Discover whether it’s better to have an undersized or oversized aircon. Learn the pros, cons, and why the right air conditioner size saves energy, improves comfort, and extends unit life.
Why Aircon Size Matters
The “size” of an aircon refers to its cooling power, measured in kilowatts (kW) or British Thermal Units (BTU). In general, the correct size will cool your room quickly, maintain a steady temperature, and save on electricity costs. However, an aircon that is too small or too large can cause issues that affect both comfort and performance.
The Problems with an Undersized Aircon
First of all, an undersized air conditioner works harder than it should. It runs longer and struggles to reach the set temperature. As a result, your electricity bill may rise. In addition, your room may still feel humid and uncomfortable. Furthermore, the extra strain can wear out the compressor and other parts faster.
The Problems with an Oversized Aircon
On the other hand, an oversized aircon cools the room too quickly. While that may sound ideal, it often leads to “short cycling,” where the unit turns on and off too often. Consequently, this wastes energy, increases wear and tear, and does not remove enough humidity from the air. For example, your room may feel cold but damp.
Which Is Worse?
If you must choose, an oversized aircon may seem better than one that’s too small in the short term. However, both are bad options. Small units fail to cool effectively, while large units create uneven cooling and moisture problems.
The Best Choice: Right-Sized Aircon
Ultimately, the best aircon size is the one that matches your room’s cooling requirements. This is why it’s smart to get a professional aircon technician to measure your space and recommend the correct unit size. By doing so, you can enjoy:
Steady, comfortable cooling
Lower electricity bills
Longer lifespan for your aircon
In conclusion, undersized or oversized — both can hurt your comfort and wallet. Finally, the smartest choice is a right-sized aircon designed for your specific room size and usage.
📞 Need help finding the perfect aircon for your home? Contact Lion City Air Conditioner Services at +65 8818 5781 or visit lioncityaircon.sg today for expert sizing and installation advice.
