Ducted Reverse Cycle Air Conditioning โ€” Whole-Home Comfort | 1st Choice Heating & Cooling
Ducted reverse cycle

Whole-home comfort. Nothing on the walls.

One indoor unit, hidden in the ceiling cavity. Conditioned air delivered through flush ceiling vents to every room. The most visually discreet way to air-condition an entire home โ€” and the system most people picture when they say "ducted."

โ˜… 4.9 Google rating Flush ceiling vents only Whole-home in one system 5-year warranty
CEILING CAVITY Fan coil unit BED 2 BED 1 LIVING KITCHEN OUTDOOR One indoor unit hidden in the cavity ยท multiple flush vents below Where it goes
How it works

A single indoor unit, delivering air to every room

Unlike split or bulkhead systems where the indoor unit lives in the room it serves, a ducted system has one large fan coil unit hidden in the ceiling cavity. It pushes conditioned air through insulated ducts to flush vents in each room.

1

Fan coil unit in the ceiling cavity

One large indoor unit lives above the ceiling โ€” usually in the roof void, sometimes in a service cupboard. Completely hidden from view in occupied spaces.

2

Insulated ducts distribute air

Flexible insulated ducts run through the ceiling cavity, branching from the fan coil unit to each room being conditioned.

3

Flush ceiling vents in each room

Air enters each room through flush ceiling vents โ€” typically rectangular grilles, sometimes round diffusers. Painted to match the ceiling if specified.

4

One outdoor unit powers it all

A single outdoor condenser sits outside the home. Refrigerant lines run between the outdoor unit and the indoor fan coil in the cavity.

Three AC formats, side by side

How ducted compares on visibility and cost

Split, bulkhead and ducted systems all do reverse cycle heating and cooling โ€” the differences are in how visible the indoor equipment is, and what your room and ceiling space allows.

Most visible ยท Lowest cost

Split system

Wall-mounted indoor unit in each room being conditioned. Visible white plastic box on the wall.

  • One unit per room
  • Lowest install cost
  • Easiest retrofit
  • Most exposed visually
Partially visible ยท Mid-tier

Bulkhead system

Indoor unit hidden in a plasterboard soffit. Only the slot diffuser shows.

  • One soffit per room/zone
  • Needs ~300mm ceiling drop
  • Clean walls, visible bulkhead
  • Best for new builds & renos
Least visible ยท Premium tier

Ducted system โ€” this page

One unit hidden in ceiling cavity. Only flush vents visible in the ceiling.

  • One system serves whole home
  • Needs adequate ceiling cavity
  • Whole walls and ceilings clean
  • Best for whole-home installs
The natural next step

Want each room at its own temperature?

A standard ducted system treats the whole home as one zone โ€” turn it on, and conditioned air goes to every vent. That's fine if you mostly use the whole house at once. But if you only use the bedrooms at night, the living room during the day, or you want different temperatures in different rooms โ€” you'll want to add zoning.

MyAir is the smart zoning add-on we install with most of our ducted systems. App-controlled, room-by-room temperature control, with the same single ducted system underneath.

โœ“App control from your phone โ€” open and close zones remotely
โœ“Individual room temperature targets, not just zone open/close
โœ“Schedule by time of day, day of week, or away mode
โœ“Reduces energy use by not conditioning rooms you're not in
Explore MyAir zoning
When ducted is the right answer

It's the right call when these are true

Ducted is the AC format of choice for most whole-home installs in suitable properties. Use this list to sense-check whether it's right for yours โ€” or if multi-split, bulkhead, or VRV might be a better fit.

You want the whole home conditioned

If you want every main room covered โ€” not just a couple of bedrooms โ€” ducted is usually the most efficient and clean way to do it from a single system.

You're building new or doing a major reno

Ducting is much easier to install during construction or a ceiling reno than as a retrofit. New builds and second-storey extensions are the natural moment for ducted.

You want minimal visible equipment

If wall-mounted splits are a hard no for aesthetic reasons โ€” or you've spent on architectural ceilings and walls โ€” ducted delivers comfort with only flush vents on display.

You want smart zoning (with MyAir)

If you want app-controlled, room-by-room temperature control, ducted + MyAir is the standard combination for that. Multi-split can do something similar but loses the visibility advantage.

Install considerations

Honest about what ducted needs

Ducted gives you the cleanest visual outcome of any AC format โ€” but it asks more of the home than splits or bulkheads. The biggest factor: you need enough ceiling cavity (or roof void) for the indoor unit and the ducts to run.

If your home is single-storey with a generous roof space, ducted is straightforward. If you've got cathedral ceilings, concrete slabs above, or a two-storey home where the upper floor sits directly on the lower ceiling โ€” retrofit gets significantly harder. We'll tell you honestly during the assessment whether ducted is realistic for your home or if multi-split or bulkhead would be a smarter call.

Book a feasibility check

What we plan for

โœ“Heat-load calculation across all rooms being conditioned
โœ“Fan coil unit sizing โ€” typically 7 to 16 kW for residential
โœ“Duct routing through ceiling cavity to each vent
โœ“Vent placement for even airflow and ceiling aesthetics
โœ“Outdoor unit siting (noise, airflow, electrical)
โš Adequate ceiling/roof cavity is essential โ€” not always retrofittable
โš Two-storey retrofits are significantly harder than single-storey
Common questions

Ducted system questions answered

Can ducted be installed in an existing home?

Sometimes, yes โ€” but it depends on the ceiling cavity. Single-storey homes with a generous roof void are usually straightforward. Two-storey homes where the upper floor sits on the lower ceiling are much harder โ€” you'd need to run ducts through wall cavities or sacrifice cupboard space. Cathedral or concrete ceilings often rule it out. We'll do a feasibility check at the assessment and tell you honestly. If ducted isn't realistic, multi-split or bulkhead is usually the practical alternative.

How does ducted handle different temperatures in different rooms?

A standard ducted system without zoning treats the whole home as one zone โ€” the system thermostat reads one temperature and the system runs to that target everywhere. To get different rooms at different temperatures, you need a zoning system. MyAir is the most common zoning add-on we install with ducted โ€” it gives you app-controlled, room-by-room temperature control while still using a single ducted system underneath. See the MyAir page for more.

Will ducted run my power bill up?

Modern ducted systems are inverter-driven and quite efficient at part-load. The running cost depends mainly on how much of the home you condition and how often. Without zoning, you're heating or cooling the whole home every time the system runs โ€” even rooms you're not in. With MyAir zoning, you can close off unused rooms and reduce energy use significantly. For households who only use a couple of rooms most of the time, the zoning add-on often pays for itself in lower bills.

How long does ducted installation take?

For a typical new build or single-storey home, a ducted install runs 2โ€“4 days depending on complexity. Two-storey homes or retrofits with awkward duct routing can extend that. We give a specific schedule at quote, and where possible we coordinate with builders or trades on site to minimise disruption.

How noisy is a ducted system inside the home?

Quieter than a split system in the same room โ€” because the indoor unit is in the ceiling cavity, not on the wall in the living space. You'll hear air movement at the vents but no compressor or fan sound directly. The outdoor unit is the noisier component; we site it sensibly during install (away from bedroom windows, on sound-dampened mounts where needed).

What brands do you install?

Daikin, Mitsubishi Electric, Fujitsu, Toshiba and Samsung are our most common ducted brands. Brivis and Braemar appear in budget-tier installs. We pick based on capacity needs, brand reliability for your application, and what fits your budget โ€” not based on which brand we have stock of. Every install comes with the full Australian manufacturer warranty.

What's the warranty on a ducted system?

5-year manufacturer warranty on the equipment is standard across the brands we install. Our workmanship warranty on the install itself is on top of that. We recommend an annual service to keep the warranty valid and the system running at design efficiency โ€” most issues we see in older ducted systems trace back to missed maintenance, not equipment failure.

Can I add ducted to one part of the house and split systems elsewhere?

Yes โ€” and it's a sensible approach where the home doesn't suit ducted everywhere. For example, a single-storey main living area gets ducted, while a second-storey extension that's too tight for duct routing gets a multi-split or bulkhead. We design hybrid setups regularly. The trade-off is two systems to maintain instead of one.

Ready when you are

Get an honest assessment for your home's ducted install

We'll check ceiling cavity feasibility, calculate the right capacity for your rooms, and tell you straight if ducted is the right call or if multi-split would do the same job for less.