Ducted Gas Vs Reverse Cycle — What Melbourne Homeowners Are Choosing In 2026

You’ve got a gas ducted system that still works. Or maybe it’s making weird noises, the bills are biting harder than they used to, and you’re wondering if it’s time for something different. Gas or reverse cycle — what’s actually the right call for a Melbourne home in 2026? Let’s walk through it without the sales spin.

What’s Changed In Melbourne In 2026

The Victorian Government’s gas ban for new homes kicked in on 1 January 2024. From that date, new residential builds requiring planning permits can no longer connect to mains gas — they must go all-electric. That rule comes from the Victorian Department of Energy, Environment and Climate Action and applies across the state. The full policy is on the Energy Victoria website.

What that means for you:

• If you live in an existing gas-connected home: Nothing forces you to switch. You can keep using your ducted gas, replace it with another gas unit when it dies, or swap to reverse cycle by choice.
• If you’re building new: You’re going all-electric by default. Reverse cycle is the standard heating + cooling choice for new builds.
• If you’re doing major renovations involving new gas runs: Check with your builder — some councils now restrict new gas additions even on existing homes.

What Ducted Gas Still Does Well

Gas ducted heating isn’t obsolete. For Melbourne homes already set up for it, the strengths haven’t gone away:

• Fast warm-up: A gas burner hits temperature quickly. Reverse cycle climbs more gradually on cold mornings, especially if the house has been cold overnight.
• Even distribution: Ductwork delivers heat to every zone evenly when the system is well-balanced.
• Performance in deep cold: Gas doesn’t lose efficiency as outdoor temperatures drop. Reverse cycle does — though modern units handle Melbourne’s coldest mornings fine.
• Existing infrastructure: If your ducts, controllers, and gas line are all in good condition, replacing a gas unit with another ducted gas heating unit is usually a cheaper one-day job than swapping to reverse cycle.

What Reverse Cycle Does That Ducted Gas Can’t

• Heating AND cooling in one unit: The same system that warms you in winter cools you in summer. With ducted gas, summer cooling means a separate system entirely.
• Significantly lower running costs: A modern reverse cycle system produces three to five units of heat for every one unit of electricity it consumes. Gas can’t compete with that math.
• No combustion: No flue, no carbon monoxide risk, no annual gas servicing requirement.
• Smart zoning: Most modern reverse cycle ducted systems let you heat or cool individual rooms or zones independently — you’re not paying to warm an empty bedroom.
• Future-proof: Gas prices in Victoria have moved one direction over the last five years. Reverse cycle insulates you from that.

Real Running Costs For A Melbourne 3-Bedroom Home

Honest 2026 ranges for a typical Melbourne three-bedroom home, used at normal occupancy:

• Ducted gas annual running cost: $1,200 to $2,000 per year, depending on usage, tariff, and unit efficiency.
• Ducted reverse cycle annual running cost: $700 to $1,400 per year for a 5-star or better unit.
• Difference: Most households save $400 to $800 per year on running costs by switching, even before factoring in the cooling a reverse cycle system gives you.

Bear in mind: poorly insulated houses, oversized homes, or homes with lots of glass will sit at the upper end of these ranges regardless of system. Sealing draughts, insulating ceilings, and zoning properly does more for your bill than the system choice on its own. For more on the full cost picture of switching, see our breakdown on replacing gas ducted heating in Melbourne and replacing gas ducted with electric heating.

When Ducted Gas Still Wins

• Your existing gas system is under 10 years old and running well: Replace like-for-like when it eventually fails. You’re not throwing away a working asset.
• Your home has poor electrical capacity: Older homes on low-amperage supplies sometimes need a switchboard upgrade before they can run a ducted reverse cycle system — adds cost to the swap.
• You live in a particularly cold pocket of Melbourne or regional Victoria: Frost-prone microclimates can push reverse cycle harder. Worth modelling the specific home rather than going off the standard run.
• You only want heating, not cooling: A new ducted gas unit is cheaper upfront than ducted reverse cycle. If you’re sure you won’t want cooling, the math may still favour gas.

When Reverse Cycle Wins

• Your existing ducted gas unit is over 12 years old: You’re approaching replacement anyway. Adding cooling at the same time is far cheaper than retrofitting cooling later.
• You’re tired of paying for summer cooling separately: Splits in every room, evaporative on the roof, or a portable in the lounge — all of that goes away with one ducted reverse cycle.
• You’re renovating or extending: Brand new ductwork at the same time means a properly designed system, not a patched one.
• You want lower bills: Reverse cycle has won the running-cost race in Melbourne for the last few years and the gap is widening.
• You’re future-proofing for resale: Buyers increasingly ask about cooling and energy efficiency. Reverse cycle scores on both.

What Beyond Recommends Based On Your Home

For most Melbourne homes in 2026, reverse cycle ducted is the better long-term call. But not always. The right answer depends on the age and condition of your existing system, your electrical capacity, the layout of the home, and how you actually use the heating through the year. We do free in-home assessments across Melbourne — Fawkner, Craigieburn, and surrounding suburbs — and we’ll walk you through the numbers for your specific home. No pressure, no surprise quotes.

Frequently Asked Questions

Is Gas Heating Being Banned In Victoria?

Not for existing homes. From 1 January 2024, new residential builds requiring planning permits can’t connect to mains gas — they must go all-electric. Existing gas-connected homes can keep using their gas systems, replace them with new gas appliances, or switch to electric by choice. The ban applies to new builds, not retrofits.

Can I Still Replace My Old Ducted Gas System With A New Gas One?

Yes — in an existing home that’s already gas-connected, you can replace a failing ducted gas unit with another ducted gas unit. The work needs to be done by a licensed gas fitter and comply with current AS/NZS 5601 gas installation standards, but it’s not restricted by the new-build ban.

How Much Does It Cost To Switch From Ducted Gas To Reverse Cycle In Melbourne?

For a typical three-bedroom Melbourne home with existing ductwork in reasonable condition, a ducted reverse cycle install starts from $9,500 and can run to $15,000 or more for larger homes with more zones or premium units. If your switchboard needs an upgrade to handle the load, add another $1,500 to $2,500. Beyond gives fixed-price quotes after a free in-home assessment — no estimates that move once the work starts.

Does Reverse Cycle Work In Melbourne Winters?

Yes — modern reverse cycle units run efficiently down to around minus five degrees Celsius, which covers Melbourne’s coldest mornings comfortably. Output does drop in extreme cold compared to gas, but for the vast majority of Melbourne homes the difference is invisible in practice. Sizing the unit correctly for your home’s heat load is more important than the technology choice.

Will I Actually Save Money Switching To Reverse Cycle?

Most Melbourne households save between $400 and $800 per year on running costs after switching from ducted gas to ducted reverse cycle, based on similar usage. The bigger saving comes if you’re currently running gas heating in winter and a separate split or evaporative in summer — one ducted reverse cycle replaces both, removing the second system’s running cost entirely.

Do I Need An Electrician And A Gas Fitter For The Switchover?

Yes — a licensed gas fitter to disconnect and safely cap the old gas line, and a licensed electrician for the new reverse cycle unit’s electrical work and any switchboard upgrade. Beyond coordinates both trades as part of a complete swap so you’re not chasing different operators. Gas disconnection must be done by a Type A gas fitter under Energy Safe Victoria regulations.

How Long Does A Reverse Cycle Ducted Install Take?

For a typical three-bedroom Melbourne home with existing ductwork, a full swap is usually one to two days on site. If the existing ductwork needs replacement or reconfiguration, or the switchboard needs upgrading, plan for two to three days. We give a clear timeline as part of the quote so you can plan around it.

Want A Straight Answer For Your Home?

Book a free in-home assessment with Beyond Heating and Cooling. We’ll measure your home, look at your existing system, run the numbers on both options for your specific situation, and tell you which one we’d actually recommend — and why. Fawkner, Craigieburn, and across Melbourne. Call us or request a quote online.