Hot Water System Replacement Cost: Australian Buyer’s Guide

Hot water system replacement cost can vary widely depending on the system type, household size, energy source, installation location, access, valves, pipework, electrical work, gas work, drainage, old unit removal, disposal and compliance requirements.

A simple like-for-like replacement is usually much easier than changing from electric to gas, upgrading to heat pump hot water, switching from gas storage to instant gas, relocating the unit, increasing tank size or correcting old non-compliant work.

This guide explains what affects hot water system replacement cost in Australia, how electric, gas, instant and heat pump systems compare, and what to check before ordering a replacement.

You can compare Hot Water Systems, Electric Hot Water Systems, Instant Electric Systems, Gas Hot Water Systems, Instant Gas Hot Water Systems, Heat Pump Hot Water Systems and Installation Add-Ons online with Installed Today.

Quick answer: what affects hot water system replacement cost?

Hot water system replacement cost depends on the product and the installation pathway.

The biggest cost factors include:

• Existing hot water system type

• New hot water system type

• Like-for-like replacement or system change

• Electric, natural gas, LPG or heat pump

• Tank size or flow rate

• Indoor or outdoor location

• Access to the existing system

• Pipework condition

• Valve requirements

• Electrical work

• Gas work

• Drainage

• Condensate drainage for heat pumps

• Old unit removal

• Disposal

• Base or slab condition

• Compliance upgrades

• Supply-only vs supplied-and-installed option where available

The cheapest product is not always the cheapest final replacement. The existing installation can change the total cost significantly.

Hot water replacement cost by system type

Different hot water system types have different cost factors.

The right replacement depends on your current system, household demand and property setup.

Product price vs replacement cost

The product price is only one part of the total replacement cost.

A hot water replacement may also involve:

• Labour

• Valves

• Pipework changes

• Electrical work

• Gas work

• Drainage work

• Condensate drainage

• Old unit removal

• Disposal

• Base or slab work

• Additional materials

• Access allowances

• Compliance upgrades

• Installation add-ons

When comparing systems, look at the full replacement pathway rather than just the unit price.

Like-for-like hot water replacement

A like-for-like replacement usually means replacing the existing system with a similar new system in the same location.

Examples include:

• Electric storage to electric storage

• Gas storage to gas storage

• Instant gas to instant gas

• Heat pump to heat pump

• Instant electric to instant electric

Like-for-like replacement may be more straightforward when:

• The old system type worked well

• Household demand has not changed

• The existing location is suitable

• Pipework is suitable

• Valves are compliant

• Electrical or gas supply is suitable

• Drainage is suitable

• Access is easy

• The old unit can be removed safely

• The new product fits the space

Like-for-like is not always the best option. If the old system ran out, was expensive to run or no longer suits the household, compare alternatives before ordering.

Changing hot water system type

Changing system type can increase replacement cost.

Common changes include:

• Electric storage to heat pump

• Electric storage to gas

• Gas storage to instant gas

• Instant gas to heat pump

• Electric storage to instant electric

• Gas to electric

• Indoor system to outdoor system

• Small tank to larger tank

• Storage tank to continuous flow

Changing system type may require:

• New pipework

• Electrical upgrades

• Gas pipework

• Drainage changes

• Condensate drainage

• New base or mounting

• Old unit removal

• Disposal

• Compliance upgrades

• Installer assessment

Changing system type can be worthwhile, but it should be planned properly before ordering.

Electric hot water replacement cost factors

Electric Hot Water Systems are common for homes, units, townhouses, rentals and simple like-for-like replacements.

Electric storage replacement cost may depend on:

• Tank size

• Brand and model

• Indoor or outdoor location

• Existing electrical supply

• Element size

• Existing pipework

• Valve requirements

• Tempering valve requirements

• Pressure limiting valve requirements

• Expansion control valve requirements where applicable

• Drainage

• Access

• Base or support condition

• Old unit removal

• Disposal

• Compliance upgrades

Electric storage can be practical where the home already has an electric tank and the existing system size still suits the household.

Instant electric replacement cost factors

Instant Electric Systems are usually better suited to selected applications rather than every whole-home replacement.

Instant electric replacement cost may depend on:

• Point-of-use or whole-home application

• Flow rate required

• Temperature rise required

• Switchboard capacity

• Circuit requirements

• Cable size

• Existing wiring

• Water pressure

• Pipework

• Access

• Compliance requirements

Instant electric systems can be compact, but their electrical requirements can be significant. They should not be chosen without checking electrical suitability.

Gas hot water replacement cost factors

Gas Hot Water Systems may suit homes already using natural gas or LPG.

Gas storage replacement cost may depend on:

• Natural gas or LPG

• Tank size

• Existing gas supply

• Gas pipework

• Water pressure

• Valve requirements

• Drainage

• Base or slab condition

• Access

• Old unit removal

• Disposal

• Compliance upgrades

Natural gas and LPG are not interchangeable. The replacement system must match the property’s gas type.

Instant gas replacement cost factors

Instant Gas Hot Water Systems heat water on demand and are often chosen for compact continuous flow hot water.

Instant gas replacement cost may depend on:

• Flow rate in L/min

• Natural gas or LPG

• Gas pipe sizing

• Water pressure

• Electrical power point availability

• Controller wiring where selected

• Wall mounting

• Outdoor clearances

• Pipework changes

• Access

• Old unit removal

• Disposal

• Compliance requirements

A larger instant gas unit may require more gas supply. Flow rate should be matched to the household and the property’s gas and water setup.

Heat pump hot water replacement cost factors

Heat Pump Hot Water Systems are often compared by customers replacing older electric storage tanks.

Heat pump replacement cost may depend on:

• Tank size

• Brand and model

• Outdoor airflow

• Condensate drainage

• Electrical setup

• Timer requirements

• Solar timing setup where relevant

• Noise placement

• Base or slab condition

• Pipework changes

• Valve requirements

• Old unit removal

• Disposal

• Access

• Compliance upgrades

• Rebate or certificate eligibility where applicable

Heat pump hot water can use less electricity than standard electric storage in suitable conditions, but it is more site-specific than a basic electric tank.

Electric storage vs heat pump replacement cost

Electric storage and heat pump hot water are both electric options, but they have different cost structures.

Choose electric storage where simplicity and lower upfront product cost matter.

Choose heat pump where site suitability and long-term efficiency are priorities.

Gas storage vs instant gas replacement cost

Gas storage and instant gas both use gas, but they suit different homes.

A gas storage replacement may be simpler if the old tank worked well.

Instant gas may suit customers wanting compact continuous flow hot water where gas pipe sizing and water pressure support it.

Electric vs gas hot water replacement cost

Electric and gas replacement costs depend on the existing energy source.

Electric hot water may suit:

• Homes without gas

• Units and townhouses

• Simple electric storage replacement

• Properties with suitable electrical supply

• Homes considering heat pump upgrades

• Customers wanting stored hot water

Gas hot water may suit:

• Homes already connected to natural gas or LPG

• Existing gas storage replacement

• Existing instant gas replacement

• Homes with suitable gas pipe sizing

• Customers wanting continuous flow gas hot water

Changing from electric to gas or gas to electric can increase replacement complexity.

Heat pump vs gas replacement cost

Heat pump and gas hot water suit different goals.

Heat pump hot water may suit:

• Homes replacing electric storage

• Homes with rooftop solar

• Homes without gas

• Customers moving away from gas

• Properties with suitable outdoor airflow

• Properties with suitable condensate drainage

Gas hot water may suit:

• Homes already connected to natural gas or LPG

• Customers replacing existing gas hot water

• Properties with suitable gas pipe sizing

• Homes where heat pump airflow or drainage is difficult

• Customers wanting instant gas continuous flow

The best choice depends on energy source, site requirements and long-term goals.

Hot water system size and replacement cost

Size affects product cost, space, recovery and suitability.

For storage systems, size is usually tank capacity in litres.

For instant systems, size is usually flow rate in litres per minute.

As a general guide:

Choose based on real hot water usage, not just bedroom count.

Replacing a 125L hot water system

A 125L hot water system may suit:

• One to two people

• Small units

• Low-demand homes

• Some rental properties

• Compact locations

• Homes with moderate shower use

Before replacing with another 125L system, check whether the old tank ran out, whether the household has grown, and whether a larger size or heat pump option would suit better.

Replacing a 160L hot water system

A 160L system may suit:

• Two-person homes

• Small families with moderate use

• Units or townhouses

• Homes needing more capacity than 125L

• Properties where space is limited

Check shower habits, bath use, guest use and heating schedule before choosing another 160L system.

Replacing a 250L hot water system

A 250L system is commonly compared for 3 to 4 person households.

It may suit:

• Family homes

• Rentals

• One or two bathroom properties

• Homes with moderate hot water use

• Like-for-like electric storage replacement

• Some gas storage or heat pump comparisons depending on product type

If the old 250L system ran out often, reassess demand before ordering the same size.

Replacing a 315L hot water system

A 315L system may suit larger households or higher-demand properties.

It may be considered for:

• Larger families

• Homes with multiple bathrooms

• Higher shower demand

• Rentals with likely higher occupancy

• Homes with off-peak electric storage

• Some heat pump upgrades

Check space, access, electrical setup, base condition and recovery needs before ordering.

Replacing a 400L hot water system

A 400L system may be considered for large households or very high hot water demand.

Before choosing 400L, confirm:

• Number of people

• Number of bathrooms

• Shower habits

• Bath use

• Laundry use

• Peak demand

• Available space

• Access

• Energy source

• Base requirements

• Whether heat pump hot water may be a better long-term option

Bigger is not automatically better. Choose based on actual household demand.

Brand and model replacement cost differences

Brand and model can affect product price, warranty terms, dimensions, connection points, flow rate, tank size and availability.

Installed Today’s homepage-linked hot water brands include:

• Rheem Hot Water Systems

• Rinnai Hot Water Systems

• Dux Hot Water Systems

• Vulcan Hot Water Systems

• Stiebel Eltron Hot Water Systems

• Aquamax Hot Water Systems

• Bosch Hot Water Systems

• iStore Hot Water Systems

• Enviroheat Hot Water Systems

• Aquatech / Hydrotherm Hot Water Systems

Compare by system type, size, warranty, installation requirements and household suitability.

Rheem hot water replacement

Rheem Hot Water Systems are commonly compared by customers wanting a major hot water brand.

Rheem may suit:

• Electric storage replacement

• Gas storage replacement

• Instant gas comparison

• Heat pump comparison

• Family-sized systems

• Customers wanting a recognised brand

Before choosing Rheem, check system type, tank size or flow rate, gas type where relevant, dimensions, warranty terms and installation requirements.

Rinnai hot water replacement

Rinnai Hot Water Systems are commonly compared across gas, electric and heat pump hot water.

Rinnai may suit:

• Instant gas replacement

• Electric storage comparison

• Heat pump comparison

• Customers familiar with the brand

• Homes comparing multiple energy types

Before choosing Rinnai, check exact product type, capacity or flow rate, gas type where relevant, water pressure and installation requirements.

Dux hot water replacement

Dux Hot Water Systems are commonly compared for electric storage, gas and broader hot water replacement.

Dux may suit:

• Electric storage replacement

• Gas storage replacement

• Rental properties

• Family homes

• Customers comparing mainstream hot water brands

Check capacity, warranty terms, dimensions, connection positions and total replacement pathway before ordering.

Vulcan hot water replacement

Vulcan Hot Water Systems may suit customers looking for a value-focused replacement.

Vulcan may suit:

• Budget-conscious replacements

• Rental properties

• Simple storage hot water needs

• Like-for-like replacement where suitable

• Customers comparing upfront product cost

Before choosing Vulcan, check warranty terms, capacity, installation requirements and total replacement cost.

Stiebel Eltron hot water replacement

Stiebel Eltron Hot Water Systems are commonly compared for compact electric, instant electric and premium electric hot water options.

Stiebel Eltron may suit:

• Instant electric comparisons

• Compact electric applications

• Units and small spaces

• Premium electric hot water comparisons

• Homes with suitable electrical capacity

Before choosing Stiebel Eltron, check flow rate, electrical requirements, tank size where applicable and application suitability.

iStore hot water replacement

iStore Hot Water Systems are commonly compared by customers wanting heat pump hot water.

iStore may suit:

• Electric storage to heat pump upgrades

• Rooftop solar homes

• Family households

• Customers wanting efficient electric hot water

• Homes with suitable outdoor airflow and drainage

Before choosing iStore, check tank size, timer setup, drainage, airflow, noise placement and installation location.

Enviroheat hot water replacement

Enviroheat Hot Water Systems may suit customers comparing value-focused heat pump hot water.

Enviroheat may suit:

• Electric storage replacement

• Heat pump upgrade comparisons

• Moderate-demand homes

• Rental properties where the site suits

• Customers comparing heat pump options across brands

Before ordering, check capacity, airflow, drainage, warranty terms and access.

Aquatech / Hydrotherm hot water replacement

Aquatech / Hydrotherm Hot Water Systems are worth comparing as alternative heat pump hot water options.

They may suit:

• Customers comparing heat pump brands

• Homes replacing electric storage

• Supply-only customers with their own installer arranged

• Properties with suitable outdoor airflow and condensate drainage

Confirm product dimensions, recovery, warranty, electrical setup and installation requirements before ordering.

Bosch hot water replacement

Bosch Hot Water Systems are often compared for gas hot water and continuous flow systems.

Bosch may suit:

• Gas hot water replacement

• Instant gas comparisons

• Homes with suitable gas supply

• Customers comparing compact gas options

• Properties where model compatibility is confirmed

Before choosing Bosch, confirm gas type, ignition requirements, flow rate, water pressure and installation suitability.

Installation Add-Ons and replacement cost

Installation Add-Ons may be relevant where a hot water replacement needs extra selected work or components.

Add-ons may relate to:

• Valves

• Disposal

• Extra materials

• Electrical work

• Gas work

• Pipework changes

• Drainage requirements

• Access issues

• Other installation-related needs where available

Add-ons should match actual site requirements. Do not guess what is needed without checking the existing setup.

Valve replacement cost factors

Hot water systems often need valves for safety, pressure control and compliance.

Common valves may include:

• Tempering valve

• Temperature pressure relief valve

• Pressure limiting valve

• Expansion control valve where required

• Isolation valves

• Non-return valves where applicable

Old valves may need replacing even if the hot water unit itself is a straightforward swap.

Electrical replacement cost factors

Electrical work can affect replacement cost for electric storage, instant electric, heat pumps and some instant gas systems.

Extra electrical work may include:

• New circuit

• Switchboard upgrades

• Timer setup

• Isolator changes

• Power point installation

• Controlled-load changes

• Solar timing setup

• Electrical compliance work

Electrical work should be completed by a licensed electrician where required.

Gas replacement cost factors

Gas work can affect replacement cost for gas storage and instant gas systems.

Extra gas work may include:

• Gas pipework upgrades

• Gas type confirmation

• Natural gas or LPG setup

• Moving the system

• Changing from storage to instant gas

• Installing a larger flow-rate unit

• Testing and commissioning

• Correcting old non-compliant work

Gas work must be completed by a licensed gas fitter.

Drainage replacement cost factors

Drainage matters for every hot water replacement.

Extra drainage work may be needed if:

• Relief valve discharge is not compliant

• Drainage needs to be extended

• The system is being moved

• A drip tray is required

• Water would run across a path

• A heat pump needs condensate drainage

• The old setup drained poorly

Poor drainage can create nuisance water, slippery surfaces and compliance issues.

Access replacement cost factors

Access can affect replacement cost.

Cost may increase if:

• The system is inside a tight cupboard

• The unit is upstairs

• Side access is narrow

• Stairs are involved

• The old tank is heavy or difficult to remove

• The new system is larger

• Parking or loading access is poor

• Extra labour is needed

Photos of the existing system and access path can help identify issues early.

Base or slab replacement cost factors

Some hot water systems need a stable base or platform.

Cost may increase if:

• The existing base is damaged

• The ground is uneven

• The tank size changes

• A heat pump footprint is larger

• The system is being relocated

• Drainage affects the base area

• The system needs better support

A hot water system should sit on a suitable stable base.

Indoor replacement cost factors

Indoor hot water replacements can involve extra requirements.

Cost may depend on:

• Cupboard access

• Drainage

• Drip tray requirements

• Relief valve discharge

• Leak protection

• Electrical access

• Ventilation where relevant

• Flue requirements for gas where relevant

• Space for servicing

• Compliance with location requirements

An old indoor location may not automatically suit a new system.

Outdoor replacement cost factors

Outdoor systems still need proper planning.

Cost may depend on:

• Base condition

• Weather suitability

• Pipework protection

• Drainage

• Electrical isolation

• Gas clearances where relevant

• Access

• Impact protection

• Service clearance

• Noise placement for heat pumps

Outdoor does not automatically mean simple.

Relocating a hot water system

Relocating a hot water system can add significant cost.

Relocation may require:

• New pipework

• New electrical supply

• New gas pipework

• New drainage

• New base

• Wall mounting changes

• Access planning

• Old unit removal

• Compliance upgrades

Relocation may be worth it during a renovation, but it should be quoted properly.

Hot water replacement during renovations

A renovation is a good time to reassess hot water properly.

Before replacing a system during a renovation, confirm:

• Final bathroom count

• Shower and bath locations

• Energy source

• Tank or unit location

• Gas pipework

• Electrical capacity

• Drainage

• Roof solar plans

• Outdoor airflow if considering heat pump

• Access after renovation

• Future servicing requirements

Do not leave hot water selection until after plumbing and electrical locations are already locked in.

Hot water replacement for rental properties

Rental properties need reliable hot water sized for likely occupancy.

Before replacing a rental property system, check:

• Number of bedrooms

• Number of bathrooms

• Likely tenant count

• Existing system type

• Whether tenants previously ran out

• Maintenance access

• Warranty terms

• Installation location

• Total replacement pathway

• Simplicity for tenants

A rental should be sized for likely use, not just the current tenant.

Hot water replacement for Airbnb and short-stay homes

Short-stay homes can have higher peak hot water demand than normal owner-occupied homes.

Before replacing a system for an Airbnb or holiday rental, check:

• Maximum guest count

• Number of bathrooms

• Back-to-back showers

• Bath use

• Laundry between bookings

• Recovery time

• Simplicity for guests

• Maintenance access

• Noise placement

• Emergency replacement planning

Undersizing can lead to guest complaints.

Hot water replacement for units and townhouses

Units and townhouses can have extra constraints.

Before ordering, check:

• Body corporate or strata rules

• Existing system location

• Indoor cupboard requirements

• Drainage

• Access

• Electrical supply

• Gas availability

• Noise restrictions

• Common property rules

• Removal access

• Compliance requirements

Do not assume a house-style replacement applies to a unit or townhouse.

Hot water rebates and incentives

Some energy-efficient hot water systems may be eligible for rebates, certificates or incentives depending on product, location, installer, scheme rules and installation pathway.

However, rebate rules can change.

Before relying on a rebate, check:

• Current eligibility

• Product eligibility

• Installer requirements

• State or territory rules

• Documentation requirements

• Whether the price includes the incentive

• Whether the incentive is applied upfront or claimed later

• Whether the old system type affects eligibility

Do not choose a hot water system only because of a rebate. It still needs to suit the home.

Supply-only hot water replacement

Supply-only ordering can suit customers who already have their own licensed installer arranged.

Supply only may suit:

• Builders

• Renovators

• Landlords

• Property managers

• Trade customers

• Homeowners managing their own installation

• Customers outside supplied-and-installed service areas

Supply-only product pricing generally does not include installation, valves, old unit removal, disposal, electrical work, gas work, pipework changes, drainage, access upgrades or compliance upgrades unless clearly selected or included.

Before ordering supply only, your licensed installer should confirm the hot water system suits the property.

Supplied-and-installed hot water replacement

Supplied-and-installed options may be available on selected products in eligible Brisbane and Gold Coast service areas where shown.

This can suit customers who want the product and installation pathway arranged together.

Before ordering supplied and installed, check:

• Service area eligibility

• Existing system type

• Product suitability

• Installation inclusions

• Valve requirements

• Gas work

• Electrical work

• Pipework changes

• Drainage

• Old unit removal

• Disposal

• Access

• Base or slab condition

• Compliance upgrades

Do not assume every possible site requirement is included. Check the selected product and installation options carefully.

How to reduce hot water replacement surprises

Before ordering, collect:

• Photos of the existing hot water system

• Existing model number

• Existing tank size or flow rate

• Energy source

• Natural gas or LPG if gas

• Installation location photos

• Pipework photos

• Valve photos

• Electrical supply photos where relevant

• Gas connection photos where relevant

• Drainage photos

• Access photos

• Number of people in the home

• Number of bathrooms

• Whether the old system ran out

• Whether you want supply only or installed where available

Good information helps avoid ordering the wrong product or missing important installation requirements.

Common mistake: comparing only the product price

The product price is not the full replacement cost.

Valves, pipework, electrical work, gas work, drainage, removal, disposal and compliance upgrades can all affect the final cost.

Common mistake: replacing the same size after running out

If the old system regularly ran out of hot water, replacing it with the same size may repeat the problem.

Reassess household demand first.

Common mistake: changing system type without checking the site

Changing from electric to gas, gas to heat pump, storage to instant, or electric storage to instant electric can involve major site requirements.

Check the full pathway before ordering.

Common mistake: ignoring natural gas vs LPG

Natural gas and LPG are different.

Gas hot water systems must match the property’s gas type and be installed by a licensed gas fitter.

Common mistake: ignoring electrical capacity

Electric storage, heat pump and instant electric systems all need suitable electrical supply.

Instant electric and heat pump upgrades should be checked carefully.

Common mistake: ignoring gas pipe sizing

Instant gas and some gas upgrades require suitable gas pipe sizing.

A larger gas unit may not perform properly if the property cannot supply enough gas.

Common mistake: ignoring water pressure

Water pressure affects hot water performance, especially with instant gas and instant electric systems.

Pressure issues should be diagnosed before choosing a replacement.

Common mistake: ignoring drainage

Hot water systems need safe discharge and drainage.

Heat pumps also need condensate drainage.

Poor drainage can create nuisance water, slippery surfaces and compliance issues.

Common mistake: assuming installation is included

Installation is not included with supply-only products unless selected separately or clearly shown as part of the chosen option.

Check the product and checkout options carefully.

Common mistake: DIY hot water replacement

Hot water replacement can involve plumbing, electrical work, gas fitting, pressure control, drainage, scalding safety and compliance.

DIY replacement can create:

• Water leaks

• Electrical risks

• Gas leaks

• Carbon monoxide risk

• Fire risk

• Scalding risks

• Poor performance

• Warranty issues

• Insurance problems

• Non-compliant work

• Property damage

Use the right licensed professionals.

Final verdict: how much should you budget for hot water system replacement?

Hot water system replacement cost depends on the system type, energy source, size, brand, location, access, valves, pipework, electrical work, gas work, drainage, old unit removal, disposal and compliance requirements.

A like-for-like replacement is usually simpler where the old setup is suitable and the system still matches household demand.

Changing system type, moving the unit, increasing size, upgrading to heat pump hot water, installing instant gas or choosing instant electric can add extra requirements.

Start by comparing Hot Water Systems, Electric Hot Water Systems, Instant Electric Systems, Gas Hot Water Systems, Instant Gas Hot Water Systems, Heat Pump Hot Water Systems and Installation Add-Ons.

The best replacement is not always the cheapest product or the biggest unit. It is the hot water system that matches your household demand, energy source, installation location, budget, access and long-term running cost goals.

Long-tail FAQs

How much does hot water system replacement cost?

Hot water system replacement cost depends on system type, size, energy source, location, access, valves, pipework, electrical work, gas work, drainage, removal, disposal and compliance requirements.

What is the cheapest hot water system to replace?

The cheapest replacement is usually a straightforward like-for-like swap where the existing location, pipework, valves, drainage and energy source are suitable.

Is electric hot water cheaper to replace than gas?

It depends on the existing setup. Electric storage can be straightforward where electrical supply already suits. Gas can be practical where suitable natural gas or LPG supply is already available.

Is heat pump hot water more expensive to replace?

Heat pump hot water can have a higher upfront product cost and more site-specific requirements than standard electric storage, including airflow, condensate drainage and noise placement.

Can I replace electric hot water with gas?

Yes, where the property has suitable natural gas or LPG supply. Gas pipework, licensed gas fitting, power requirements and compliance must be checked.

Can I replace electric storage with a heat pump?

Yes, where the home has suitable outdoor airflow, condensate drainage, electrical setup, access and noise placement.

Can I replace gas storage with instant gas?

Yes, where gas pipe sizing, water pressure, power supply, mounting location and clearances suit the new instant gas unit.

What adds cost to hot water replacement?

Common cost adders include valves, pipework changes, electrical work, gas work, drainage, removal, disposal, difficult access, relocation, base work and compliance upgrades.

Are hot water rebates available?

Some energy-efficient hot water systems may be eligible for rebates, certificates or incentives depending on product, location, installer and scheme rules. Check current eligibility before relying on any rebate.

Can I replace a hot water system myself?

No. Hot water replacement should be completed by licensed professionals. Plumbing, electrical work, gas fitting, pressure control and compliance requirements can create safety and warranty issues if handled incorrectly.