
Ductless aircon systems are a fantastic option for both homes and businesses.
They can be installed in individual rooms or zones, allowing for greater control over the temperature and air quality in each area.
This flexibility is especially useful in open-plan spaces or areas with high ceilings.
Ductless systems are also much quieter than traditional aircon systems, with some models producing noise levels as low as 19 decibels.
This makes them perfect for homes with bedrooms or offices that require a peaceful environment.
In addition to their quiet operation, ductless aircon systems are also highly efficient, with some models achieving Energy Star ratings.
They can also be installed in areas with limited space, such as small offices or apartments.
What is a Ductless Aircon?
A ductless aircon is a type of air conditioning system that doesn't require ducts to distribute cooled air.
It has two main components: an outdoor compressor/condenser and an indoor air-handling unit.
These components are connected by a conduit that houses the power cable, refrigerant tubing, and a condensate drain.
This setup allows for efficient and flexible cooling, making it a great option for homes and buildings with unique cooling needs.
Consider reading: Lg Aircon Not Cooling
Advantages and Benefits
Ductless aircon systems offer numerous advantages and benefits. They're compact and flexible, allowing for zoning and cooling individual rooms. This means you can efficiently cool specific areas of your home, rather than the entire house.
One of the key benefits of mini-split systems is their easy installation. They typically require only a small hole through a wall for the conduit, and the outdoor unit can be located up to 50 feet away from the indoor unit. This flexibility in placement is a major advantage over traditional ducted HVAC systems.
Mini-splits also offer energy efficiency, as they avoid the energy losses associated with ductwork. In fact, ducts can account for more than 30% of energy consumption for air conditioning. This means you can save money on your energy bills while staying cool and comfortable.
Here are some key benefits of ductless aircon systems:
- Small size and flexibility
- Easy installation
- Energy efficiency
- Design flexibility
- Dual functionality (heating and cooling)
How Heat Pumps Function
Heat pumps are a great alternative to traditional heating and cooling systems. They're quiet, efficient, and can even work in cold temperatures.
The illustration in our example shows how a ductless heat pump works in both cold and warm seasons. The head unit inside extracts heat from the refrigerant, which is carried directly from the outside unit.
In warmer months, the system works in reverse to provide quiet and efficient air conditioning. This is a big advantage over traditional window units.
Here are some additional benefits of switching to heat pumps:
- Lower energy bills by switching from electric resistance, propane, and oil to heat pumps.
- No combustion means better indoor air quality because there are no direct emissions such as NOx, carbon dioxide, or carbon monoxide.
- No fuel storage or risk of running out of fuel.
Mini-Split System Benefits
Mini-splits are compact and flexible, allowing for zoning and cooling individual rooms, which is a big advantage in homes with multiple areas that require different temperatures.
They're also easy to install, requiring only a small hole through a wall for the conduit, and the outdoor unit can be located up to 50 feet away from the indoor unit, offering flexibility in placement.
Without ducts, minisplits avoid the energy losses associated with ductwork in central forced air systems, which can account for more than 30% of energy consumption for air conditioning.
Mini-splits offer a lot of flexibility in sizing the system to your needs, with indoor units varying in size based on what the room needs, and they're typically mounted high on a room's wall and are about the size of a long duffel bag.
Here are some key benefits of mini-split systems:
- Small size and flexibility
- Easy installation
- Energy efficiency
- Design flexibility
- Dual functionality (cooling and heating)
Mini-splits also offer a lot of control, beyond their ability to be programmed like a regular thermostat, with some models able to sense when someone is in the room (or not) and adjust the temperature accordingly.
Drawbacks of Mini-Split Systems
Mini-split systems have some drawbacks that are worth considering. Higher cost is one of the main disadvantages, with systems costing twice as much as window units of similar capacity.
Installation challenges can also be a problem, as correctly sizing each indoor unit and choosing the best installation location is crucial. Oversized or poorly placed air handlers can lead to short cycling, wasting energy and failing to provide proper temperature or humidity control.
Worth a look: How to Install Aircon
Some people may not find the appearance of indoor units appealing, lacking the built-in look of central systems. Aesthetic concerns are a valid consideration, especially if you're looking for a more streamlined appearance.
Mini-split systems generally have lower MERV filters that are not typically able to capture small particles that greatly affect indoor air quality. This can be a drawback for those who prioritize air filtration.
Here are some key disadvantages of mini-split systems:
- Higher Cost
- Installation Challenges
- Aesthetic Concerns
- Lower Air Filtration
Energy Efficiency and Savings
A typical household's energy bill is around $1,900 annually, and almost half of that goes to heating and cooling. This is a significant expense that can be reduced with the right equipment.
Mini split heat pumps, which earn the ENERGY STAR label, use up to 60% less energy than standard home electric radiators. This is because they transfer rather than generate heat.
To get the most out of your heat pump, it's essential to use it year-round, even during winter. This is because heat pumps are more energy-efficient than furnaces or boilers.
If this caught your attention, see: Aircon Heat Mode
Here are some tips to optimize your heat pump's performance:
- Stick with a steady temperature to avoid energy waste.
- Avoid Auto mode to prevent the system from switching modes during unseasonably warm or cold days.
- Optimize fan speed to spread the heated or cooled air far enough to meet your needs.
- Clean your dust filters regularly to ensure the system works efficiently.
By following these tips and using a mini split heat pump, you can save energy, money, and greenhouse gas emissions.
Why Energy Star?
A typical household's energy bill is around $1,900 annually, and almost half of that goes to heating and cooling.
Mini split heat pumps can help cut these costs by transferring rather than generating heat, using up to 60% less energy than standard home electric radiators.
These systems are also a smart investment year-round, providing both heating and cooling from the same system, keeping your home comfortable no matter the season.
By installing an ENERGY STAR certified mini split heat pump, you can save money and protect the climate.
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Savings Tips
Using your heat pump year-round can be more energy-efficient than relying on a furnace or boiler, even during winter. This is because heat pumps are designed to work efficiently in a wide range of temperatures.
Stick to a comfortable temperature all the time, instead of trying to save energy by turning it down when you're away or asleep. This is because heat pumps don't work the same way as furnaces or boilers.
Avoid using the Auto mode on your heat pump, as it can cause the system to switch between heating and cooling modes during unseasonably warm or cold days. This can waste energy and reduce the system's efficiency.
Optimizing your fan speed can help you save energy and get the most out of your heat pump. Try using the "auto fan" setting or adjusting the fan to the lowest speed that will still spread the air far enough to meet your needs.
Don't forget to clean your dust filters regularly, as dirty filters can reduce your heat pump's efficiency. Check your filters when they're visibly dirty or when indicated by the filter light.
Here are some key tips to keep in mind:
- Use your heat pump year-round for maximum efficiency.
- Stick to a comfortable temperature all the time.
- Avoid using Auto mode.
- Optimize your fan speed.
- Clean your dust filters regularly.
Choosing and Installing
Heat rises and cool air sinks, so keep that in mind when deciding where to place your indoor unit. This can affect how well it cools or heats different areas of your home.
Consider air flow when choosing a location. Open spaces are generally easier to cool, and it can be challenging for heat to move through an open doorway, let alone a closed one.
To simplify your installation process, run wiring through closets, basement/attic stairways, attached garages, basements, crawlspaces, or attics. This can minimize the need to patch or paint walls and ceilings.
Here are some key factors to consider when choosing an outdoor location for your ductless aircon:
Prioritize a location that's least intrusive based on your home and outdoor living needs. The right spot will be where personal aesthetic preference meets home layout.
Choosing
Choosing the right mini-split system for your home can be a bit overwhelming, but it's essential to get it right. You'll want to consider the size of your space and the climate you live in.

Mini-splits are ideal for small spaces, especially those without existing heating and cooling systems. They're perfect for rooms like additions, finished basements, attics, and garages.
For homes with uneven heating and cooling needs, mini-splits can be a game-changer. They can condition rooms that are off-kilter from the rest of the home, like sunrooms that heat up and cool down rapidly.
To ensure your mini-split system performs well, it's crucial to size it correctly. Your HVAC contractor can help determine the right size system for your home using a tool called "Manual J" that calculates your home's heating and cooling needs.
The flexibility of mini-split systems is another advantage. They come with individually controlled indoor units that can be sized to meet the specific needs of each room. This means you can direct the air either towards or away from you based on your preferences.
Installing a mini-split system can be easier than traditional ducted HVAC systems, especially since they don't require costly ductwork. This makes them a great option for retrofits and existing construction.
Proper installation is still essential, but with the right contractor, you can enjoy the benefits of a mini-split system.
If this caught your attention, see: Mini Split Aircon
Installation Tips

Installation Tips are crucial to get the most out of your new heat pump system. Heat rises, so areas on the top floor will be cooler than those on the lower floors.
Open spaces are generally easier to cool, but air flow is key. Consider the layout of your home and the path that air will take. If you have a lot of closed doors or tight spaces, it can be challenging for the heat to move around.
To simplify the installation process, think creatively about where to run the wiring. Closets, basement/attic stairways, and attached garages are all good options. This will minimize the need to patch or paint walls and ceilings.
For the outdoor unit, choose a location that's least intrusive based on your home and outdoor living needs. Unobstructed airflow is essential, so avoid tight placements with shrubs or structures. It's also a good idea to avoid installing the outdoor unit near doors and windows.
On a similar theme: Aircon Outdoor

Here are some key things to consider when choosing an outdoor location:
- Avoid installing the outdoor unit near doors and windows.
- Check the location related to roof runoff, and make sure the unit is equipped with a rain cap if necessary.
- Consider serviceability and ease of access when selecting an installation location.
By following these tips, you'll be able to get the most out of your heat pump system and enjoy a comfortable and efficient home.
How We Choose an Installer
Choosing an installer is a crucial part of the installation process, and it's essential to do your research.
Check the installer's qualifications, as a qualified installer will have the necessary training and experience to complete the job correctly.
A good installer should have a good reputation, with plenty of online reviews and testimonials from satisfied customers.
A reputable installer will also have the necessary licenses and certifications, such as a solar panel installation certification.
Make sure the installer is insured, so you're protected in case something goes wrong during the installation process.
Check if the installer uses high-quality materials and equipment, such as inverters with a good warranty.
A good installer will also provide a detailed quote, including all the costs and timelines for the installation.
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Why Choose Window or Portable AC?

Choosing a window or portable AC can be a great option for some households, especially those with limited space or no existing ductwork. Window ACs can be installed in just a few minutes and can be a good fit for small rooms or apartments.
They're also often more affordable than central air systems, with prices starting at around $150 for a basic model. Window ACs are a great option for renters or homeowners who don't want to make any major changes to their property.
Portable ACs offer even more flexibility, as they can be moved from room to room as needed. They're also relatively quiet and can be a good choice for people who live in noisy areas.
A fresh viewpoint: Window Aircon Servicing
Product and Warranty Information
We're committed to providing you with a reliable and long-lasting ductless aircon system. Our 5 Year Product Guarantee ensures that you're protected against any potential issues with your product.
Just register your product within 90 days, and you'll be covered for up to 5 years. This warranty includes parts and compressor coverage, giving you peace of mind that your investment is secure.
Product Finder
ENERGY STAR products are certified to save energy. This is a great way to know you're making an eco-friendly choice.
The ENERGY STAR Product Finder is a useful tool to help you find the right product for your needs. It can help you identify high efficiency equipment that meets the latest ENERGY STAR certification criteria.
Be sure to look for the ENERGY STAR certification when shopping for a ductless heating and cooling system. This will ensure you're getting a product that meets the energy efficiency standards.
Using the ENERGY STAR Product Finder can help you work with a professional installer to find the model that's right for you.
Product Guarantee (5-Year)
Our product guarantee is a standout feature that sets us apart from the competition. We offer a generous parts and compressor warranty for up to 5 years.
To take advantage of this guarantee, simply register your product within 90 days of purchase. This will ensure that you're covered in case anything goes wrong.
This warranty is a testament to our confidence in the quality of our products. We're committed to providing you with a reliable and long-lasting solution.
By registering your product on time, you'll be able to enjoy peace of mind knowing that you're protected for years to come.
Who Gets It
Ductless aircon is perfect for homes with limited space, as it doesn't require a bulky duct system.
You can install a single unit in a small apartment or a multi-unit system in a larger house.
It's ideal for homes with uneven heating and cooling needs, as each room can be controlled individually.
This flexibility makes it a great option for homes with different room layouts or usage patterns.
Ductless aircon is also a good choice for homes with high ceilings or open floor plans.
It's a great solution for homes with existing window units or portable air conditioners that are no longer effective.
This type of system is especially useful for homes with insulation issues or poor air sealing.
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Smart Controllers
Smart controllers can be a game-changer for ductless aircon systems, allowing you to control your mini-split from your phone. They're especially useful if you don't want to pay for professional installation.
The Ambi Climate 2 is a top contender, with its ability to monitor your home and external temperatures to adjust your AC throughout the day. It's a set-it-and-forget-it approach that adapts to your routine.
However, the Ambi Climate 2's app can be more complicated to use due to its depth and optional user settings. This might be overwhelming for some users.
The Flair Puck, on the other hand, is much simpler, with a cleaner and more straightforward app. It's a more straightforward replacement for the physical controllers that come with the mini-splits.
One of the Flair Puck's advantages is its direct control over the AC unit, which can't be done with the Ambi. You can also control it from the puck itself, which is a nice feature.
But, both the Ambi and Flair had issues with connectivity, especially with dual band WiFi. The signal strength to the AC is hit or miss, and the best range seems to be closer to 12-feet.
The Sensibo Sky was our least favorite of the three, with an unappealing design, a difficult-to-use app, and finicky controllers.
Related reading: Ductless Home Air Conditioning Systems
Frequently Asked Questions
Are ductless air conditioners any good?
Ductless air conditioners are a reliable and efficient option, offering easier installation and improved energy efficiency compared to traditional systems. They can provide significant savings and a more comfortable cooling experience, making them a great choice for many homeowners.
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