Choosing the right air conditioner for a 12×12 room (144 sq. ft.) can be tricky. Should you go for a window AC or a split AC? Both have pros and cons in terms of cooling efficiency, installation, energy consumption, and cost.
This detailed guide compares window AC vs. split AC for a 12×12 room, helping you make the best decision based on performance, price, maintenance, and space requirements.
Key Differences: Window AC vs Split AC
Before diving deep, here’s a quick comparison table:
| Feature | Window AC | Split AC |
|---|---|---|
| Installation | ₹20,000–₹30,000 | Requires indoor & outdoor unit |
| Cooling Efficiency | Good for small rooms | Better airflow & cooling |
| Noise Level | Noisier (compressor inside) | Quieter (compressor outside) |
| Energy Efficiency (BEE Rating) | Usually 3-star | 5-star models available |
| Price (1.5 Ton for 12×12 Room) | ₹20,000 – ₹30,000 | ₹30,000–₹50,000 |
| Maintenance | Easier to clean | Requires professional servicing |
| Aesthetics | Bulky, blocks window | Sleek, modern look |
| Best For | Rentals, budget buyers | Homes, long-term use |
1. Cooling Performance for a 12×12 Room
Window AC Cooling
- Best for small to medium-sized rooms (up to 150 sq. ft.).
- Uses a single unit (compressor + blower inside).
- Pros:
- Cools quickly due to direct airflow.
- Cheaper upfront cost.
- Cons:
- Less efficient in extreme heat.
- Can be noisy.
Split AC Cooling
- More efficient for consistent cooling.
- Indoor unit (blower) + outdoor unit (compressor).
- Pros:
- Better airflow distribution.
- Quieter operation.
- Cons:
- Higher initial cost.
- Needs professional installation.
Verdict: If you want better cooling with less noise, a split AC is ideal. For budget-friendly cooling, a window AC works fine.
2. Installation & Space Requirements
Window AC Installation
- Fits into a window frame or a wall cutout.
- No extra space is needed for the outdoor unit.
- Best for:
- Renters (easy to uninstall).
- Homes with limited outdoor space.
Split AC Installation
- Requires two separate units:
- Indoor unit (mounted on a wall).
- Outdoor unit (needs balcony or open space).
- Best for:
- Permanent homes.
- People who prefer a clean, modern look.
Verdict: If you don’t have outdoor space, a window AC is better. For aesthetic appeal and flexibility, go for a split AC.
3. Energy Efficiency & Electricity Bills
- BEE Star Rating matters for long-term savings.
- Split ACs usually have higher energy efficiency (up to 5-star).
- Window ACs mostly come in 3-star variants, consuming more power.
Example (1.5 Ton AC for 12×12 Room):
| AC Type | BEE Rating | Annual Power Consumption | Estimated Yearly Cost (₹8/unit) |
|---|---|---|---|
| Window AC | 3-star | 1200-1400 kWh | ₹7,200–₹8,000 |
| Split AC | 5-star | 900-1000 kWh | ₹7,200 – ₹8,000 |
Verdict: A 5-star split AC saves ₹2,000–₹4,000/year in electricity bills.
4. Noise Levels: Which is Quieter?
- Window AC: Noisier (50–60 dB) because the compressor is inside.
- Split AC: Quieter (30–40 dB) since the compressor is outside.
Best for:
- Light sleepers? → Split AC (less disturbance).
- Don’t mind noise? → The window AC works fine.
5. Maintenance & Durability
| Factor | Window AC | Split AC |
|---|---|---|
| Filter Cleaning | Easy (DIY) | Easy (DIY) |
| Gas Refill | Needed every 2-3 years | Needed every 3-4 years |
| Coil Cleaning | DIY possible | Professional needed |
| Lifespan | 8-10 years | 10-12 years |
Verdict:
- Window ACs are easier to maintain but wear out faster.
- Split ACs last longer but need professional servicing.
6. Price Comparison (1.5 Ton AC for 12×12 Room)
| AC Type | Price Range (₹) |
|---|---|
| Window AC | 30,000–50,000 |
| Split AC | 30,000 – 50,000 |
Verdict:
- Budget pick? → Window AC (cheaper upfront).
- Long-term investment? → Split AC (saves on bills).
Final Recommendation: Which is Best for a 12×12 Room?
Choose a Window AC If
✔ You’re on a tight budget.
✔ You rent and need a portable option.
✔ You don’t mind noise.
Choose a Split AC If
✔ You want quieter, more efficient cooling.
✔ You own your home and prefer a sleek look.
✔ You’re okay with higher upfront cost for long-term savings.
FAQs: Window AC vs Split AC for 12×12 Room
Q1. Which consumes less electricity, a window or a split AC?
- Split AC (especially 5-star) consumes 20–30% less power than a window AC.
Q2. Can I install a split AC myself?
- No, it requires professional installation due to refrigerant handling.
Q3. Is a 1-ton AC enough for a 12×12 room?
- Yes, but a 1.5-ton AC cools faster in hot climates.
Q4. Which lasts longer, a window or a split AC?
- Split ACs (10–12 years) typically last longer than window ACs (8–10 years).
Q5. Does a split AC cool better than a window AC?
- Yes, due to better airflow design and inverter technology in many models.
Conclusion
For a 12×12 room, both window and split ACs work, but your choice depends on:
- Budget → Window AC
- Energy savings & noise → Split AC
If you can afford the higher initial cost, a split AC is the better long-term investment. Otherwise, a window AC is a budget-friendly solution.
Looking to buy? Check the latest models from LG, Daikin, Voltas, and Blue Star for the best performance!