Hot Water System Brisbane: How to Choose the Right System for Your Home

Oct 8, 2024

Choosing the right hot water system in Brisbane comes down to more than finding the cheapest unit. The best system depends on your household size, number of bathrooms, shower habits, energy source, outdoor space, gas type, water pressure, electrical requirements and whether you want supply only or an eligible supplied-and-installed option.

Brisbane homes commonly compare electric storage, gas storage, instant gas, instant electric, heat pump and solar hot water systems. Each option has different upfront costs, running costs, installation requirements and suitability.

Installed Today makes it easy to compare and order hot water systems online, with supply-only ordering available across major Australian metro areas and selected supplied-and-installed options available on eligible products in Brisbane and Gold Coast service areas.

Quick Answer: What Is the Best Hot Water System for Brisbane?

The best hot water system for a Brisbane home depends on the property and household.

As a general guide:

Electric storage hot water can suit simple replacements and homes without gas
Gas storage hot water can suit homes already connected to natural gas or LPG
Instant gas hot water can suit homes wanting continuous flow hot water without a large tank
Heat pump hot water can suit energy-focused Brisbane homes with suitable outdoor space, airflow and drainage
Instant electric hot water can suit small point-of-use applications, but may not suit whole-home shower demand
Solar hot water can suit homes with suitable roof space, sun exposure and booster planning

Before ordering supply only, confirm the correct size, model, gas type, water pressure, electrical requirements, access, valves, drainage and installation suitability with your licensed installer.

Brisbane Hot Water System Options

Brisbane homes have several hot water options to compare. The right choice depends on whether the home has electricity only, natural gas, LPG, rooftop solar, outdoor space for a heat pump or suitable wall space for instant gas.

The main options are:

Electric storage hot water systems
Gas storage hot water systems
Instant gas hot water systems
Instant electric hot water systems
Heat pump hot water systems
Solar hot water systems

A unit that suits a small apartment may not suit a large family home. A system that looks cheap upfront may not be the best value once running costs, installation requirements and household demand are considered.

Electric Hot Water Systems in Brisbane

Electric hot water systems are common in Brisbane homes, especially where natural gas is not available or where the existing system is already electric.

Electric storage systems heat water inside a tank and keep it ready for use. They are often chosen for like-for-like replacements because they are familiar, widely available and available in a range of sizes.

Electric hot water can suit:

Homes without natural gas or LPG
Straightforward electric storage replacements
Rental properties
Small, medium and larger households
Homes already wired for electric storage
Customers wanting a simple storage tank setup

Common size categories include 250L electric hot water systems, 315L electric hot water systems and 400L electric hot water systems.

A 250L system may suit many small-to-medium households, while larger families or homes with high shower demand may need 315L or 400L. If your old electric hot water system regularly ran out, replacing it with the same size may repeat the same issue.

Popular electric storage options include:

Gas Hot Water Systems in Brisbane

Gas hot water systems can suit Brisbane homes that already have natural gas or LPG available.

Gas hot water systems generally fall into two groups:

Gas storage hot water
Instant gas hot water

Gas systems can suit homes that:

Already have natural gas or LPG
Want fast hot water recovery
Prefer gas over electric storage
Have a suitable outdoor installation location
Want to compare storage and continuous flow options
Have household demand that suits gas hot water

Gas work must be completed by a licensed gas fitter. Natural gas and LPG units are not interchangeable, so the correct gas type must be selected before ordering.

Gas Storage Hot Water Systems

Gas storage systems heat and store hot water in a tank. They can be a practical option for Brisbane homes already set up for gas and wanting stored hot water ready for household use.

Common gas storage categories include:

Product examples include:

Gas storage may suit homes that prefer a familiar tank-style system, but the correct gas type, outdoor location and installation requirements still need to be checked.

Instant Gas Hot Water Systems in Brisbane

Instant gas hot water systems, also called continuous flow hot water systems, heat water as it passes through the unit. They do not store a full tank of hot water.

Instant gas can suit Brisbane homes that:

Want continuous flow hot water
Want to save space compared with a storage tank
Have suitable natural gas or LPG supply
Have sufficient water pressure
Have suitable outdoor wall space
Want to compare 16L, 20L and 26L options

Larger households often compare 26L instant gas hot water systems, but a 26L system only works properly if gas pipe sizing and water pressure support it.

Popular instant gas options include:

External gas hot water units are designed for outdoor installation unless the specific manufacturer model is approved for internal flued installation.

Heat Pump Hot Water Systems in Brisbane

A heat pump hot water system is an electric hot water system that uses heat from the surrounding air to help heat stored water. In the right location, this can reduce electricity use compared with standard electric storage.

Brisbane’s warmer climate can suit many heat pump installations, but the system still needs the right location, airflow, drainage and electrical setup.

Heat pumps can suit Brisbane homes that:

Want to reduce hot water energy use
Are replacing an older electric storage system
Have suitable outdoor space
Have clear airflow around the unit
Can manage condensate drainage
Have suitable electrical supply
Have a sensible noise location
Want to pair hot water heating with rooftop solar where timing and usage suit

A heat pump is not automatically right for every home. It should not be placed in a tight, enclosed area with poor airflow. Noise placement, access and condensate drainage should be checked before ordering.

Many homes compare medium heat pump hot water systems 200L–280L, while larger households may need large heat pump hot water systems. Customers wanting smart features may also compare Wi-Fi enabled heat pump hot water systems.

Popular heat pump options include:

Instant Electric Hot Water Systems in Brisbane

Instant electric hot water systems heat water on demand using electric heating elements.

They may suit:

Small sinks
Offices
Compact kitchens
Granny flats
Low-demand fixtures
Point-of-use hot water
Space-limited applications

Instant electric systems can have high electrical demand. They are not always suitable for whole-home hot water or multiple showers. A licensed electrician or installer should confirm whether the property can support the selected unit before ordering.

Solar Hot Water Systems in Brisbane

Solar hot water can suit Brisbane homes with strong roof suitability, good sun exposure and the right booster setup. Brisbane’s sunny climate can make solar hot water appealing, but roof space, shading and installation complexity still matter.

Solar hot water may suit homes with:

Suitable roof space
Good sun exposure
Minimal shading
Suitable roof orientation
Long-term energy efficiency goals
Space for the tank and collector arrangement
Electric or gas booster planning

Solar hot water can reduce grid energy use where conditions suit, but it is not always the simplest replacement. For some Brisbane homes, a heat pump may be easier to compare than roof-mounted solar hot water, especially where roof space, shading or access is an issue.

Electric vs Gas vs Heat Pump for Brisbane Homes

System Type	Best Suited To	Key Considerations
Electric storage	Simple replacement, homes without gas	Running cost depends on tariff, size and usage
Gas storage	Homes with natural gas or LPG wanting stored hot water	Correct gas type and licensed gas fitting required
Instant gas	Continuous flow hot water and compact outdoor installation	Gas pipe sizing and water pressure must support the unit
Instant electric	Small point-of-use applications	Whole-home use may require significant electrical capacity
Heat pump	Efficiency-focused homes with suitable outdoor space	Needs airflow, drainage, access and noise planning
Solar hot water	Homes with suitable roof space and sun exposure	Booster setup, roof conditions and upfront cost need checking

The right system is the one that suits your home, not just the one with the lowest upfront price.

Choosing the Right Size Hot Water System

Correct sizing is one of the most important parts of choosing a Brisbane hot water system.

A system that is too small may run out during peak use. A system that is too large may cost more than needed and may not suit the household’s usage pattern.

When choosing size, consider:

Number of people in the home
Number of bathrooms
Shower length
Bath use
Kitchen and laundry habits
Whether multiple showers run at once
Morning and evening peak demand
Existing system size
Whether the old system ran out of hot water
Available energy source
Recovery rate
Installation space

For electric storage, many homes compare 250L, 315L and 400L systems.

For heat pumps, many homes compare 250L to 280L systems, with larger households considering 280L-plus options.

For instant gas, common sizes include 16L, 20L and 26L.

Hot Water Systems for Small Brisbane Homes

Small households may suit:

Smaller electric storage systems
16L instant gas where gas supply is suitable
Instant electric for small point-of-use needs
Selected heat pumps if outdoor space and airflow suit

Avoid oversizing unless the home has unusually high hot water use or future household growth is expected.

Hot Water Systems for Brisbane Family Homes

Family homes often need more careful sizing because hot water use can peak in the morning and evening.

Common options include:

250L electric storage
315L electric storage
Medium heat pump systems
20L instant gas
26L instant gas
Gas storage where suitable

If the existing system regularly runs out, review the size and system type before ordering a replacement.

Hot Water Systems for Larger Brisbane Homes

Larger or high-demand homes may need:

315L or 400L electric storage
Larger heat pump systems
26L instant gas where gas supply and water pressure support it
Larger gas storage options
Installer review of pipework, gas supply, water pressure and fixture demand

Do not choose a larger system without confirming the site can support it. A larger instant gas unit still needs suitable gas pipe sizing and water pressure.

Brisbane Installation Checks Before Ordering

Hot water installation requirements can change the real cost and suitability of a system. Even if the new unit looks similar to the old one, valves, pipework, drainage, gas supply or electrical supply may still need checking.

Before ordering, confirm:

Correct system type
Correct size or flow rate
Correct gas type if choosing gas
Electrical requirements if choosing electric or heat pump
Gas pipe sizing if choosing instant gas
Water pressure
Installation location
Access for delivery and installation
Drainage and overflow points
Tempering valve requirements
Pressure limiting valve requirements
Expansion control valve requirements
Existing pipework condition
Heat pump airflow and noise placement
Whether compliance upgrades are needed

Hot water systems involve plumbing, water pressure, gas and electrical safety. Use licensed trades where required.

Supply-Only Hot Water Systems in Brisbane

Installed Today offers supply-only ordering across major Australian metro areas. This can suit Brisbane customers who already have a licensed installer organised and want to order the product online.

Supply-only may suit you if:

Your installer has confirmed the correct product
You know the right size and model
The correct gas type has been selected
Electrical requirements have been checked
Access and drainage are suitable
You understand what is not included in the product price

For supply-only products, the listed product price generally covers the product only.

It does not usually include:

Installation labour
New valves
Electrical work
Gas work
Pipework changes
Drainage changes
Tempering valve upgrades
Pressure limiting valve upgrades
Expansion control valves
Condensate drainage for heat pumps
Old unit removal
Disposal
Compliance upgrades
Concrete bases or slab work
Relocation of the system

Always check the product page and confirm the full installation requirements with your licensed installer before ordering.

Supplied-and-Installed Hot Water Systems in Brisbane

Selected supplied-and-installed options are available on eligible products in Brisbane and Gold Coast service areas. Availability depends on the product, location and installation requirements.

A supplied-and-installed option may suit customers who want a clearer package pathway for eligible products, but it is still important to check what is included and what may be extra.

Before choosing supplied-and-installed, confirm:

Whether your address is eligible
Whether the selected product is eligible
What installation type is included
Whether valves are included or extra
Whether electrical or gas work is included or extra
Whether old unit removal and disposal are included
Whether pipework or drainage changes are included
Whether the installation is like-for-like or more complex

Do not assume every product or location has an installed option. Check the product page and eligibility details.

Signs You May Need a New Hot Water System

You may need to replace your hot water system if:

The tank is leaking
Hot water runs out regularly
Water temperature is unreliable
Rust or corrosion is visible
Hot water is discoloured
The system is noisy
Repairs are becoming frequent
The unit no longer suits your household
Running costs have increased without another clear cause
The system is old and no longer performing well

If the existing system was undersized, inefficient or poorly located, do not automatically replace it with the same unit.

Rebates, STCs and Incentives

Some hot water systems, especially heat pumps and solar-style upgrades, may be eligible for rebates, STCs or other incentives depending on the product, location and current program rules.

These incentives can change, so check current eligibility before ordering or budgeting around a rebate.

A rebate may improve the value of an upgrade, but the system still needs to suit the household and installation location. Do not choose a product only because it has an incentive attached.

Brand Options to Compare

Installed Today stocks a range of major hot water brands, including:

Brand matters, but the right system type, size, gas type, installation location and site suitability matter more than brand alone.

Common Mistakes When Choosing a Brisbane Hot Water System

Choosing Only by Product Price

The cheapest unit upfront may not be the cheapest system long term. Running costs, installation requirements and system suitability all matter.

Replacing the Same Size Without Checking Demand

If the old system ran out of hot water, the same size may not be enough.

Ignoring Gas Type

Natural gas and LPG units are not interchangeable. Always choose the correct gas type.

Choosing 26L Instant Gas Without Checking the Site

A 26L instant gas system can suit some family homes, but only where gas pipe sizing and water pressure support it.

Choosing Heat Pump Without Checking Location

Heat pumps need airflow, outdoor space, drainage, access and sensible noise placement.

Assuming Instant Electric Suits the Whole Home

Instant electric systems can have high electrical demand and may be better suited to point-of-use applications.

Assuming Supply-Only Includes Installation

Supply-only generally means product only unless installation is selected or clearly shown.

Before Ordering Checklist

Before ordering a hot water system in Brisbane, confirm:

Number of people in the home
Number of bathrooms
Shower habits
Peak hot water demand
Existing system type
Existing system size
Whether the old system ran out of hot water
Electric, natural gas or LPG availability
Correct gas type
Electrical requirements
Gas pipe sizing for instant gas
Water pressure
Heat pump airflow and drainage
Outdoor or indoor suitability
Access for delivery and installation
Drainage and overflow requirements
Whether new valves may be needed
Whether rebates or STCs may apply
Whether supply-only or supplied-and-installed is the right option
Installer confirmation before buying supply only

Frequently Asked Questions

What is the best hot water system for Brisbane?

The best hot water system for Brisbane depends on household size, energy source, budget and installation location. Electric storage, gas storage, instant gas and heat pump systems can all suit different homes.

Is electric or gas hot water better in Brisbane?

Electric hot water can suit homes without gas or simple replacements. Gas hot water can suit homes already set up for natural gas or LPG. Natural gas and LPG units are not interchangeable.

Are heat pump hot water systems good in Brisbane?

Heat pumps can suit many Brisbane homes because the climate is generally favourable, but the system still needs suitable outdoor space, airflow, drainage, electrical supply and noise placement.

What size hot water system do I need in Brisbane?

The right size depends on people in the home, bathrooms, shower habits, bath use, peak demand and whether the old system ran out. Common options include 250L, 315L and 400L electric storage, 250L to 280L heat pumps and 16L to 26L instant gas systems.

Is instant gas hot water good for Brisbane families?

Instant gas can suit families where the system is correctly sized and the property has suitable gas supply and water pressure. Larger households often compare 26L instant gas systems.

Can I order a hot water system supply only in Brisbane?

Yes. Supply-only ordering can suit Brisbane customers who already have a licensed installer organised. Confirm the model, size, gas type, electrical requirements and site suitability before ordering.

Does Installed Today offer supplied-and-installed hot water systems in Brisbane?

Selected supplied-and-installed options are available on eligible products in Brisbane and Gold Coast service areas. Availability depends on the product, address and installation requirements.

Can I install a hot water system myself?

No. Hot water systems involve plumbing, gas, electrical work, water pressure, valves and compliance requirements. Use licensed trades.

What is not included in supply-only hot water pricing?

Supply-only pricing generally excludes installation, valves, electrical work, gas work, pipework changes, drainage, old unit removal, disposal and compliance upgrades unless selected or clearly shown.

Final Word

A hot water system in Brisbane should be chosen around the home, not just the product price. Electric storage can suit simple replacements. Gas storage and instant gas can suit homes already set up for natural gas or LPG. Heat pumps can suit energy-focused homes with suitable outdoor locations. Instant electric can suit small point-of-use applications. Solar can suit homes with strong roof suitability and booster planning.

Before ordering supply only, confirm the size, model, gas type, electrical requirements, access, drainage and compliance needs with your licensed installer. If choosing an eligible supplied-and-installed option in Brisbane, check exactly what is included before placing the order.

The best Brisbane hot water system is the one that suits your household demand, energy source, installation location and long-term running cost expectations.

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