When winter arrives in southern Western Australia, choosing the right heating system becomes a priority. If you’re weighing reverse-cycle air conditioning against gas heating, you’re not alone. It’s one of the most common questions we hear from homeowners in Bunbury, Margaret River, and Dunsborough.
Both systems have their place, but the gap between them is widening. Running costs, pros and cons, and efficiency are all shifting in favour of electrically powered heat pumps. Let’s break down what each system offers and where your money is best spent.
How Reverse Cycle Air Conditioning Works
A reverse-cycle air conditioner is essentially a heat pump. It moves heat energy from one place to another rather than burning fuel to create it. In winter, the outdoor unit extracts warmth from the outside air (yes, even when it’s cold) and transfers it indoors. In summer, the process reverses to cool your home.
You can install reverse-cycle systems as split systems for individual rooms, or as ducted reverse-cycle units that service your entire home through ceiling or underfloor outlets. Modern heat pump technology has improved dramatically.
Because a reverse cycle system handles both heating and cooling, it replaces two separate appliances. That’s fewer service calls, less equipment cluttering your home, and one streamlined solution for year-round comfort.
How Ducted Gas Heating Works
Gas heating burns natural gas or LPG to generate heat, which is then distributed through your home. The most common types are ducted gas heating systems and standalone gas heaters like wall-mounted units or portable models.
Ducted gas works by heating air in a central furnace, usually installed under the floor or in the roof. That heated air is pushed through ducts to outlets in each room. Unflued gas heaters sit inside the living space and release combustion products directly into the room, which is why they need good ventilation.
Gas ducted heating has been popular in Perth and regional WA for decades, especially in homes built before 2010. It warms a room quickly and provides that familiar “toasty” feeling on cold mornings. However, gas heating only heats. You’ll still need separate air conditioners for summer, which means two systems to maintain and two sets of running costs.
Comparing Gas vs Reverse Cycle Heating Costs
The Climate Council’s Switch & Save report found that fully electric homes save between $500 and $1,900 per year on energy bills compared to homes using gas appliances. Those savings add up over the life of your heating system.
If you’ve got solar panels on your roof, your daytime heating costs drop even further. Running a reverse cycle system on solar power during the day can be almost free, while gas prices stay the same regardless of your solar setup.
Pros & Cons of Gas Ducted Heating
Gas heating has been a popular choice in Australia for decades, but it’s worth weighing up the benefits against the drawbacks.
Advantages of Gas Heating
- High heat output and fast warm-up times
- Keeps working during electricity blackouts
- Familiar technology with established service networks
Disadvantages of Gas Heating
- The highest running cost of any mainstream heating option in WA
- Produces more greenhouse gas emissions when you factor in flue losses and upstream methane leakage
- Requires a gas connection, which isn’t available in many new estates across the South West
- Unflued portable gas heaters can add nitrogen dioxide and carbon monoxide to indoor air (the WA Department of Health doesn’t recommend them)
- Heating-only, so you’ll need a separate cooling system for summer
Pros and Cons of Reverse Cycle Heating
Reverse cycle systems have become the go-to choice for new homes in temperate climates like ours. Here’s why, along with a few things to keep in mind.
Advantages of Ducted Reverse Cycle Heating
- Both heating and cooling in one appliance
- Cheapest per-unit heat in South West WA, especially if you have solar panels
- No on-site combustion, which means better indoor air quality
- Energy-efficient air conditioner models keep improving every year
Disadvantages of Ducted Reverse Cycle Heating
- The up-front cost of a ducted reverse cycle system is generally higher than that of a gas furnace
- Outdoor units need to be positioned away from salt spray if you’re near the coast (marine-grade casing helps)
- Performance can drop slightly in very cold weather, though this is rarely an issue in Busselton’s mild winters
Which Heating System Should You Choose?
For most homes in the southwest, reverse cycle heating makes the most sense. You’ll pay less to run it, you’ll get cooling for summer, and you won’t need a gas connection. If you’re building a new home or renovating, a ducted reverse cycle system gives you whole-house comfort with one efficient unit.
Gas ducted heating still has a place in homes that already have gas connected and need rapid heating in large spaces. However, with energy costs rising and governments phasing down new gas connections, reverse cycle is the future-proof option.
Our experienced team at Busselton Air specialises in Daikin reverse cycle systems, and we’ve been helping local families stay comfortable since 1994. We’ll size your system correctly, position the outdoor unit to handle coastal conditions, and set you up with regular air conditioning servicing to keep everything running smoothly.
Ready to Make the Switch with Busselton Air?
If you’re in Albany, Donnybrook, Yallingup, or anywhere across the south of Western Australia and you’re ready to talk about the best energy-efficient heating option for your home, we’re here to help.
As your local Daikin Super Dealer, we’ll give you an obligation-free assessment and a tailored quote. Contact us today to get started!