
Installing 1 air conditioner for 2 rooms causes quite a significant aesthetic loss to the space because you will have to demolish some walls to meet the installation requirements...
1. Installing a shared air conditioner for two rooms, thought to be creative but unexpectedly
Installing 1 air conditioner for 2 rooms causes quite a significant aesthetic loss to the space because you will have to demolish some walls to meet the installation requirements.
During hot summer days, the demand for air conditioner installation in households increases significantly, leading to considerable expenses for purchasing and electricity bills for this device.
To tackle the heat and save on installation costs, many families have opted for the method of installing one air conditioner to cool two adjacent rooms. Is this method right or wrong? Here's the most accurate answer!
Considering the cost of purchase and installation
One of the most noticeable advantages of installing 1 air conditioner for 2 rooms is that consumers only need to purchase 1 air conditioning unit to install in both spaces. This can potentially reduce costs compared to buying 2 units. Additionally, the installation process only needs to be carried out once with one air conditioner, thus reducing some expenses by not having to install in both rooms.
The repair and maintenance costs also only need to be carried out on one air conditioning unit. Therefore, considering the purchase and installation costs, it is clear that the method of installing 1 air conditioner for 2 rooms helps users save significantly.
However, according to experts, this installation method has many illogical points. Not only that, if calculated carefully, this installation method does not save costs as many people think.

Waste of electricity consumption
Typically, to cool a specific room space, you only need to install an air conditioner with a capacity corresponding to the area. If you apply the method of installing 1 air conditioner for 2 rooms, you will need an air conditioning unit with a large capacity.
Air conditioners with higher capacity will definitely consume more electricity. Moreover, if you only need cooling in one room, the air conditioner still has to cool both rooms because the two rooms are connected. This results in a considerable waste of electricity.
Poor cooling efficiency
For a small-sized room, one air conditioner with lower capacity is sufficient. However, if used for two rooms with double the area, you will need an air conditioner with higher capacity to cool both rooms simultaneously.

Installing an air conditioner with lower capacity not only fails to cool both rooms adequately but also increases electricity consumption. For example, if the total area of the two rooms is 70m2, you will need an air conditioner with a capacity of 18,000BTU. However, the cost of one air conditioner with a capacity of 18,000BTU is higher than that of two air conditioners with a capacity of 9,000BTU each. If you choose to use a machine with a lower capacity of about 12,000BTU or 9,000BTU to save money, it will cause the device to operate below the designed capacity, thereby wasting energy and providing insufficient cooling.
High expenses
To be able to install an air conditioner with high capacity for two rooms, the cost of purchasing the equipment will also be higher. For example, an air conditioner of 9000BTU costs between 5 million and 10 million VND. But if you want to install one unit for two rooms, you will need a minimum capacity unit of 18000BTU, which costs between 10 million and 25 million VND.

To install 1 air conditioner for 2 rooms, you also need to design the installation location, drill walls, and the installation process is more difficult than usual. Therefore, the cost of installing 1 air conditioner for 2 rooms is quite expensive and time-consuming. In addition, installing 1 air conditioner for 2 rooms causes significant aesthetic loss to the space because you will have to demolish some walls to meet the installation requirements. Therefore, this installation method is considered 'little benefit, much harm' and should not be applied.
So, should you install 1 air conditioner for two rooms or not?
Thus, according to the analysis above, installing 1 air conditioner for 2 rooms not only does not help your family save money but also causes more waste. The costs of purchasing equipment and expensive installation costs, especially high electricity consumption despite lower cooling efficiency.