hot Water System - Installed Today
Rheem 50L Electric Hot Water System
from $549.00 Regular price $699.00 Save $150
Sale
Vulcan 50L Electric Hot Water System - Installed Today
Vulcan 50L Electric Hot Water System - Installed Today
Vulcan 50L Electric Hot Water System
from $559.00 Regular price $699.00 Save $140
Sale
Rinnai 125L Electric Hot Water System - Installed Today
Rinnai 125L Electric Hot Water System - Installed Today
Rinnai 125L Electric Hot Water System
from $719.00 Regular price $899.00 Save $180
Sale
Vulcan 125L Electric Hot Water System - Installed Today
Vulcan 160L Electric Hot Water System - Installed Today
Vulcan 125L Electric Hot Water System
from $809.00 Regular price $999.00 Save $190
Sale
Rheem Metro 26 LPG Gas Hot Water System - Installed Today
Rheem Metro 26 LPG Gas Hot Water System - Installed Today
Rheem 16 Natural Gas Hot Water System
from $849.00 Regular price $1,049.00 Save $200

Hot Water Systems

Shop hot water systems online from Hot Water Outlet, with fast delivery across Australia and same day delivery available in select metro areas on eligible orders. This collection brings together electric hot water systems, gas hot water systems, heat pump hot water systems, continuous flow units, storage tanks, valves, connections, fittings, spare parts and accessories for homes, rentals, trade supply, maintenance and replacement projects.

Whether you are replacing an old hot water unit, comparing energy types, matching an existing model, upgrading capacity or ordering the extra parts needed for a hot water changeover, Hot Water Outlet makes it easier to find the right hot water system and related supplies in one place.

Buy Hot Water Systems Online

Choosing a hot water system is not always as simple as picking the same size tank. The best option depends on your household size, hot water usage, available energy source, storage space, connection layout, water pressure and whether you need a storage or continuous flow system.

This collection may include:

Electric storage hot water systems
Gas storage hot water systems
Gas continuous flow hot water systems
Heat pump hot water systems
Solar compatible hot water products
Small hot water systems
Large capacity hot water systems
Indoor and outdoor hot water units
Natural gas hot water systems
LPG hot water systems
Hot water valves
Hot water connection kits
Pipework and fittings
Hot water spare parts and accessories

Fast Hot Water System Delivery Across Australia

Hot Water Outlet supplies hot water systems and related products across Australia, with fast dispatch available on eligible stocked items. Same day delivery may be available in select metro areas depending on stock, order time, product size and delivery location.

This is especially useful when an old hot water system has failed, a replacement unit is needed quickly, or a trade customer needs a system, valve, fitting or spare part delivered without delay.

Choosing the Right Hot Water System

Before ordering a hot water system, check the details of your existing unit and compare them with the product specifications. Matching the right system type, capacity, fuel source, pressure rating and connection layout helps reduce delays and ordering mistakes.

Check these details before buying:

System type
Brand and model number
Storage capacity in litres
Flow rate in L/min for continuous flow units
Natural gas, LPG or electric power requirements
Water pressure rating in kPa
Indoor, outdoor or external suitability
Hot and cold water connection locations
Inlet and outlet connection sizes
Available space for the unit
Household hot water demand
Required valves, fittings and accessories
Delivery access for larger units

If you are unsure which system is suitable, compare the specifications carefully or speak with a licensed plumber before ordering.

Electric, Gas, Heat Pump and Continuous Flow Hot Water

Electric hot water systems are a common choice for homes, apartments, rentals and replacement jobs. They use an electric element to heat stored water and are available in a range of capacities.

Gas hot water systems use natural gas or LPG and may be available as storage or continuous flow units. Always check whether the product is natural gas or LPG before ordering, as they are not interchangeable unless the product is specifically designed or converted for that fuel type.

Heat pump hot water systems use surrounding air to help heat water and are often chosen by customers looking for an energy efficient storage hot water option.

Continuous flow hot water systems heat water as it passes through the unit instead of storing it in a tank. These systems are commonly compared by flow rate in L/min and must be selected carefully to suit household demand and fuel type.

Hot Water Systems for Homes, Rentals and Trade Supply

Hot Water Outlet supplies hot water systems for a wide range of residential and trade needs. Whether you need a compact unit for a small property, a larger storage tank for family use, a continuous flow system for regular demand, or spare parts to support a replacement job, this collection is designed to make ordering easier.

This collection is suitable for:

Home hot water replacement
Rental property maintenance
Trade supply orders
Renovation projects
New property fit-outs
Spare unit supply
Emergency replacement planning
Hot water maintenance parts
Valves, fittings and connection supplies

Hot Water System Parts, Valves and Accessories

A hot water system often requires more than the main unit. Valves, pipework, fittings and spare parts can be needed to match the system, manage pressure, control temperature and connect the unit correctly.

Common hot water products used with systems include:

Tempering valves
Pressure limiting valves
Expansion control valves
PTR valves
Isolation valves
Non-return valves
Hot water connection kits
Copper connections
Braided connections
Unions and adaptors
Thermostats and elements
Anodes
Drain cocks
Spare parts and service accessories

Ordering compatible parts with the system can help reduce delays and make sure the right products are ready when needed.

Why Buy Hot Water Systems From Hot Water Outlet?

Hot Water Outlet is focused on hot water supply, making it easier to shop for hot water systems, valves, fittings, spare parts and accessories in one place. Instead of searching through general plumbing catalogues, customers can compare hot water products and order the items they need quickly.

Shop with Hot Water Outlet for:

Hot water systems from trusted brands
Fast delivery across Australia
Same day delivery in select metro areas on eligible orders
Electric, gas, heat pump and continuous flow options
Valves, pipework, fittings and spare parts
Clear product specifications
Products for homes, rentals and trade supply
Easy online ordering

Hot Water System Questions

What type of hot water system should I buy?

The right type depends on your household size, daily hot water use, available energy source, space, budget and whether you prefer a storage tank or continuous flow unit. Electric storage, gas storage, gas continuous flow and heat pump systems all suit different situations.

What size hot water system do I need?

The right size depends on how many people use hot water, how many bathrooms the property has, the number of showers taken each day, appliance use and the system type. Storage systems are usually compared by litres, while continuous flow systems are compared by flow rate in L/min.

Is a continuous flow hot water system better than a storage tank?

Continuous flow systems heat water as needed and do not store a tank of hot water. Storage systems heat and hold water in a tank ready for use. The better option depends on energy source, household demand, space, water pressure and product suitability.

What is the difference between natural gas and LPG hot water systems?

Natural gas systems are designed for properties connected to a natural gas supply. LPG systems are designed for bottled gas. They are not the same, so always check the fuel type before ordering a gas hot water system.

Do I need valves with a new hot water system?

Many hot water systems require suitable valves and fittings to match the system type, pressure rating and connection requirements. Common valves include tempering valves, PTR valves, pressure limiting valves and expansion control valves.

What kPa rating should I check?

The kPa rating relates to system and valve pressure requirements. When replacing a hot water system or valve, check the rating on the existing unit, the product specifications and any required matching components.

Can I buy hot water spare parts online?

Yes. Hot Water Outlet sells hot water spare parts, valves, fittings, connections and accessories for a wide range of hot water system needs.

Do you sell hot water systems Australia wide?

Yes. Hot Water Outlet supplies hot water systems, parts and accessories across Australia, with delivery options depending on stock, product size and delivery location.

Is same day delivery available for hot water systems?

Same day delivery may be available in select metro areas on eligible hot water systems and orders. Availability depends on stock, order time, product size and delivery location.

What should I check before ordering a replacement hot water system?

Check the current brand, model, capacity, fuel type, power requirements, kPa rating, connection positions, system dimensions and whether any valves, fittings or accessories are also required.

Order Hot Water Systems Online

Shop hot water systems online with Hot Water Outlet and get the products you need delivered fast. From electric, gas, heat pump and continuous flow units to valves, pipework, fittings, spares and accessories, Hot Water Outlet makes it easier to buy hot water products across Australia.

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Hot Water Outlet Help

Hot Water System FAQs

Common questions about choosing, comparing and ordering hot water systems online with Hot Water Outlet. We sell supply-only hot water products and can help organise quotes from reputable installers where appropriate.

Can I buy a hot water system supply only?

Yes. Hot Water Outlet sells hot water systems as supply-only products. This means the listed product price is for the hot water system only and does not include installation, valves, old unit removal, disposal, electrical work, gas work, pipework changes or compliance upgrades unless those items are clearly listed separately.

Does Hot Water Outlet install hot water systems?

No. Hot Water Outlet does not install hot water systems. We supply hot water systems, parts and accessories online, and can help organise quotes from reputable installers where appropriate. Final installation pricing, availability and site requirements are handled by the installer quoting the job.

Can you help me organise an installation quote?

Yes. While Hot Water Outlet does not complete installations, we may be able to help organise quotes from reputable installers. Your quote will depend on the product selected, your location, access, existing setup, compliance requirements and any electrical, plumbing or gas work needed.

What size hot water system do I need?

The right size depends on household size, shower habits, available space, energy source and how much hot water your home uses each day. Smaller households may suit compact storage systems, while larger homes often compare 250L, 315L or continuous flow options.

What is the difference between LPG and natural gas hot water systems?

LPG and natural gas systems are not the same. You need to choose the correct gas type for your property, as a natural gas model should not be used on LPG unless the product is specifically designed or converted for that use by a qualified person.

Are external gas hot water units suitable for indoor use?

External gas hot water units are designed for outdoor installation only. They should not be used indoors unless the manufacturer specifically states the model is suitable for internal or flued installation. Always check the product specifications and confirm suitability with a licensed gas fitter.

Do I need to buy valves, pipework or fittings separately?

Some hot water replacements may require valves, pipework, fittings or other accessories depending on the existing setup and current compliance requirements. Hot Water Outlet sells hot water valves, pipework and fittings online, but your licensed installer should confirm exactly what is required for your property.

Does the product price include old system removal or disposal?

No. Product pricing on Hot Water Outlet is for the product only unless clearly stated otherwise. Old system removal, disposal, access equipment, electrical work, gas work, plumbing changes and compliance upgrades should be quoted separately by the installer or licensed tradesperson completing the work.

Can I replace my old hot water system with the same type?

In many cases, replacing like-for-like can be a practical option, but the new system still needs to suit your household demand, available space, gas or electrical connection, plumbing layout and current compliance requirements. A licensed installer should confirm suitability before installation.

What brands of hot water systems can I choose from?

Hot Water Outlet offers a range of trusted hot water brands across electric, gas, continuous flow, solar and heat pump options. Available brands and models may vary depending on stock, product type, size, gas type and suitability for your property.