Best ducted systems NZ 2026

A ducted system is the single biggest HVAC decision most NZ homeowners make. It heats and cools the entire house, lives in the ceiling for 15+ years, and costs more than a decent used car. Get the unit choice right and you'll barely think about it. Get it wrong and you're stuck with high running costs, uneven temperatures, or a system that struggles through a Waikato winter. Here are the five ducted systems we actually recommend in 2026 - and why.

How we chose these systems

We install ducted systems across the Waikato every week - new builds, renovations, and replacements. These picks are based on what performs well in real NZ homes, not spec sheets. We assessed each system on five factors:

• Efficiency: real-world COP and running costs, not just lab ratings
• Noise: both the indoor fan coil and outdoor compressor under normal operating conditions
• Zone capability: how many zones, how well the system handles partial loads, and controller compatibility
• Controller options: smart controls, app integration, scheduling, and temperature sensor support
• Warranty and parts: manufacturer warranty terms and how quickly you can get replacement parts in NZ

1. Best overall: Mitsubishi Electric PEA Splittable Series

The PEA Splittable Series is the ducted system we install most often, and it earns that spot on merit. The "splittable" design means the indoor fan coil separates into two sections for installation, which is a genuine practical advantage - it fits through standard ceiling hatches without cutting extra access holes. That matters more than you'd think when your builder has already lined the ceilings.

• Capacity range: 10.0 kW to 16.0 kW (covers three-bedroom homes through to large five-bedroom properties)
• Efficiency: COP 3.8-4.3 depending on capacity - strong for a ducted system
• Noise (indoor): 29-35 dB(A) - barely audible through ceiling grilles
• Noise (outdoor): 48-51 dB(A)
• Zoning: compatible with AirTouch 5, Mitsubishi Electric zone controllers, and most third-party options
• Warranty: 5-year parts and labour (as authorised Mitsubishi Electric installer)

Why we rate it highest: Mitsubishi Electric has the largest service and parts network in NZ. When something needs attention in year 8, parts arrive in days, not weeks. The PEA range has been refined over many generations and the reliability is genuinely excellent - we rarely see warranty claims on these units. As an authorised Mitsubishi Electric installer, we can offer the full manufacturer warranty with direct support.

The PEA handles partial loads well, meaning it modulates efficiently when you're only running two or three zones out of six. This is where cheaper systems struggle - they run at full power regardless of how many zones are open, wasting electricity.

The trade-off:It's not the cheapest ducted system available. The Daikin FDYAN costs less at the same capacity. If budget is tight and you need a reliable system without the premium, look at option three below. But for most homeowners who want the best balance of performance, reliability, and long-term support, this is the one.

2. Best compact: Mitsubishi Electric PEAD Series

The PEAD Series is Mitsubishi Electric's slimline ducted option, designed for homes where ceiling cavity space is limited. At just 250 mm high on the smaller models, it fits into tight ceiling spaces that the larger PEA cannot reach - making it ideal for older NZ homes with shallow ceiling cavities or renovations where space above the ceiling is at a premium.

• Capacity range: 5.0 kW to 14.0 kW (suits apartments through to mid-size family homes)
• Efficiency: COP 3.6-4.1 - competitive for a slim-profile unit
• Noise (indoor): 27-33 dB(A) - impressively quiet for the compact form factor
• Noise (outdoor): 46-50 dB(A)
• Zoning: compatible with AirTouch 5 and Mitsubishi Electric zone controllers
• Warranty: 5-year parts and labour (as authorised Mitsubishi Electric installer)

Why we like it: The PEAD solves a real problem that comes up regularly in the Waikato. Many 1990s and 2000s homes have roof trusses that leave only 300 mm of usable ceiling space in some areas. The PEAD fits where other ducted units simply cannot. It also works well as a single-zone or two-zone system for smaller homes or apartments where a full-size ducted system would be oversized.

You get the same Mitsubishi Electric reliability and parts network as the PEA, plus the same authorised installer warranty. For a two-to-three bedroom home or an apartment, the PEAD in the 7.1-10.0 kW range is often the perfect fit.

The trade-off:The compact design means slightly lower airflow capacity compared to the PEA at the same kW rating. For a large five-bedroom home with eight zones, the PEA is the better choice. The PEAD also has fewer ESP (external static pressure) options, which limits duct run lengths - so it's best suited to homes where the ductwork runs are relatively short.

3. Best budget: Daikin FDYAN Series

If you want a ducted system from a major brand without the premium price tag, the Daikin FDYAN is the one to look at. It is Daikin's workhorse ducted range - proven, well-supported in NZ, and meaningfully cheaper than the equivalent Mitsubishi Electric or premium Daikin models.

• Capacity range: 7.1 kW to 16.0 kW
• Efficiency: COP 3.5-3.9 - solid for the price point
• Noise (indoor): 31-38 dB(A) - audible on higher fan speeds but fine on low
• Noise (outdoor): 49-54 dB(A)
• Zoning: compatible with AirTouch 5 and Daikin zone controllers
• Warranty: 5-year parts and labour

Why we like it: Daikin is a massive global manufacturer with strong NZ support and parts availability. The FDYAN has been in the market for years and has a solid track record. For a new build where the budget is stretched across the entire fit-out, or a rental property where reliable whole-home climate control matters more than cutting-edge efficiency, the FDYAN delivers genuine value.

We see good longevity from these units. The inverter compressor technology is mature and well-proven. It pairs well with the AirTouch 5 controller for zone management, giving you smartphone control and per-room temperature sensors despite the lower unit price.

The trade-off: The COP is a step below the Mitsubishi PEA and noticeably below the Daikin US7. Over 10-15 years of heavy use, the efficiency difference adds up on the power bill. The indoor fan coil is also louder on medium and high fan speeds - not a problem in living areas but worth noting if duct runs pass directly above bedrooms. Build quality feels a step below the premium models, though functionally it performs well.

4. Best premium: Daikin US7 Ducted

The Daikin US7 is the quietest and most efficient ducted system available in NZ. If your budget allows for the premium and you want the best possible comfort and running costs, this is the system to specify. It is a genuinely impressive piece of engineering.

• Capacity range: 7.1 kW to 14.0 kW
• Efficiency: COP 4.2-4.6 - the highest of any ducted system in NZ
• Noise (indoor): 25-31 dB(A) - class-leading quiet
• Noise (outdoor): 46-49 dB(A)
• Zoning:compatible with AirTouch 5, Daikin zone controllers, and Daikin's own smart manager
• Warranty: 5-year parts and labour, with 7-year compressor warranty

Why we like it:The US7's efficiency is genuinely a cut above everything else in the ducted category. A COP of 4.5 on a ducted system is remarkable - that is territory normally reserved for high-end wall splits. In practical terms, the US7 costs 15-20% less to run than the FDYAN at the same capacity. Over 15 years, that difference can be $3,000-$5,000 depending on usage.

The noise levels are exceptional. On low fan speed, you genuinely cannot hear the system running - you only know it is on because the room is the right temperature. For bedrooms, this matters. The variable-speed compressor also means smoother temperature control with fewer fluctuations.

The trade-off: It costs $2,000-$4,000 more than the equivalent FDYAN. The capacity tops out at 14.0 kW, so for very large homes (200+ sqm of conditioned space) you may need the higher-capacity PEA or FDYAN instead. The payback period on the efficiency premium is 5-8 years for a system running 6+ hours daily through winter and summer, longer for lighter use.

5. Best reliable workhorse: Fujitsu ARTG Series

The Fujitsu ARTG Series is the ducted system that quietly gets the job done. It does not chase headline efficiency numbers or whisper-quiet ratings - it just delivers consistent, reliable whole-home heating and cooling year after year. We have ARTG units in the field that have been running for 12+ years without major issues.

• Capacity range: 7.1 kW to 18.0 kW (the widest range of any system on this list)
• Efficiency: COP 3.5-3.8 - mid-range, similar to the FDYAN
• Noise (indoor): 30-37 dB(A)
• Noise (outdoor): 49-54 dB(A)
• Zoning: compatible with AirTouch 5 and Fujitsu zone controllers
• Warranty: 5-year parts and labour

Why we like it: The ARTG goes up to 18.0 kW, which makes it the go-to for larger NZ homes where other brands top out. If you have a 200+ sqm home with seven or eight zones, the ARTG in the 16-18 kW range handles it comfortably. Fujitsu also has solid NZ support with good parts availability and a well-established dealer network.

The ARTG's high static pressure options are a practical advantage for homes with long duct runs or complex layouts. It pushes air further through the ductwork without losing performance, which matters in two-storey homes or sprawling single-level layouts.

The trade-off:The efficiency and noise levels are a step behind the Daikin US7 and Mitsubishi PEA. If you are comparing running costs, the US7 will save money over the ARTG's lifetime. The controller options are more limited than Mitsubishi Electric or Daikin - though pairing it with an AirTouch 5 solves that completely.

Side-by-side comparison

Here is how the five systems stack up against each other on the key metrics that matter for NZ homes:

• Highest efficiency: Daikin US7 (COP 4.2-4.6), followed by Mitsubishi PEA (3.8-4.3)
• Quietest operation: Daikin US7 (25-31 dB indoor), followed by Mitsubishi PEAD (27-33 dB)
• Largest capacity: Fujitsu ARTG (up to 18.0 kW), followed by Mitsubishi PEA and Daikin FDYAN (both 16.0 kW)
• Best value: Daikin FDYAN, then Fujitsu ARTG
• Best parts network: Mitsubishi Electric (PEA and PEAD), then Daikin
• Best for tight ceiling spaces: Mitsubishi PEAD (250 mm profile)

The controller matters as much as the system

A ducted system without zone control is like buying a house with only one light switch. You can turn everything on or everything off, but you cannot control individual rooms. That is why we recommend the AirTouch 5 as the zone controller for virtually every ducted installation we do.

Why AirTouch 5

The AirTouch 5 is compatible with all five systems on this list. It gives you a 7-inch touchscreen on the wall plus full smartphone control through the app. But the real advantage is per-room temperature management - you place wireless sensors in each zone and the system adjusts airflow automatically to maintain your target temperature in every room independently.

• Individual temperature targets: set 22 degrees in the living room and 18 degrees in the bedrooms
• Percentage-based airflow: reduce a zone to 25% airflow instead of fully closing it, which protects the system from excessive back-pressure
• Scheduling: set different temperatures and zones for morning, daytime, evening, and overnight
• Energy monitoring: see how much each zone is using so you can adjust habits and save money

Without proper zone control, you heat and cool empty rooms all day. With an AirTouch 5, most homeowners find their running costs drop by 20-30% compared to running the system unzoned. The controller pays for itself within one to two years.

Which system is right for your home?

The right ducted system depends on your home, your budget, and what you prioritise. Here is a quick guide:

• New build, 3-4 bedrooms, want the best all-rounder: Mitsubishi Electric PEA Splittable (10-12.5 kW)
• Renovation with limited ceiling space: Mitsubishi Electric PEAD (7.1-10.0 kW)
• Budget-conscious, want whole-home comfort: Daikin FDYAN (10.0-14.0 kW)
• Premium build, maximum efficiency and comfort: Daikin US7 (10.0-14.0 kW)
• Large home (200+ sqm), need maximum capacity: Fujitsu ARTG (14.0-18.0 kW)

Regardless of which system you choose, get a proper heat load calculation done before committing. The right capacity depends on insulation levels, window area, ceiling height, orientation, and how many zones you want to run simultaneously. An undersized system runs flat out and struggles on cold mornings. An oversized system short-cycles, wastes power, and wears out faster.

All five of these systems are proven performers in NZ conditions. The differences between them are real but relatively small compared to the difference between a properly designed duct layout and a poorly designed one. The installer's duct design, grille sizing, and zone configuration matter as much as the brand on the outdoor unit.