When it comes to air conditioning multiple rooms in your home, a very common question arises:
👉 Is it better to use a conventional or multi-split system?
The right choice makes all the difference in comfort, energy consumption, aesthetics, and installation cost.
In this video, you will understand in a simple way which is the best option for your situation.
🔹 Conventional System: One Condenser for Each Evaporator
In a conventional system, each indoor unit has its own outdoor unit.
📌 In other words:
1 evaporator = 1 condenser
3 evaporators = 3 condensers
✅ Advantages
✔️ Simpler installation
✔️ Lower initial cost per unit
✔️ Easier individual maintenance
⚠️ Disadvantages
❌ Occupies more external space
❌ Visual clutter on the facade
❌ May increase total energy consumption
🔹 Multi-Split System: One Condenser for Multiple Evaporators
In a multi-split system, a single condenser supplies multiple indoor units.
📌 Depending on the model:
1 condenser can power 2 to 5 evaporators
✅ Advantages
✔️ Saves external space
✔️ Cleaner and more elegant facade
✔️ Fewer outdoor units
⚠️ Points to consider
❗ More technical installation
❗ Higher initial cost
❗ If the condenser stops, all evaporators stop
👉 This is a solution widely used in apartments and houses with limited outdoor space.
📐 Thermal Load Planning: A Fundamental Step
Before any installation, there is a step that cannot be ignored:
the calculation of the thermal load.
This calculation defines:
✔️ How many BTUs each room needs
✔️ Which model to use in each room
✔️ The correct size of the system
🎯 The goal is simple: to guarantee comfort without wasting energy. An undersized unit works harder.
An oversized one wastes energy.
🏠 Home Infrastructure
To safely install multiple split systems, the house needs to be prepared.
⚡ Electrical Network
Each unit needs an appropriate circuit breaker.
In a multi-split system, the power supply is more centralized.
It may be necessary to review the electrical panel.
🔧 Piping and Drainage
Each evaporator needs copper piping.
The drainage must be well planned.
This prevents unsightly crossings and future leaks.
📍 Strategic Location of Units
Correct positioning makes all the difference in performance.
✔️ Good air distribution
✔️ Lower noise level
✔️ Easy access for maintenance
✔️ Correct distance between evaporators and condenser
⚠️ In a multi-split system, this distance is even more critical.
🌟 Advantages of Multiple Split Air Conditioning
When well-planned, the system offers great benefits:
✅ Individual comfort per room
✅ Better energy control
✅ Cleaner exterior aesthetics (especially with multi-split systems)
✅ Increased property value
✅ Conclusion
Installing multiple split systems is an excellent choice for those who want thermal comfort throughout the house.
The decision between a conventional or multi-split system depends on:
🔹 Available space
🔹 Budget
🔹 Electrical design
🔹 Aesthetic preference
👉 With the support of a qualified professional, it's possible to make the right choice and ensure a safe, efficient, and long-lasting installation.