Heat Pump Hot Water Systems from $2,229
Our Top 3 Heat Pumps
Choose How You Want to Order
Not every hot water job is the same. Choose supply only if you already have an installer arranged, or select a supplied and installed option where available.
Supply Only
Best if you already have a licensed plumber, gas fitter or electrician arranged.
Your product price is for the hot water system only. Installation is not included unless shown or selected separately.
Valves, old unit removal, disposal, electrical work, pipework changes, gas work and compliance upgrades may be required depending on your installation.
Supplied & Installed
Best if you want the hot water system and installation organised together.
Select your preferred system, complete the installation questions on the product page and choose any required installation options before checkout.
Installation availability and final requirements depend on your location, access, product type, existing services and site conditions.
Not Sure What You Need?
Hot water systems vary by size, energy source, household demand and installation setup.
Compare the available hot water systems below or use the selection tools throughout the site to help narrow down the right option.
Consider household size, hot water demand, energy source, available space, running costs and installation requirements before choosing.
SHOP HEAT PUMPS BY SIZE OR FEATURE
Heat Pump Hot Water Systems: Prices, Replacement Costs & Buying Guide
Heat pump hot water systems use electricity to move heat from the surrounding air into water stored inside a tank. Instead of creating all of their heat directly with a conventional electric element, they use a refrigeration cycle to transfer available heat, making heat pumps one of the most energy-efficient electric hot water options for Australian homes.
Installed Today offers heat pump hot water systems for supply across supported mainland Australian metro areas, with supplied and installed options available on selected systems in eligible Brisbane and Gold Coast locations. Compare tank size, household demand, noise level, electrical requirements, airflow, controls, warranty and installation location before choosing a system.
At this September 2026 review, the lowest available product shown in the live collection is from $2,229. The product grid above is the current source for live product pricing, stock and variants; this guide explains how product price relates to supply only, replacement, installation, rebates and total ownership cost.
How Much Do Heat Pump Hot Water Systems Cost?
Heat pump pricing starts with the system itself, then changes according to whether you choose supply only, replace an existing heat pump, convert from electric or gas, or need additional electrical, plumbing, drainage, base or site work. At this September 2026 review, the lowest available product shown in the live collection is from $2,229.
Product cards above override this guide if pricing changes. Delivery is not automatically included unless the selected product or checkout says so.
What Does the Heat Pump Hot Water Price Include?
The advertised product or “from” price is the starting system price. It is not automatically the complete installed price and should not be read as including every valve, removal, disposal, electrical change, power point, base, drainage, condensate, pipework alteration, delivery or site-specific requirement unless those items are explicitly shown.
Supply Only
Choose supply only when appropriately licensed trades are already arranged. The displayed product price covers the selected heat pump and product options unless the listing says otherwise.
Like-for-Like Heat Pump Replacement
Replacing an existing heat pump with a compatible model can be the simplest pathway where the base, plumbing, electrical supply, drainage, airflow and location remain suitable.
Conversion or Extra Site Work
Electric-to-heat-pump, gas-to-heat-pump, relocation, new circuits, power point changes, bases, valves, drainage and compliance work can increase the completed cost.
How Much Does It Cost to Replace a Hot Water System with a Heat Pump?
There is no single installed price that fits every property. Start with the live product price above, then compare the installation pathway that matches what is currently installed. Replacing an old heat pump is usually a different job from converting electric storage or disconnecting gas.
Old Heat Pump → New Heat Pump
Often the lowest-complexity heat-pump pathway where the existing location, plumbing, drainage, base, airflow and electrical arrangement remain compatible.
Electric Storage → Heat Pump
A common upgrade pathway. The new heat pump may need different dimensions, airflow, condensate drainage, electrical connection, base or plumbing positions from the old electric tank.
Gas → Heat Pump
This conversion can add gas disconnection or capping, electrical work, plumbing changes and a suitable heat-pump location with the required airflow and clearances.
Do not judge the cheapest replacement by the product price alone. A unit that closely suits the existing site can sometimes produce a lower completed cost than a cheaper heat pump requiring more electrical, plumbing or relocation work.
What Matters When Comparing Heat Pump Hot Water?
What Is a Heat Pump Hot Water System?
A heat pump hot water system works in a similar way to a refrigeration or air-conditioning cycle. A fan draws surrounding air through the system, the refrigeration circuit extracts usable heat from that air, and the heat is transferred into the water stored in the tank.
Because the system is transferring heat rather than relying entirely on electric resistance heating, a heat pump can use substantially less electricity than a conventional electric storage system under suitable operating conditions.
Heat pump systems can be integrated, with the heat pump components and tank forming one unit, or split systems where the storage tank and heat pump components are separate. Product design varies by manufacturer.
How to Choose a Heat Pump Hot Water System
The best heat pump is not automatically the largest or most expensive. The system needs to suit the household, climate, available installation position and electrical setup.
Tank Capacity
Match usable stored hot water and recovery performance to normal household demand, not litres alone.
Household Demand
Consider occupants, bathrooms, shower habits, baths and how often several hot water outlets are used close together.
Noise Level
Heat pumps use a fan and compressor. Compare the published noise rating and consider bedrooms, neighbours, boundaries and operating times when choosing the installation position.
Electrical Supply
Some models are 10A compatible or plug-in while others require a different electrical connection. Always check the individual product and installation requirements.
Airflow & Location
Heat pumps need suitable airflow around the unit. Clearances, ventilation, drainage and manufacturer installation requirements need to be considered.
Controls & Wi-Fi
Depending on the model, controls may include timers, operating modes, boost functions, scheduling and Wi-Fi or app connectivity.
Heat Pump Hot Water Installation Price Drivers
The product price is only one part of the completed job. These are the main factors that can change heat pump installation cost.
| Price Driver | Why It Matters | Common Scenario |
|---|---|---|
| Tank capacity & model | Size, dimensions, weight, controls and recovery differ between products | Moving from a compact unit to 270L, 300L or 320L+ |
| 10A plug-in vs hardwired | The selected system may need a suitable power point, dedicated circuit, isolator or hardwired connection | Changing from electric storage to a 10A-compatible heat pump |
| Existing electrical supply | The old hot-water circuit may or may not suit the selected heat pump | Power-point installation, circuit alteration or additional protection |
| Base & support | The system needs a suitable level support and adequate access | Old base is damaged, undersized or poorly located |
| Drainage & condensate | Heat pumps can require hot-water discharge drainage plus condensate management | New drain route or longer condensate connection |
| Airflow & clearances | The unit must meet manufacturer space and airflow requirements | Existing tank sits in a tight enclosure or near a sensitive boundary |
| Relocation | Moving the unit can add hot/cold pipework, drainage and electrical cabling | Moving away from a bedroom window or unsuitable enclosure |
| Existing system type | Electric, gas and old heat-pump replacements have different removal and conversion requirements | Gas disconnection/capping or altered electrical setup |
Compare Heat Pump Hot Water System Sizes
Heat pump sizing should consider more than tank capacity. Recovery performance, climate, operating schedule and actual household hot water use all influence how well a system performs.
| Size Range | Common Application | Why It May Suit | Important Checks |
|---|---|---|---|
| Up to 200L | Smaller households and lower-demand properties | More compact footprint where a large storage volume is not required | Recovery rate, household demand and available installation space |
| 200–280L | Many standard households and family homes | Useful balance between tank volume, footprint and everyday hot water capacity | Occupants, bathrooms, recovery performance and usage pattern |
| 280L+ | Larger families and higher-demand households | Greater stored capacity for homes with stronger daily hot water demand | Physical dimensions, access, recovery performance and whether the extra capacity is genuinely required |
Heat pump sizing varies by model. Use the selector and individual product specifications alongside actual household hot water demand.
Heat Pump Efficiency and Coefficient of Performance
Heat pump efficiency is often described using Coefficient of Performance, or COP. COP compares the amount of heat energy delivered with the electrical energy used by the heat pump under stated test conditions.
A higher COP can indicate greater efficiency under those conditions, but COP should not be compared in isolation. Ambient temperature, inlet water temperature, operating mode, test method and household use can all affect real-world performance.
When comparing models, look at the complete system rather than relying on one efficiency number.
10A Compatible and Hardwired Heat Pump Hot Water Systems
Some heat pump hot water systems are designed for a 10 amp electrical connection, and selected models may be suitable for connection through an appropriate power point. Other heat pumps may require hardwiring, a dedicated circuit, isolator or additional electrical work.
A 10A-compatible model can simplify some replacement installations, but it does not mean every property is automatically suitable for a plug-in installation.
Check the manufacturer's requirements, existing electrical setup, circuit protection and the installation method required for the selected system.
How Noisy Are Heat Pump Hot Water Systems?
Heat pumps contain a fan and compressor, so they produce operating noise while heating. Published noise levels differ between models and should be considered alongside the proposed installation position.
The current Installed Today range includes products across different published noise bands, allowing customers to compare quieter systems where noise location is important.
Avoid choosing a location based on plumbing convenience alone. Consider bedrooms, windows, entertaining areas, neighbouring properties, boundaries, airflow, service access and the manufacturer's required clearances.
Heat Pump Location, Airflow and Climate Suitability
A heat pump needs access to suitable surrounding air so it can extract heat efficiently. Restricted airflow or an unsuitable enclosure can affect performance and may conflict with manufacturer installation requirements.
Climate also matters. Heat pump performance can vary as ambient temperature changes, and individual models have their own operating temperature ranges.
Customers in cooler parts of Victoria, South Australia, New South Wales and other mainland regions should check the stated operating range and cold-weather performance of the individual model rather than assuming every heat pump performs identically.
Heat Pump Hot Water with Rooftop Solar
Heat pump hot water can pair well with rooftop solar because selected systems can be scheduled to heat water during daylight hours when the home may be generating solar electricity.
Depending on the model, timers, operating modes or smart controls may allow the heating schedule to be adjusted around solar generation, household demand or preferred operating periods.
Wi-Fi is useful for customers who want additional visibility or remote control, but smart features should come after correct system sizing, installation location and electrical suitability.
Heat Pump Hot Water STCs and Rebates
Eligible heat pump hot water systems may qualify for Small-scale Technology Certificates (STCs) under the Australian Small-scale Renewable Energy Scheme.
Eligibility is not based on the words “heat pump” alone. It depends on the specific model, installation, location, installer and current scheme requirements. Some state-based incentives may also be available from time to time.
Any rebate, certificate or incentive should be confirmed against the selected product and installation before purchase rather than assumed from the advertised tank size or brand.
Supply-only purchase does not automatically create rebate eligibility. Some incentives require an eligible installation, approved or accredited providers, certificate creation or assignment, decommissioning of an eligible old system and other current scheme conditions. Detailed state-by-state rebate rules should be checked separately because programs can change.
What Does a Heat Pump Hot Water System Cost to Own?
A lower purchase price does not automatically mean the lowest total cost. Compare product price with installation complexity, expected electricity use, available tariffs or solar, maintenance, warranty, noise/location suitability and whether the existing services can be reused.
Product
System price, tank capacity, brand, controls, noise, warranty and included components.
Installation
Plumbing, electrical, valves, base, drainage, airflow, access, removal and compliance work.
Energy
Efficiency, household demand, climate, operating schedule, tariff and rooftop solar usage.
Ownership
Servicing, warranty support, parts availability, controls and future replacement compatibility.
Heat Pump Hot Water Systems Brisbane
Brisbane is a primary heat pump installation market for Installed Today. Selected heat pump hot water systems can be ordered with professional installation in eligible Brisbane, Logan, Ipswich, Moreton Bay and Redlands service areas, subject to the product, postcode and installation requirements.
Common Brisbane heat pump jobs include upgrades from standard electric storage, replacement of existing heat pumps, new energy-efficient hot water systems and customers wanting to make better use of rooftop solar generation.
Installation suitability depends on tank size, airflow, noise location, electrical supply, drainage, base, access, existing plumbing and current compliance requirements.
Heat Pump Hot Water Systems Gold Coast
Installed Today also offers selected heat pump hot water systems supplied and installed across eligible Gold Coast service areas.
Heat pumps can be a strong option for Gold Coast households replacing standard electric storage, upgrading an older hot water system or looking for an efficient electric system that can be paired with rooftop solar.
The proposed position should be checked for airflow, noise, drainage, electrical requirements, access and manufacturer clearances before the final installation arrangement is confirmed.
Buy Heat Pump Hot Water Systems Across Major Australian Metro Areas
Customers who already have an appropriately licensed installer arranged can order heat pump hot water systems for supply across supported mainland Australian metro areas.
Our main heat pump hot water markets include Brisbane, Gold Coast, Sunshine Coast, Sydney, Melbourne, Perth and Adelaide, together with major regional and metropolitan centres including Townsville, Cairns, Toowoomba, Newcastle, Central Coast, Wollongong and Geelong.
Installation availability is separate from product supply. Brisbane and Gold Coast are the primary installed heat pump markets, while customers in other supported areas can purchase supply only where delivery is available and arrange their own appropriately licensed installer.
Replacing Electric, Gas or an Existing Heat Pump
A heat pump can replace an existing electric storage system, an older heat pump or, with the appropriate changes, a gas hot water system. The work required depends on what is already installed.
- Existing hot water type and capacity
- Household hot water demand
- Available outdoor installation space
- Required airflow and clearances
- Noise-sensitive areas nearby
- Electrical supply and circuit requirements
- Hot and cold water connection positions
- Drainage and condensate requirements
- Base and support requirements
- Access for installation and future servicing
Converting from gas may also require gas disconnection or capping and additional plumbing or electrical work. Replacing a conventional electric tank may require changes where the new heat pump has different dimensions, connection positions or electrical requirements.
Electric to Heat Pump, Gas to Heat Pump & Heat Pump Replacement
Electric → Heat Pump
Usually the most direct technology change because the property already uses electric hot water, but the new unit still needs suitable airflow, drainage, base, electrical connection and physical space.
Gas → Heat Pump
Can suit households moving away from gas. The job may include gas disconnection or capping plus new electrical and plumbing requirements, so it should be priced as a conversion rather than a simple swap.
Heat Pump → Heat Pump
Often the closest to like-for-like, but dimensions, noise, drain points, connection locations, power requirements and manufacturer clearances can still differ between models.
Heat Pump Hot Water Brands
The current Installed Today collection includes heat pump systems from established brands including Stiebel Eltron, Rheem, Rinnai, iStore, Dux, Envirosun and Aquatech, with different capacities, electrical requirements, controls and installation characteristics.
Brand alone should not determine the choice. Compare tank capacity, recovery performance, published noise level, physical dimensions, electrical connection, operating temperature range, warranty, controls and service requirements.
The most suitable heat pump is the one that matches the household and installation conditions rather than simply the model with the largest tank or longest feature list.
Heat Pump vs Electric Storage and Gas Hot Water
Heat Pump
Uses electricity to transfer heat from surrounding air into stored water. Usually considered when energy efficiency and lower electricity consumption are priorities.
Electric Storage
Simple, proven storage hot water with fewer location considerations around fan noise and airflow. Often straightforward when replacing an existing electric tank.
Gas Hot Water
Gas storage and continuous-flow systems may suit properties that already have an appropriate natural gas or LPG supply.
Choose How You Want to Order
Supply Only
Choose supply only if you already have appropriately licensed trades arranged and simply need the heat pump hot water system supplied.
Installation, valves, disposal, electrical work, bases, pipework, drainage and other site work are not included unless specifically shown.
Brisbane Installation
Selected heat pump hot water systems are available with installation in eligible Brisbane metro service areas.
Availability depends on the product, postcode, existing system and site conditions.
Gold Coast Installation
Supplied and installed heat pump options are also available for selected products in eligible Gold Coast areas.
Product and installation options are confirmed during the ordering process.
Heat Pump Hot Water Price, Replacement, Rebates & Installation FAQs
How much does a heat pump hot water system cost?
At this September 2026 review, the lowest available product shown in the live Installed Today heat-pump collection is from $2,229. The product cards above remain the current price source. Final cost depends on the system, supply-only or installed pathway and any site-specific work.
Is the displayed heat pump price supply only?
The displayed product or “from” price is the starting system price unless the selected product or option specifically states installation is included. Review installation, electrical and site requirements before checkout.
How much does heat pump hot water installation cost?
Installation varies with the existing hot-water type, electrical connection, valves, base, drainage, condensate, airflow, access and whether the system stays in the same location. The applicable installation option on the product page is the correct starting point.
How much does it cost to replace electric hot water with a heat pump?
Start with the selected heat-pump product price, then add the installation pathway and any electrical, base, drainage, valve or plumbing changes needed to convert the existing electric setup. A heat pump is not automatically a direct tank-for-tank swap.
How much does it cost to replace an old heat pump?
An old-heat-pump-to-new-heat-pump replacement can be simpler where the existing location, drainage, electrical supply, base and plumbing suit the new model. Different dimensions, clearances and connection positions can still add work.
Can I replace gas hot water with a heat pump?
It can be possible where a suitable heat-pump location and electrical supply are available. Gas disconnection or capping, plumbing alterations, electrical work, base and drainage requirements can make this a more involved conversion than a like-for-like replacement.
Are heat pump hot water rebates available?
Eligible systems may qualify for STCs and some state-based incentives. Eligibility depends on the product, location, installer, installation pathway, date and current scheme rules. Supply only by itself does not guarantee eligibility.
Does a 10A heat pump just plug into a normal power point?
Not automatically. A 10A-compatible model may use a suitable power point where the manufacturer and installation requirements allow, but circuit protection, weatherproofing, location and the existing electrical setup still need to be suitable.
How much electricity does a heat pump use compared with electric storage?
Australian Government energy guidance states that heat-pump water heaters can use around 30% of the energy of a conventional electric hot-water system. Actual household use depends on model, climate, demand, installation and operating schedule.
Can I buy a heat pump hot water system supply only?
Yes. Supply only suits customers who already have appropriately licensed trades arranged or are outside an Installed Today installation area. Delivery availability depends on the selected product and destination.
Can Installed Today organise heat pump installation?
Selected heat pumps are available with installation in eligible Brisbane and Gold Coast service areas. Availability depends on product, postcode, existing system, electrical setup, access and site conditions.
Is delivery included in the advertised price?
Do not assume delivery is included unless the selected product, promotion or checkout specifically says so. Product supply and installation are separate considerations.
Compare the Complete Heat Pump Hot Water System
A good heat pump should suit the household, climate, property and installation position — not simply offer the largest tank or the lowest advertised purchase price.
Compare tank capacity, recovery performance, noise, airflow, electrical requirements, controls, operating temperature range, dimensions, warranty, serviceability and installation conditions before ordering.
Product specifications, pricing, STC eligibility and availability can change. Check the individual product information and selected installation option before placing your order.
Choose the Heat Pump First, Then Select Your Purchase Path
Use the product range above to compare current heat pump prices, tank sizes, 10A and hardwired options, noise ratings, controls and available variants. Choose supply only if your licensed trades are already arranged, or select an installation option where available in Brisbane and Gold Coast.
Compare Heat Pump Hot Water Systems Above ↑Heat Pump Hot Water System FAQs
Common questions about choosing, ordering and installing a heat pump hot water system for your home.
What is a heat pump hot water system?
A heat pump hot water system uses heat from the surrounding air to help heat water stored in a tank. It is often chosen as an energy-efficient upgrade from traditional electric storage hot water.
Can I buy a heat pump hot water system supply only?
Yes. Choose supply only if you already have a licensed installer arranged. Supply-only pricing is for the heat pump system only and does not include installation, valves, old unit removal, disposal, electrical work, pipework changes or compliance upgrades unless selected separately.
Can I order a heat pump hot water system supplied and installed?
Yes. Supplied and installed options are available for selected heat pump hot water systems in eligible Brisbane and Gold Coast service areas. Availability depends on your location, access, selected product, existing setup and site requirements.
Are heat pump hot water systems energy efficient?
Heat pump hot water systems are designed to use less electricity than many traditional electric storage systems. Actual running costs and savings depend on the model, household usage, climate, tariff setup, installation location and existing system being replaced.
What size heat pump hot water system do I need?
The right size depends on household size, shower habits, daily hot water use, recovery time, available space and the selected model. Family homes often compare larger storage capacities, while smaller households may suit a more compact option.
Can a heat pump replace my old electric hot water system?
In many cases, a heat pump can replace an existing electric storage hot water system, but the installation still needs to suit the property. Access, drainage, electrical supply, clearances, noise considerations and compliance requirements all need to be checked.
Can a heat pump replace a gas hot water system?
A heat pump may be an option when changing from gas to electric hot water, but extra plumbing, electrical or gas disconnection work may be required. The best option depends on your existing gas setup, electrical supply, household demand and installation location.
Where should a heat pump hot water system be installed?
Heat pump systems usually need suitable airflow, access, drainage and clearance around the unit. The best location depends on the model, property layout, manufacturer requirements, noise considerations and local installation conditions.
Are heat pump hot water systems noisy?
Heat pump systems include a fan and compressor, so they can make some operating noise. Noise levels vary by model and installation location, so placement should be considered carefully, especially near bedrooms, boundaries or neighbouring properties.
Do heat pump hot water systems qualify for rebates?
Some heat pump hot water systems may be eligible for incentives, certificates or rebates depending on the product, location, installer, property and current program rules. Eligibility can change, so it should be checked before ordering.
Does installation include old system removal and disposal?
Old system removal and disposal are not automatically included unless shown in the selected installation option or chosen as an add-on. Access, tank size, location and site conditions can affect what is required.
Does installation include electrical work?
Electrical work is not automatically included unless shown in the selected installation option or chosen as an add-on. Some heat pump installations may require electrical checks, circuit changes, isolators, timers or other work by a licensed electrician.
Do you install heat pump hot water systems in Brisbane and the Gold Coast?
Supplied and installed options are available for selected heat pump hot water systems in eligible Brisbane and Gold Coast service areas. Availability depends on the selected product, your address, access and installation requirements.