Air conditioning is no longer a luxury in Singapore — it’s a necessity. Here, households rely on aircon systems for comfort and better sleep because of the hot and humid climate. If you’re planning to install or upgrade your air conditioning system, you might be wondering whether to choose a single split or a multi split aircon.
Both options are popular in Singapore for their specific pros and cons. Let’s try to understand the differences between multi and single split aircons and identify which one is more suitable for your home or office.
What Is a Single Split Aircon?
A single split air conditioner comprises one indoor and one outdoor unit. Its purpose is to cool a single room or area at a time. Every indoor unit operates independently and is linked to its dedicated outdoor unit.
If you require cooling only one location, such as a study, small office, or a bedroom, this type of air conditioner is the best option. This unit is easy to install, typically has a lower initial cost, and requires very little maintenance.
In Singapore, many HDB flat owners prefer single split aircon for individual rooms as it makes life easier with minimum expenses.
Pros and Cons of Single Split Aircon
Advantages:
- Lower upfront cost
- Simple installation
- Less maintenance
- Energy efficient for one-room use
Disadvantages:
- Requires more space for outdoor units
- Not suitable for multiple rooms
- Can be noisy outside
What Is a Multi Split Aircon?
A multi-split air conditioner is connected to two or more indoor units with a single outdoor unit. It enables the cooling of multiple rooms at once using a single compressor located outside the building. Each indoor unit has its own thermostat and can be controlled independently.
This configuration is ideal for larger single family houses, condominiums or office spaces to cool multiple rooms simultaneously. These systems can save outdoor real estate spaces which is quite crucial in Singapore.
Though the cost of installing is greater, multi-split systems improves energy efficiency and have greater benefits.
Pros and cons of multi split aircon
Advantages:
- One outdoor unit serves multiple rooms
- Saves wall or balcony space
- Better aesthetics as only one outdoor is installed
- Energy efficient when used in several rooms
Disadvantages:
- Higher installation cost
- Complex installation and piping
- If the outdoor unit fails, all rooms are affected
Key Differences Between Single and Multi Split Aircon
Below are the key differences between a single and multi split aircon system:
| Feature | Single Split Aircon | Multi Split Aircon |
| Indoor Units | 1 per outdoor unit | 2 or more |
| Outdoor Units Required | 1 for each indoor unit | Only 1 for multiple units |
| Ideal For | Cooling one room | Cooling multiple rooms |
| Installation Cost | Lower | Higher |
| Energy Efficiency | Good for single use | Efficient for multiple use |
| Control System | Individual control | Individual control per room |
| Outdoor Space Needed | More space needed | Saves space |
| Maintenance | Simple | More complex |
| Flexibility | Not expandable | Some systems allow upgrades |
Single or Multi Split: Which Aircon System Is Right for You?
The preference depends on your cooling needs, budget, and available space.
If you want to cool a single room like the study room and bedroom, a single split system will work best. It is practical in terms of cost, installation process, and maintenance.
However, for projects like renovations or if you need cooling in multiple rooms such as living rooms, master bedrooms, and children’s rooms, then a multi split system works the best. A multi split system is more space saving. It allows individual control in different rooms, and has only one outdoor unit which looks neater.
For instance, balconies in new Singapore condos do not offer much space, therefore multi split aircon systems are trending.
Energy and Cost Considerations in Singapore
Electricity is a major expense in Singapore, particularly for families with air conditioners running on a daily basis. Generally, both multi or single split systems are energy-efficient as long as both are used correctly. Still, several single split units may incur greater electricity expenses than an efficiently designed multi split system.
Pay attention to your home’s dimensions and structure while deciding on aircon system. A 5-room HDB flat with 3 bedrooms and a living area may benefit from a multi split system. However, some people may only want to cool their bedrooms and if that’s the case, single splits are the way to go.
FAQs
What is the main difference between single split and multi split aircon?
A single split aircon cools one room with its own outdoor unit. A multi split aircon, on the other hand, cools multiple rooms using just one outdoor unit.
Which is cheaper to install?
Single split systems are cheaper to install initially. Multi split systems cost more upfront but can be more space-efficient.
Can I use multiple single split aircons in different rooms?
Yes, you can install several single split systems in different rooms, but it requires more space for outdoor units.
Does a multi split aircon use more electricity?
Not necessarily. If used wisely, a multi split system can be more energy-efficient for multiple rooms.
What happens if the outdoor unit of a multi split system fails?
If the outdoor unit breaks down, all indoor units connected to it will stop working.
Conclusion
Choosing between single split and multi split aircon units is not straightforward. It is dependent on the number of rooms that need to be cooled, your financial plan, and the accessibility for the outdoor units. Stick with a single split for small setups or single-room use. For larger homes or multi-room needs, a multi split system will save overall space and provide better control.
Take advice from a certified technician before making decision. Always get in touch with a licensed installer in Singapore to examine your home layout and get professional advice.
