Electric air conditioning vs gas heating: what's cheaper in Victoria?
When it comes to keeping your home warm during a Victorian winter, many households are asking the same question: gas heating or reverse cycle air conditioning, which is actually cheaper? The type of air conditioner you choose can significantly impact your comfort and energy bills.
With rising energy prices, government rebates, and a strong push toward electrification, the debate around gas vs reverse cycle cost has never been more relevant. If you’re trying to find the cheapest way to heat your home, understanding the real costs (both upfront and ongoing) is key.
In this guide, we break down the reverse cycle cost, gas heating expenses, efficiency differences, and long-term savings, so you can make the smartest choice for your home.
In this blog:
- Differences between gas vs reverse cycle heating systems
- How heating efficiency actually works (COP explained)
- Running cost of gas vs reverse cycle
- What to expect from reverse cycle
- What to expect from gas heating system
- Reverse cycle vs ducted gas- Which is the cheapest way to heat your home?
- Real savings: gas vs reverse cycle cost over time
Understanding gas vs electric systems
Gas heating
Gas heating systems are common across Victoria and typically come in two forms:
- Ducted gas heating (central heating throughout the home)
- Gas wall furnaces or space heaters
Gas systems generate heat by burning natural gas, which is then distributed through vents or directly into rooms.
Reverse cycle air conditioning
Reverse cycle air conditioners (also known as split systems) use electricity to both heat and cool your home. They work by transferring heat rather than generating it, making them significantly more energy efficient.
How heating efficiency actually works (COP explained)
The key concept is Coefficient of Performance (COP).
What is COP?
COP measures how much heat a system produces compared to the energy it consumes.
- A gas heater (90% efficient) has a COP of 0.9
- A reverse cycle air conditioner typically has a COP between 3.0 and 5.0
Gas heaters create heat by burning fuel.
Reverse cycle air conditioners move heat from outdoor air to inside your home using refrigerant technology.
Moving heat uses far less energy than generating heat from combustion.
That’s why reverse cycle heating is:
- 3–4 times more efficient than gas
- Significantly cheaper per degree of warmth
- Lower emission
Gas vs reverse cycle running costs compared
1. Energy efficiency
Reverse cycle systems are widely considered the most energy-efficient form of heating available today.
- A reverse cycle air conditioner can produce 3–5 units of heat for every 1 unit of electricity used
- Gas heating typically operates at around 80–95% efficiency
This means reverse cycle systems deliver more heat for less energy, directly impacting your energy bills.
2. Cost of energy in Victoria
Energy pricing plays a huge role in determining the cheapest way to heat your home.
- Gas prices in Victoria have risen significantly over the past few years
- Electricity prices are also increasing, but reverse cycle systems offset this with higher efficiency
In many cases, especially with modern systems, the reverse cycle cost to run is now lower than gas heating, particularly when heating individual rooms instead of the whole house.
3. Zoning and usage
One of the biggest hidden costs in heating is wasted energy.
- Gas ducted heating often heats the entire home, even unused rooms
- Reverse cycle systems allow you to heat only the spaces you’re using
This zoning flexibility makes reverse cycle systems a strong contender for the cheapest way to heat your home, especially for smaller households or those working from home.
Reverse cycle cost: What to expect
Upfront costs
Split system reverse cycle air conditioners typically range from $2,500 to $7,500 installed, depending on size and brand.
Multi-split or ducted reverse cycle systems cost more but offer whole-home solutions.
The good news? Victorian households may be eligible for government rebates, reducing the upfront cost significantly.
Programs like the Victorian Energy Upgrades and Emerald Program provide incentives to install energy-efficient reverse cycle air conditioners, often covering a significant portion of the purchase and installation costs. This means what might have once felt like a large investment can become a much more affordable upgrade.
By lowering the initial expense, these rebates not only make reverse cycle systems competitive in the gas vs reverse cycle cost comparison but also help homeowners start saving sooner through lower running costs, making it one of the cheapest ways to heat your home in the long term.
Gas heating costs: What to expect
Upfront costs
Gas ducted heating systems can cost between $5,000 and $12,000+ installed.
Additional costs may include ductwork and ongoing maintenance.
Running costs
Gas heating can appear cost-effective upfront, but ongoing expenses can add up:
· Rising gas tariffs mean higher winter bills
· Heating the entire home increases energy usage
· Older systems are often less efficient
In many Victorian households, gas heating is becoming more expensive to run than reverse cycle systems, particularly over long periods.
Reverse cycle vs ducted gas- Which is cheapest way to heat your home?
The verdict
For most Victorian homes today:
Reverse cycle air conditioning is the cheaper option in the long run.
Here’s why:
- Lower running costs due to high efficiency
- Ability to heat only occupied rooms
- Access to rebates and incentives
- Dual heating and cooling functionality
Additional benefits of reverse cycle systems
1. Better for the environment
Reverse cycle systems produce fewer emissions, especially when powered by renewable electricity.
2. Improved air quality
Gas heaters can produce indoor pollutants if not properly ventilated. Reverse cycle systems offer cleaner, filtered air.
3. Future-proofing your home
Victoria is moving toward electrification, and gas is gradually being phased out in new developments. Installing reverse cycle systems now helps future-proof your home.
From 1 January 2027:
- New homes must be fully electric
- No new gas connections permitted
From 1 March 2027:
- Gas heaters & gas hot water systems must be replaced with electric alternatives at end-of-life
Switching in 2026 means:
- Access to VEU rebates
- Planned installation
- No winter stress
4. Government rebates and incentives
Victorian homeowners may be eligible for rebates when upgrading from gas to energy-efficient electric systems.
Programs can offer:
· Thousands of dollars in upfront savings
· Reduced installation costs
· Incentives for energy-efficient upgrades
These rebates significantly lower the reverse cycle cost, making it even more competitive against gas heating.
5. Solar compatibility
One of the biggest advantages of reverse cycle air conditioners is their compatibility with solar power, which can dramatically reduce your energy bills. Because these systems run on electricity (unlike gas heating), they can be powered directly by rooftop solar, allowing you to heat and cool your home using the energy you generate yourself.
This means during sunny winter days, your heating can cost little to nothing to run, significantly lowering the overall reverse cycle cost.
Solar compatibility not only strengthens the case in the gas vs reverse cycle cost comparison but also makes reverse cycle one of the cheapest ways to heat your home long-term, while reducing your carbon footprint at the same time.
Real savings: gas vs reverse cycle cost over time
Let’s break it down:
Factor | Gas Heating | Reverse Cycle AC |
Upfront Cost | Medium–High | Medium (lower with rebates) |
Running Cost | High (rising gas prices) | Low |
Efficiency | Moderate | Very High |
Zoning | Limited | Excellent |
Cooling Capability | No | Yes |
Over a 5–10 year period, many households can save hundreds to thousands of dollars by switching to reverse cycle systems.
Final thoughts
When it comes to choosing between gas and electric, the gas vs reverse cycle cost comparison is becoming increasingly one-sided. With rising gas prices, improved technology, and access to government rebates, reverse cycle air conditioning is now one of the cheapest ways to heat your home in Victoria. Not only are the reverse cycle running costs lower, but the added benefits, like zoning, year-round heating and cooling, and solar compatibility, make it a smarter long-term investment.
For homeowners looking to reduce their energy bills and future-proof their property, switching to reverse cycle isn’t just a trend, it’s a practical, cost-effective upgrade that delivers comfort, efficiency, and real savings year after year.