Costs, Price Factors and 2026 Rebates
What drives the price of a split, ducted or heat pump hot water installation, and the federal and state incentives and gas rules that apply in 2026.
reverse cycle air conditioning and heat pump installation cost
Heating, cooling and heat pump hot water costs, worked out for Australian homes
An installation quote only makes sense once you know the capacity you need, what the installer has to run, which discounts apply in your state and what the system will cost to run. These guides show the arithmetic and the official sources.
- Illustrative price ranges for split, multi-head and ducted reverse cycle systems and heat pump water heaters
- How STCs, Victorian Energy Upgrades, Solar Victoria rebates and NSW Energy Savings Scheme discounts stack as of October 2026
- Licences to check, gas switch costs, consumer guarantees and where to complain
Explore by topic
Worked Estimates and Checklists
Sizing, running-cost arithmetic, gas-to-electric switch examples, rebate stacking and quote checklists, with every step shown.
Failures, Complaints and Official Sources
Licences to check, warranties and consumer guarantees, rebate scams, common installation failures and the official bodies to contact.
Start here
Costs, Price Factors and 2026 Rebates
Ducted vs split system air conditioning: upfront cost, running cost and which suits your home
How ducted reverse cycle and split system air conditioning compare in Australia on installed price, running costs, zoning, noise, looks and future replacement.
Costs, Price Factors and 2026 Rebates
Heat pump hot water cost in Australia: system types, tank sizes and what pushes the price up
What a heat pump water heater costs to supply and install in Australia, how integrated and split units differ, tank sizing, installation extras and incentives.
Costs, Price Factors and 2026 Rebates
Heating and cooling installation cost in Australia: split, ducted and heat pump hot water in 2026
What a reverse cycle split system, ducted system or heat pump water heater costs to install in Australia, what drives the price and which 2026 incentives apply.
Worked Estimates and Checklists
Heating and cooling quote checklist: what an air conditioning or heat pump quote should include
A step-by-step checklist for reading and comparing split system, ducted and heat pump hot water quotes in Australia, from site inspection to final payment.
Worked Estimates and Checklists
Gas heating vs reverse cycle running costs: how to compare the bills with your own tariffs
A step-by-step method for comparing the running cost of gas heating, reverse cycle air conditioning and hot water options in Australia, with MJ to kWh conversions and supply charges.
Costs, Price Factors and 2026 Rebates
Victoria's gas rules for homes: replacing gas hot water from 1 March 2027, new homes and disconnection
What Victoria's move away from household gas means for your hot water and heating, the end-of-life replacement rule from March 2027, new homes, exemptions and gas abolishment.
Tools
Heating and Cooling Installation Cost Estimator
Turn the capacity you need and the system type into an illustrative low and high installed price, plus fixed job costs.
Heat Pump Hot Water Payback Calculator
Work out the net cost of a heat pump water heater after STCs and state discounts, and how many years the running-cost savings take to repay it.
Heating and Cooling Upgrade Loan Calculator
Estimate monthly repayments and total interest on a green loan, personal loan or mortgage top-up used to pay for a heating, cooling or hot water upgrade.
Before-You-Sign Heating, Cooling and Hot Water Checklist
Tick off sizing, licences, incentives, electrical work, placement and warranty paperwork before you accept a quote.
Heating, cooling and hot water options compared
| Option | How it works | Good for | Watch out for |
|---|---|---|---|
| Wall split system (reverse cycle) | One indoor head and one outdoor unit joined by refrigerant pipes; heats and cools | Single living areas or bedrooms; lowest upfront cost per room | Placement of the head for even airflow; outdoor unit noise; long pipe runs add cost |
| Multi-head split system | One outdoor unit drives two or more indoor heads | Homes with limited outdoor space wanting several rooms done | If the outdoor unit fails, every room loses heating and cooling; sizing across heads |
| Ducted reverse cycle | Central indoor unit in the roof or under the floor; ducts and vents to each room; zones | Whole-house comfort with hidden equipment; new builds and renovations | Highest upfront cost; duct losses in hot roof spaces; zoning and return-air design matter |
| Floor console split | Low-mounted indoor unit blowing warm air near the floor | Rooms where heating matters more than cooling; under windows | Takes floor space; less suited to cooling large rooms |
Frequently asked questions
How much does a split system cost to install in Australia?
It depends mostly on capacity, the pipe run and electrical work. On this site's illustrative ranges, a back-to-back wall split costs roughly $350–$600 per kW plus fixed job costs, so a 7.1 kW unit lands around $3,200–$5,000. Run the installation cost estimator and compare with written quotes.
Is ducted or split system cheaper to run?
Per room heated or cooled, efficient split systems are usually cheaper to run because there are no duct losses and you only condition the room you are in. Ducted systems with good zoning can be close, but running every zone costs more. See ducted versus split.
How many STCs does a heat pump hot water system get in 2026?
It depends on the model's performance on the Clean Energy Regulator's register, your postcode zone and the installation year. The deeming period for 2026 installations is five years and falls by one year each year until the scheme ends in 2030, so the STC discount shrinks over time. Read the STC guide.
Do I have to replace my gas hot water with a heat pump in Victoria?
Solar Victoria states that from 1 March 2027 existing homes must replace gas hot water systems with an efficient electric alternative, such as a heat pump, when they reach end of life. Check exemptions and details on the Victorian Government's energy website. See the Victorian gas rules guide.
Who can install a split system air conditioner?
The refrigerant work must be done by a technician holding a refrigerant handling licence issued by the Australian Refrigeration Council (ARCtick), and the electrical connection by a licensed electrician. You can check a licence on the ARCtick website. See the licence guide.
Can I stack the Solar Victoria rebate with VEU discounts and STCs?
Often yes, but each program has its own rules and the order in which they apply matters. Solar Victoria's rebate is calculated on the price after other discounts. Confirm every amount on the written quote. The Victorian rebates guide shows an illustrative stack.
What if my new air conditioner breaks after the manufacturer's warranty ends?
The consumer guarantees under the Australian Consumer Law can still apply for a reasonable time after purchase, which depends on the price and type of product. Contact the business that sold it, then your state fair trading agency. See warranties and consumer guarantees.
How this site is made
Reverse Cycle Notes is an independent information project. Guides are drafted with the help of AI writing tools and checked against official and primary sources before publication; see our Editorial Policy. We are not affiliated with any provider mentioned on the site and do not sell products or services.