As Australia heads into another winter, the choice of heating system can significantly impact your household budget. For 2026, reverse cycle air conditioners (heat pumps) emerge as the most cost-effective heating solution for the vast majority of Australian homes, offering substantial running cost savings over traditional gas and electric resistance heaters. With potential first-year savings reaching up to $1,700 or more when combining energy efficiency upgrades with available state and federal rebates, understanding your options is crucial.
The Australian energy landscape in 2026 continues to see fluctuating prices, but the trend for electricity, particularly with the new Default Market Offer (DMO) and Victorian Default Offer (VDO) prices effective from 1 July 2026, shows some relief for many households. This, coupled with the inherent efficiency of heat pump technology, positions reverse cycle systems as the smart choice for long-term savings and comfort.
Understanding Your Heating Options for 2026
Australians typically choose from three primary heating methods:
- Reverse Cycle Air Conditioning (Heat Pumps): These systems move heat from one place to another, rather than generating it. In winter, they extract heat from the outside air (even on cold days) and transfer it indoors. They are highly efficient, providing both heating and cooling.
- Gas Heating: This includes ducted gas heating, gas log fires, and portable gas heaters. They burn natural gas or LPG to produce heat. While natural gas has historically been a cheaper fuel, its efficiency can vary, and environmental concerns are growing.
- Electric Resistance Heating: This category includes portable electric heaters (bar heaters, fan heaters, oil column heaters) and fixed electric panel heaters. They generate heat by passing electricity through a resistive element. While cheap to purchase, they are generally the least energy-efficient and most expensive to run.
The Cost Breakdown: Upfront vs. Running Costs in 2026
Choosing a heating system involves considering both the initial purchase and installation cost, and the ongoing running costs that will impact your energy bills for years to come. Here’s how they stack up in 2026.
Electricity Prices (Effective 1 July 2026)
For households on standing offers, the Australian Energy Regulator (AER) has announced its final Default Market Offer (DMO) for 2026-27, with prices set to fall for most residential customers in New South Wales (3.4% to 5.0%) and South East Queensland (7.2%) compared to last year. South Australian households on a flat rate will see a modest increase of 1.4%.
In Victoria, the Essential Services Commission (ESC) has finalised the Victorian Default Offer (VDO) for 2026-27, projecting average annual bills for domestic customers to be 5% lower. Specifically, residential customers on default rates in Victoria can expect price decreases of between 3.2% and 8.4% across distribution zones, with average annual bills falling around 5.0% to approximately $1,591 per year.
These DMO and VDO price changes primarily affect customers on standing offers. For those on market offers, competitive rates may vary, but the DMO/VDO acts as a reference price, influencing all retail offers.
New for 2026, the Solar Sharer Offer is being introduced in DMO regions (NSW, SE QLD, SA). This opt-in plan offers smart meter customers three hours of free electricity in the middle of the day, allowing for significant savings if usage can be shifted.
Overall, general retail electricity rates in Australia can range from 25 cents to 45 cents per kilowatt-hour (kWh), depending on your state, retailer, and tariff structure.
Gas Prices (2026)
Natural gas running costs are generally around 11-15 cents per kWh equivalent, while LPG can range from 17-20 cents per kWh equivalent. While gas has historically been cheaper per unit of energy than electricity, the superior efficiency of modern reverse cycle systems often makes them more economical to run.
Indicative Upfront & Annual Running Costs (2026)
| Heating Type | Typical Upfront Cost (Supply & Install) | Indicative Annual Running Cost (Heating Only, Medium Home) | Efficiency Rating |
|---|---|---|---|
| Reverse Cycle (Split) | $1,400 – $3,000 | $200 – $400 (split system heating only) | 5-7 Star Energy Rating (COP 3-5+) |
| Reverse Cycle (Ducted) | $8,000 – $15,000 | $600 – $1,200 (ducted system heating only) | 5-7 Star Energy Rating (COP 3-5+) |
| Gas Ducted | $3,000 – $9,000 | $800 – $1,200 | 3-6 Star Energy Rating (Efficiency 80-95%) |
| Electric Resistance | $50 – $500 (portable/panel) | $1,000 – $2,500+ (highly variable, high usage) | 1 Star (100% efficient, but high input energy cost) |
Note: Annual running costs are highly variable based on usage, insulation, climate, and specific energy plan. Figures are indicative for a typical Australian winter.
Heating Technology Deep Dive
Reverse Cycle Air Conditioning (Heat Pumps)
Reverse cycle air conditioners are the undisputed champions of energy efficiency for heating in Australia. Instead of generating heat, they transfer it, making them 3-5 times more efficient than electric resistance heaters and often significantly more efficient than gas heating. Their Coefficient of Performance (COP) typically ranges from 3 to 5+, meaning for every 1 unit of electricity consumed, they produce 3 to 5+ units of heat.
Popular models like the Daikin Alira X or Mitsubishi Heavy Industries Bronte series offer excellent energy star ratings and advanced features like inverter technology for precise temperature control and lower running costs. For example, a 7.0 Star rated reverse cycle air conditioner could cost around $1,612 per year to run for both heating and cooling in a typical scenario.
For a medium-sized home, running a reverse cycle air conditioner for heating and cooling typically costs around $500 – $900 per year, depending on how much the system is used.
Upfront Costs: A new split system reverse cycle unit can cost between $1,400 to $3,000 installed, while ducted systems range from $8,000 to $15,000 installed.
Gas Heating
Gas heating, particularly ducted systems, offers consistent whole-home warmth. While natural gas is often cheaper per unit than electricity, the overall efficiency of burning gas is lower than a heat pump. Running costs for ducted gas heating can be between $800 and $1,200 annually for a medium home.
Upfront Costs: Installing a new ducted gas heating system typically costs between $3,000 and $9,000, with more complex systems exceeding $10,000.
Environmental Considerations: Gas heating contributes to greenhouse gas emissions. As Australia moves towards decarbonisation, many states and territories are encouraging electrification. For more on this, consider our guide on Optimise EV Charging with Solar This Winter 2026: Max Savings Guide which touches on the broader electrification trend.
Electric Resistance Heating
Electric resistance heaters, such as portable bar heaters, fan heaters, and oil column heaters, are inexpensive to buy (often under $100-$300). However, they convert almost 100% of the electricity they consume directly into heat, meaning their efficiency (COP of 1) is significantly lower than a reverse cycle system. At typical Australian electricity rates of 25-45c/kWh, these are the most expensive heating option to run.
For example, a 2.4kW electric bar heater running for just 8 hours a day for four months (120 days) at an average electricity rate of $0.35/kWh would cost approximately $1,008 for the winter season. This makes them suitable only for very small spaces or occasional, short-term use.
Australian Government & State Rebates in 2026
Taking advantage of available rebates and incentives can significantly reduce the upfront cost of upgrading to an efficient heating system.
New South Wales
- Home Energy Saver Program: Launched 17 June 2026, this program offers eligible NSW households zero-interest loans of up to $15,000 for energy-saving upgrades, including reverse cycle air conditioning. This is available to households with a combined taxable income up to $210,000.
- Targeted Discounts: Later in 2026, discounts of up to $4,000 will be available for lower-income households (combined income under $80,000 or concession card holders). These can be combined with the zero-interest loans.
- Energy Savings Scheme (ESS): This market-based program incentivises energy-efficient equipment installations, including reverse cycle AC, by reducing their upfront cost through accredited providers.
- Concession Rebates: Eligible NSW residents can claim rebates like the Low Income Household Rebate (up to ~$285/year), Family Energy Rebate, Seniors Energy Rebate, Medical Energy Rebate, and the Gas Rebate (up to $110/year).
Victoria
While Victoria doesn’t have direct upfront rebates for reverse cycle AC as prominent as NSW’s new loan scheme, the Victorian Default Offer (VDO) price reductions for 2026-27 will provide direct bill relief. Additionally, the Victorian Energy Upgrades (VEU) program continues to support a range of energy-efficient products, which may include heat pumps through accredited providers. Always check the latest VEU offerings.
South Australia
- Retailer Energy Productivity Scheme (REPS): SA’s REPS requires energy retailers to offer discounted or free upgrades, including efficient reverse cycle air conditioning. Offers vary by retailer and accredited provider, with priority for concession and low-income homes.
- Federal Small-scale Technology Certificates (STCs): Heat pump systems (which modern reverse cycle air conditioners technically are) qualify for STCs, providing an upfront discount on installation. A typical 14kW ducted reverse-cycle installation in Adelaide could see $1,500–$3,500 in total rebates, largely from STCs.
- SA Concessions Energy Discount Offer (SACEDO): Eligible concession customers with Origin Energy can receive 20% off DMO electricity and 15% off gas usage/supply, potentially saving up to $653 per year on electricity and gas combined. The annual energy concession rate for SA is also increasing to up to $291.27 from 1 July 2026.
Maximising Your Savings Beyond the Heater
Beyond choosing the right heating system and claiming rebates, several strategies can further slash your winter bills:
- Insulation & Draught Proofing: Upgrading your home’s insulation and sealing draughts can significantly reduce heat loss, making any heating system more effective. For detailed advice, see our guide on Cut Winter Energy Bills by $400+: Best Home Insulation & Draught Proofing Upgrades in Australia 2026.
- Smart Thermostats: Utilise programmable thermostats to only heat when and where needed.
- Optimal Temperature Settings: Aim for 18-20°C for heating. Every degree higher can add 5-10% to your energy consumption.
- Zone Heating: If you have a ducted system, only heat the rooms you are using.
- Energy Audits: Consider a professional energy audit to identify specific areas for improvement. Our guide How to Get a Free or Discounted Home Energy Audit in Australia 2026: State Rebates & Benefits provides state-specific information.
- Compare Energy Plans: Regularly compare electricity and gas plans to ensure you’re on the most competitive market offer, especially with the DMO/VDO changes. The new Solar Sharer Offer is also worth exploring if you have a smart meter.
Bottom Line
For Australian households in 2026 looking to significantly cut their winter energy bills, investing in a high-efficiency reverse cycle air conditioner is the clear front-runner. While the upfront cost may be higher than a portable electric heater, the long-term running cost savings are substantial. When combined with state-specific rebates and federal incentives, the first-year benefits alone can be considerable – potentially reaching over $1,700 for eligible households replacing an inefficient electric heater with a new reverse cycle system and leveraging available grants like federal STCs and state schemes in NSW or SA.
Gas heating remains an option, particularly for homes already connected to natural gas, but its efficiency and environmental impact are less favourable than reverse cycle. Electric resistance heaters should be considered only for very limited, short-term use due to their high running costs. Prioritise energy efficiency, utilise available government support, and implement smart usage habits to keep your home warm without breaking the bank this winter.