Heat Pump Hot Water System Price: What Affects the Cost Before You Buy

Oct 9, 2024

Heat pump hot water system prices can vary depending on the brand, tank size, efficiency, smart features, rebate eligibility, installation location and whether you are ordering supply only or choosing an eligible supplied-and-installed option. A basic electric storage system will usually have a different upfront cost to a heat pump, but a heat pump may reduce electricity use where the home suits the technology.

The right heat pump should not be chosen by price alone. It needs to suit your household size, number of bathrooms, shower habits, outdoor space, airflow, condensate drainage, electrical supply, access and noise placement.

Installed Today makes it easy to compare and order heat pump hot water systems, including medium heat pump hot water systems 200L–280L, large heat pump hot water systems and Wi-Fi enabled heat pump hot water systems. Supply-only ordering is available across major Australian metro areas, with selected supplied-and-installed options available on eligible products in Brisbane and Gold Coast service areas.

Quick Answer: How Much Does a Heat Pump Hot Water System Cost?

The cost of a heat pump hot water system depends on the selected product, tank size, installation pathway and site requirements.

As a general guide:

Supply-only pricing usually covers the product only
Heat pumps generally cost more upfront than standard electric storage systems
Installation costs can vary depending on access, valves, drainage, electrical work and relocation requirements
Rebates, STCs and incentives may reduce the upfront cost where eligible
Supply-only purchases may not qualify for every rebate pathway
Larger tanks and premium models usually cost more than smaller or basic models
Wi-Fi enabled or higher-feature models may cost more
The cheapest heat pump is not always the best value if it is undersized or poorly suited to the home

Before ordering, check the current product page price and confirm full installation requirements with your licensed installer.

What Affects Heat Pump Hot Water System Prices?

Heat pump pricing is affected by more than the tank size.

Key price factors include:

Brand
Tank capacity
Heat pump type
Energy efficiency
Recovery rate
Noise level
Smart controls or Wi-Fi features
Product availability
Delivery location
Installation access
Existing system type
Electrical requirements
Condensate drainage
Valve requirements
Base or slab condition
Old unit removal and disposal
Compliance upgrades
Rebates, STCs or incentives
Supply-only vs supplied-and-installed pathway

A product-only price should not be treated as a full installed cost unless installation is clearly selected or shown.

Supply-Only Heat Pump Hot Water Prices

Supply-only pricing generally means the listed price covers the heat pump hot water product only. This can suit customers who already have a licensed installer organised and want to order the system online.

Supply-only may suit you if:

Your installer has confirmed the correct model
The tank size suits your household
Outdoor airflow is suitable
Condensate drainage has been checked
Electrical requirements are understood
Access for delivery and installation is suitable
Noise placement has been considered
You understand what is not included in the product price

Supply-only pricing usually does not include:

Installation labour
Plumbing alterations
Electrical work
New valves
Pipework changes
Drainage changes
Condensate drainage
Tempering valve upgrades
Pressure limiting valve upgrades
Expansion control valves
Old unit removal
Disposal
Compliance upgrades
Concrete bases or slab work
Relocation of the system
Rebate administration
Site assessment

Always confirm full site requirements before ordering supply only.

Supplied-and-Installed Heat Pump Hot Water Prices

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.

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.

Before choosing a supplied-and-installed heat pump option, confirm:

Whether your address is eligible
Whether the selected product is eligible
Whether the installation is like-for-like
Whether valves are included or extra
Whether electrical work is included or extra
Whether condensate drainage is included or extra
Whether old unit removal is included
Whether disposal is included
Whether pipework changes are included
Whether compliance upgrades may be extra
Whether rebates or STCs are included, excluded or handled separately

Do not assume every heat pump product or every address has an installed option.

Why Heat Pumps Usually Cost More Upfront Than Standard Electric Hot Water

A standard electric storage hot water system uses an electric element to heat water inside a tank. A heat pump hot water system uses a refrigeration cycle to draw heat from the surrounding air and transfer it into stored water.

That extra technology usually means a higher upfront product cost.

A heat pump includes components such as:

Storage tank
Heat pump compressor
Fan
Heat exchanger
Refrigerant circuit
Sensors and controls
Condensate drainage requirements
Electrical control components

Because of this, a heat pump is usually more complex than a basic electric storage tank. The benefit is that, where the installation location suits, it can reduce electricity use compared with standard electric storage.

Heat Pump Product Price vs Total Installed Cost

When comparing heat pump hot water system prices, separate the product cost from the total installed cost.

Product Price

The product price usually refers to the system itself.

It may include:

The tank
Heat pump components
Factory-supplied parts
Standard manufacturer packaging
Delivery where shown or included

Total Installed Cost

The total installed cost may include:

Product
Labour
Plumbing work
Electrical work
Valves
Condensate drainage
Pipework changes
Removal of old system
Disposal
Compliance upgrades
Relocation work
Access-related costs
Rebate or STC handling where applicable

A low product price can still lead to a higher total cost if the site needs extra work.

Heat Pump Installation Costs That Can Change the Final Price

Heat pump installation cost depends heavily on the property.

Possible cost factors include:

Existing system type
Existing system location
Whether the new heat pump is going in the same location
Whether the old unit is electric, gas, solar or heat pump
Outdoor access
Side access
Slab or base condition
Pipework changes
Electrical supply
New circuit or isolator requirements
Switchboard suitability
Valve upgrades
Condensate drainage
Drainage and overflow points
Tempering valve requirements
Pressure limiting valve requirements
Expansion control valve requirements
Old system removal
Disposal
Tight access
Stairs or difficult delivery path
Non-compliant existing setup
Rebate or STC process requirements

This is why installer confirmation is important before ordering supply only.

Heat Pump Hot Water Rebates, STCs and Incentives

Heat pump hot water systems may be eligible for rebates, STCs or other incentives depending on the product, location, supplier pathway and current program rules.

These incentives can change.

Before relying on a rebate or discount, confirm:

Whether the selected product qualifies
Whether your property qualifies
Whether your state or territory has a relevant program
Whether supply-only purchases are eligible
Whether an approved supplier or installer is required
Whether pre-approval is needed
Whether the incentive is applied upfront or claimed later
Whether a customer contribution applies
Whether the product must be replacing a specific old system type
Whether the rebate or STC value is already included in the price

A rebate can improve value, but it should not be the only reason you choose a heat pump. The system still needs to suit the home.

Do Supply-Only Heat Pumps Qualify for Rebates?

Not always.

Some rebate pathways may require an approved provider, installer or retailer to manage the process before installation. Some programs may not apply to a simple supply-only product purchase.

Before ordering supply only, ask:

Does this rebate apply to supply-only orders?
Does the installer need to be approved?
Does the supplier need to be approved?
Is pre-approval required before purchase?
Is the product on the approved list?
Does the old system type matter?
Will ordering first affect eligibility?
Are STCs included in the displayed price?
Is the rebate applied upfront or claimed later?

If rebate eligibility is important to your budget, confirm it before buying.

Heat Pump Hot Water Running Costs

Heat pump hot water systems can use less electricity than standard electric storage systems where the location and usage suit the technology.

Running costs depend on:

Household hot water use
Tank size
Climate
Installation location
Airflow
Electrical tariff
Solar timing
Recovery settings
Water temperature settings
Shower habits
Number of people in the home
Maintenance
Pipework distance
Brand and model efficiency

A heat pump that looks efficient on paper still needs the right installation location. Poor airflow, bad placement or undersizing can reduce the benefit.

Heat Pump Hot Water vs Electric Storage Cost

Electric hot water systems are often cheaper upfront than heat pumps. Heat pumps usually cost more upfront but may reduce electricity use over time.

System Type	Upfront Cost	Running Cost Potential	Best Suited To
Electric storage	Often lower upfront	Depends on tariff, usage and size	Simple replacements and homes without gas
Heat pump hot water	Usually higher upfront	Can reduce electricity use in suitable homes	Energy-focused homes with suitable outdoor space
Solar hot water	Often higher upfront	Can reduce grid energy use where roof conditions suit	Homes with strong roof suitability and booster planning

If you want a simple like-for-like replacement, electric storage may still suit. If you want to reduce electricity use and have the right outdoor location, a heat pump may be worth comparing.

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

Heat Pump Hot Water vs Gas Hot Water Cost

Gas hot water systems can suit homes already set up for natural gas or LPG. Heat pump hot water can suit homes wanting an electric upgrade or looking to use more daytime solar electricity where timing suits.

Gas options include:

Gas work must be completed by a licensed gas fitter. Natural gas and LPG systems are not interchangeable.

Heat pump hot water may be more relevant if the household wants to move away from gas or already has rooftop solar electricity. Gas may still suit homes with suitable gas infrastructure and hot water demand.

Heat Pump Hot Water vs Solar Hot Water Cost

Solar hot water systems use roof-mounted collectors and a storage tank with an electric or gas booster. Heat pump hot water systems use air heat and do not need roof-mounted collectors.

Solar hot water may suit homes with:

Suitable roof space
Good sun exposure
Minimal shading
Suitable roof orientation
A suitable booster setup
Long-term energy efficiency goals

Heat pump hot water may be easier to compare where:

Roof space is limited
Shading affects solar suitability
Roof access is difficult
You already have rooftop solar electricity
You want a ground-level hot water unit
You want to avoid roof-mounted collectors

Both can be efficient where the home suits the technology. The best value depends on the property.

What Size Heat Pump Hot Water System Do You Need?

Tank size affects product price and suitability.

A system that is too small may run out of hot water. 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
Laundry use
Kitchen use
Morning and evening peak demand
Whether multiple showers run at once
Existing system size
Whether the old system ran out of hot water
Recovery rate
Outdoor space
Access
Electrical requirements

Many homes compare heat pump systems around 250L to 280L. Larger households may need 280L-plus options.

Medium Heat Pump Hot Water System Prices

Medium heat pump hot water systems 200L–280L are commonly compared by small-to-medium households and many standard family homes.

They may suit:

Two-to-four person homes, depending on usage
Homes replacing electric storage
Moderate shower demand
Households with suitable outdoor space
Homes wanting a balance of capacity and footprint
Customers comparing common 250L to 280L options

Popular options include:

Actual suitability depends on usage, recovery rate and installation location.

Large Heat Pump Hot Water System Prices

Large heat pump hot water systems may suit homes with higher hot water demand.

They may be worth comparing for:

Larger households
Multiple bathrooms
Higher shower demand
Longer shower habits
Homes where the old system regularly ran out
Properties with enough outdoor space and access

A larger heat pump usually costs more than a smaller model, but that does not mean every household should choose the largest unit. Oversizing can increase product cost and may not improve comfort if the household does not need the extra capacity.

Wi-Fi Enabled Heat Pump Hot Water Prices

Wi-Fi enabled heat pump hot water systems may cost more than basic models, depending on the brand and features.

Smart or Wi-Fi features may help with:

Timer control
Solar-friendly operating windows
Usage scheduling
Adjusting settings
Monitoring operation, depending on model
Managing hot water around household routines

Check the specific product page for feature details. Not every model has the same smart controls.

Heat Pump Brands and Price Differences

Heat pump prices can vary by brand, model, tank size, technology, features and availability.

Installed Today stocks a range of hot water and heat pump brands, including:

Brand matters, but the best value is the system that suits the home, has the right capacity and can be installed properly.

iStore Heat Pump Hot Water Prices

iStore heat pump hot water systems are commonly compared by customers looking for heat pump hot water with a strong balance of capacity, features and value.

A popular option is the iStore 270L Heat Pump Hot Water System.

An iStore heat pump may suit homes that:

Want a common medium-capacity heat pump
Are replacing an older electric storage system
Have suitable outdoor space
Have clear airflow
Can manage condensate drainage
Want to pair hot water timing with rooftop solar where setup suits

Confirm installation location, access and electrical requirements before ordering.

Rheem Heat Pump Hot Water Prices

Rheem hot water systems include electric, gas and heat pump options.

A popular Rheem heat pump option is the Rheem AmbiHeat 270L Heat Pump Hot Water System.

Rheem heat pump pricing can vary by model, product features, installation pathway and eligibility for any current incentives.

A Rheem heat pump may suit homes wanting a recognised hot water brand and a heat pump-style upgrade from older electric storage where the site suits.

Rinnai Heat Pump Hot Water Prices

Rinnai hot water systems include electric, instant gas and heat pump options.

Rinnai heat pump options include:

Rinnai heat pump pricing depends on the selected size, model and installation pathway. Larger models may suit larger households where outdoor space, airflow and access support the system.

Enviroheat Heat Pump Hot Water Prices

Enviroheat and Envirosun hot water systems may be compared by customers looking for heat pump hot water alternatives.

A popular option is the Enviroheat 250L Heat Pump Hot Water System.

Before ordering, confirm the system suits the household size, outdoor location, electrical supply, drainage and access requirements.

Aquatech and Hydrotherm Heat Pump Hot Water Prices

Aquatech and Hydrotherm heat pump hot water systems may be worth comparing for customers reviewing heat pump options across different price points, sizes and features.

Compare:

Tank capacity
Outdoor location requirements
Noise placement
Condensate drainage
Electrical requirements
Warranty details
Product availability
Rebate or STC eligibility where relevant

Do not choose by brand or price alone. Site suitability still matters.

Heat Pump Hot Water and Rooftop Solar Value

Heat pump hot water can pair well with rooftop solar where the timer settings, electrical setup and household usage pattern suit.

This can help use more daytime solar generation by running the heat pump during the day.

However, it should not be described as “free hot water”. Product cost, installation cost, maintenance and electricity use still matter.

A solar-friendly heat pump setup depends on:

Solar system size
Household daytime electricity use
Timer settings
Heat pump recovery rate
Tank size
Shower habits
Electrical setup
Weather and season

Confirm timer and electrical setup with your installer or electrician.

Heat Pump Installation Location and Cost

The installation location can affect both performance and cost.

Before ordering, confirm:

Outdoor airflow
Manufacturer clearances
Condensate drainage
Base or slab condition
Access for delivery
Access for future servicing
Noise placement
Distance from bedrooms
Distance from neighbouring windows
Pipework route
Drainage and overflow points
Electrical supply
Whether relocation is needed

A heat pump should not be boxed into a tight or enclosed space. Poor airflow can reduce performance.

Condensate Drainage Costs

Heat pumps can produce condensate during operation. This needs to drain correctly.

Condensate drainage may affect the final cost if:

No suitable drain is nearby
Extra pipework is needed
The unit is being relocated
The area has poor fall or pooling issues
The old system did not require condensate drainage

Before ordering, ask where condensate will go and whether extra drainage work is required.

Electrical Costs for Heat Pump Hot Water

Heat pump systems are electric, so electrical suitability must be checked.

Electrical cost factors may include:

Existing circuit suitability
Isolator requirements
Switchboard capacity
Cable route
Timer setup
Solar-friendly control setup
New circuit requirements
Electrical compliance upgrades

A licensed electrician may be required where electrical work is needed.

Replacing Electric Storage With Heat Pump: Cost Considerations

Replacing an older electric storage system with a heat pump can be a common upgrade pathway.

Costs can depend on:

Whether the new system fits in the same location
Whether the old unit was indoor or outdoor
Outdoor airflow
Condensate drainage
Electrical requirements
Valve condition
Existing slab or base
Access
Old unit removal
Disposal
Rebate or STC eligibility

Do not assume a heat pump can always replace an electric storage system in the same position. Many heat pumps need a better outdoor airflow location.

Replacing Gas With Heat Pump: Cost Considerations

Replacing a gas hot water system with a heat pump may involve more planning.

Possible cost factors include:

Disconnecting the gas system
Electrical supply for the new heat pump
New location requirements
Pipework changes
Condensate drainage
Old gas unit removal
Disposal
Whether gas capping is needed
Compliance requirements
Whether rebate eligibility depends on the old system type

A licensed gas fitter, plumber or electrician may be required depending on the work involved.

Replacing Solar Hot Water With Heat Pump: Cost Considerations

Some homeowners compare heat pump hot water when replacing an older solar hot water system.

Costs can depend on:

Existing tank location
Roof collector removal
Booster type
Electrical setup
Plumbing changes
Roof access
Disposal
New heat pump location
Condensate drainage
Compliance requirements

A heat pump may be simpler than replacing roof-mounted solar collectors in some homes, but it still needs a suitable outdoor location.

Maintenance Costs for Heat Pump Hot Water

Heat pumps need maintenance like any other hot water system. Requirements vary by brand, water quality, model and installation conditions.

General maintenance considerations include:

Keeping airflow clear
Keeping leaves and debris away from the unit
Checking condensate drainage
Watching for leaks
Listening for unusual noise
Following manufacturer servicing guidance
Checking valves where required
Checking the anode where applicable
Keeping access clear for future service

Neglecting maintenance can affect performance and lifespan.

Warranty and Price

Warranty terms can vary by brand, model, tank, parts, labour coverage and installation conditions. Always check the current product page and manufacturer documentation before ordering.

Warranty may depend on:

Correct installation
Licensed trades
Product registration where required
Water quality
Maintenance
Correct use
Proof of purchase
Whether the system was installed according to manufacturer instructions

Do not rely on old third-party warranty information when comparing prices.

Common Mistakes When Comparing Heat Pump Hot Water Prices

Comparing Product-Only and Installed Pricing

Supply-only pricing is not the same as a full installed price.

Choosing the Cheapest Heat Pump Only

A cheaper system may not be best if it is undersized, noisy, unsupported or unsuitable for the location.

Forgetting About Condensate Drainage

Drainage can affect installation cost and suitability.

Ignoring Airflow

Heat pumps need clear airflow to perform properly.

Not Checking Noise Placement

Poor placement near bedrooms or neighbouring windows can create avoidable issues.

Assuming Rebates Are Guaranteed

Rebates, STCs and incentives can change and may depend on supplier and installer pathways.

Ordering Before Installer Confirmation

Supply-only customers should confirm site suitability before buying.

Replacing Same Size Without Checking Demand

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

Before Ordering Checklist

Before ordering a heat pump hot water system, 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
Desired tank capacity
Outdoor location
Airflow clearance
Condensate drainage
Noise placement
Electrical requirements
Access for delivery and installation
Base or slab condition
Drainage and overflow points
Whether new valves may be needed
Whether rebates or STCs may apply
Whether supply-only affects rebate eligibility
Whether supply-only or supplied-and-installed is the right option
Installer confirmation before buying supply only

Frequently Asked Questions

What is the average heat pump hot water system price?

Heat pump hot water system prices vary by brand, tank size, features, rebate eligibility and whether you are ordering supply only or choosing an eligible installed option. Check the current product page for live pricing and confirm installation costs separately.

Why are heat pump hot water systems more expensive upfront?

Heat pumps include extra components such as a compressor, fan, refrigerant circuit, sensors and controls. They are more complex than standard electric storage systems but may reduce electricity use where the home suits the technology.

Does supply-only heat pump pricing include installation?

No. Supply-only generally means product only unless installation is selected or clearly shown. Installation, valves, electrical work, plumbing alterations, condensate drainage, removal, disposal and compliance upgrades are usually separate.

What adds cost to heat pump installation?

Common cost factors include electrical work, condensate drainage, valve upgrades, old unit removal, disposal, pipework changes, access issues, relocation, slab or base requirements and non-compliant existing setups.

Is a heat pump cheaper to run than electric hot water?

A heat pump can use less electricity than standard electric storage where installed in a suitable location. Running costs depend on usage, tariff, airflow, settings, household size and maintenance.

Are heat pump hot water rebates available?

Rebates, STCs and incentives may be available depending on product, location and current program rules. Eligibility can change, so check before ordering.

Do supply-only heat pumps qualify for rebates?

Not always. Some rebate pathways require an approved supplier or installer. Confirm eligibility before buying supply only if the rebate is important to your budget.

Is a larger heat pump worth the extra cost?

A larger system may suit higher-demand households, but bigger is not always better. Choose the size based on people in the home, bathrooms, shower habits and recovery needs.

Can heat pump hot water work with solar panels?

Yes, it can pair well with rooftop solar where timer settings, electrical setup and usage patterns suit. This can help use more daytime solar electricity, but it does not make hot water automatically free.

Can I install a heat pump hot water system myself?

No. Heat pump hot water systems involve plumbing, electrical work, valves, drainage and compliance requirements. Use licensed trades where required.

Final Word

Heat pump hot water system prices depend on more than the product label. Brand, tank size, features, installation location, airflow, condensate drainage, electrical work, rebates, STCs and supply-only vs installed pathways can all affect the final cost.

A heat pump can be a strong option for households wanting a more efficient electric-style hot water system, especially where the home has suitable outdoor space and may benefit from solar-friendly timing. But the system still needs to be sized and installed correctly.

Before ordering supply only through Installed Today, confirm the selected heat pump with your licensed installer. If choosing a supplied-and-installed option in an eligible Brisbane or Gold Coast service area, check exactly what is included before placing the order.

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