Multi Head vs Single Split Systems: Which Is Better for Winter Heating?
June 16th, 2025
Multi Head Vs Single Split Systems

It’s freezing cold, and your current heater isn’t cutting it. The corners of your rooms are still cold even with the heating running at full blast, so it’s probably time for an upgrade!

The question is, what kind of heating system is viable for your property? Instead of doing hours upon hours of research, this blog will give you a quick comparison to make the choice easier.

Multi-Head Split Systems: The Benefits

Multi Head Vs Single Split Systems

Multi-head split systems connect multiple indoor units to a single outdoor unit, meaning more flexible temperature control in different rooms or zones.

If your property has limited outdoor space or if you want your exterior to look more streamlined, a multi-head split system air conditioning might be perfect. What are some of the benefits? Let’s take a look!

Comfort for properties

Instead of a single system to heat a space, multi-head split systems basically mean up to 8 indoor units can be placed in your home, all of which are powered by a single outdoor unit! This, of course, depends on the brand and model of air conditioner you choose. Comfort features of Daikin are:

  • > Heat Plus. Wall-mounted units can warm up the room with 60 discharge temperatures for 30 minutes.
  • > Intelligent comfort. Wall-mounted units feature Daikin’s Intelligent Eye human sensor that ensures a draught-free comfort and energy-saving operations when the room is unoccupied.
  • > Priority room comfort feature allows you to shift up to 50% capacity from the other rooms to your priority when needed for faster heating.

They are a space saver

If you want to heat more than one room at a time, or a ducted heating system won’t work with your home design, multi-head split systems might be better for you! With a split system, you need one outlet

Design-wise, you can choose from cassette, slim duct, ceiling, or wall-mounted options that work for each room. If you want a quiet unit for a small home office or a higher-capacity unit for your lounge room, these systems accommodate your needs.

  • > Bulkhead concealed designs fit into the ceiling. Only the air grilles are visible.
  • > Ceiling cassettes work if there’s not enough ceiling space for a ducted system.
  • > Floor console designs are less intrusive and are installed against the wall at ground level.
  • > Wall-mounted designs speak for themselves and have many stylish options.

They are energy-efficient

Energy Efficient

The R32 refrigerant of the Super Multi NX enables increased energy efficiency and a redacted Global Warming Potential factor. Daikin has adopted the R32, a next-generation refrigerant that doesn’t deplete the ozone layer and has minimal effect on global warming.

Daikin Super Multi Nx R32

The peak power consumption is also lower, helping to alleviate power shortages in large cities during periods of high demand.

Control each unit independently

Multi-head split systems mean controlling and scheduling the temperature of each indoor unit individually. Better yet, they don’t need to run at the same time.

If your partner or children want specific temperatures, no one will be fighting over the thermostat!

Wi-Fi control

Are you at work for the day? Control your desired heating on your smartphone or tablet so your property is toasty-warm when you get home.

For example, the Mitsubishi Electric Wi-Fi control app means you can turn your unit off/on, change temperatures, modes, or fan speeds at the touch of a button.

What Are Single Split Systems?

Multi Head Vs Single Split Systems


Split systems
have two main units: an indoor unit (evaporator) and an outdoor unit (condenser). Components of a split system include the compressor, evaporator coil, condenser coil, and expansion valve, which remove heat from indoor air and push it outside.

However, not all split systems are reverse cycle; some only cool the air inside a building, so you need to double-check with your supplier. A reverse-cycle split system has indoor and outdoor components, but they reverse the refrigeration cycle, heating as well as cooling.

How does a single split system compare? Here are some of the reasons you might invest.

They are efficient

Energy consumption and overall cost are big considerations when picking a heating and cooling system. After all, one kW of energy consumed generates at least 3 kW of heating or cooling. As opposed to ducted heating, split systems have better Energy Star Ratings.

Calculate Heating Running Costs

Daikin models like the Alira X have Econo Mode, power consumption of the system is limited to prevent tripping your circuit breaker. Here are some of the cooling and heating running costs as per the Sustainability Victoria website:

Cooling And Heating Running Costs
Cooling And Heating Running Cost
Cooling And Heating Running Costs
Cooling And Heating Running Costs

Keep in mind that actual energy costs depend on:

  • > The area of your home being heated
  • > How well insulated your house is
  • > Your thermostat settings
  • > The amount of time the heating is run for each day
  • > Your local climate
  • > Your energy tariffs

Flexible and adaptable

Reverse cycle air conditioning units have advanced inverter technology and thermostat control, which adapts to the temperature of the room!

A conventional air con has an on or off operation, whereas inverter technology mimics the accelerator of a car: gently adjusting power and steadily maintaining a temperature without fluctuating it. You’ll experience uninterrupted comfort.

What about operation times? Schedule the unit to operate automatically throughout the day or week to suit your lifestyle.

Purifies the air

Purifies The Air

As well as warming up your spaces, a split system features a built-in air purification system, trapping fine airborne particles such as dust and smoke.

For example, Daikin’s Alira X and Zena models are integrated with Streamer Technology, an oxidative decomposition process that gets rid of bacteria, odours, and harmful substances. How effective is the Daikin Streamer Technology?

Purifies The Air

  • > Eliminates pollen more than 99.6% in 2 hours
  • > Eliminates mould more than 99.9% in 24 hours
  • > Eliminates allergens more than 99.61% in 24 hours

Room Size is calculated according to NRCC-54013 standard using cigarette smoke CADR tested according to JEM1467.

If you suffer from hayfever or respiratory conditions such as asthma, a split system makes your environment a lot healthier.

Quiet operation

Maximising your comfort obviously means a stable temperature, but noise levels are always an important factor.

Daikin models have a Quiet Mode so operation sound levels are reduced by 2-3dBA for quieter heating and cooling.

Comfort features

  • > Comfort mode, such as airflow optimised to stream upwards during cooling and downwards during heating.
  • > Powerful mode, which is a boost in heating or cooling for 20 minutes beyond normal capacity.
  • > The program’s dry function is an automatic intelligent airflow and temperature control to cut back room humidity.

Read: Hydronic Heating vs. Electric Heating: Pros and Cons.

What should you think about before buying a system?

  • > How many rooms or zones need to be heated?
  • > How much outdoor space do you have for an outdoor unit? Your property might not be suitable.
  • > What are your goals for energy savings and efficiency? The system you pick should work with your budget.
  • > What are the installation and long-term operating expenses? If you get a multi-head split system, what is the rough cost per month?
  • > What are your future goals? If you plan to purchase another property, plan to expand your current home (such as a property extension) or you have plans to transition to ducted heating and cooling instead, think about whether split or multi systems are for you.

Why might a multi-head split system not be for you?

In terms of design complexity, multi-head options have more complex components to manage refrigerant levels of more than one indoor unit.

With longer pipe runs, indoor units may be located further away from outdoor units, increasing the installation and material price. They also must be installed by certified professionals, which can be more expensive.

But if you have multiple rooms (such as a double-storey property or office building) multi-head split systems will give you temperature flexibility and heat your spaces.

Why might a split system be a better option?

A split system has a lower initial cost, an easier installation, and is cost-effective for single-room use.

Additionally, having only one indoor and outdoor unit means repair and maintenance aren’t going to be as pricey. That said, there’s potential for higher running costs if you’re using a split system to heat a large area.

Still unsure? Here are the Top Reasons to Choose a Mitsubishi Split System for Your Home!

Contact Us Today
Upgrade to Multi-Split AC
Learn the top benefits of installing a multi-split air conditioner for comfort, efficiency, and flexibility.

Need Heating and Cooling in Melbourne? Get an Online Quote!

Do you want to upgrade your old system?  For gas ducted heating, ducted reverse cycle heating and cooling, electric heating and cooling, or split systems, Aust Climate are reliable HVAC technicians and masters of heating and cooling.

In the HVAC business for over 25 years, we are fully trained and qualified technicians, always offering you a 6-year workmanship warranty. Locally owned and operated in Chirnside Park, Victoria, we help with sales and installation, warranty repairs, service repair, maintenance, and support builders and owners.

Contact us today for more information on our specials, new season products, and heating solutions you can count on.

Whether you need heating and cooling in Boronia, Bayswater, Burwood, Carnegie, Doncaster, Endeavour Hills, Glen Waverley, Healesville, Kilsyth, or Mitcham, call 03 9726 4444 or email admin@austclimate.com.au for a free and fast quote.

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