Quick Comparison
| Feature | Window AC | Split AC |
|---|---|---|
| Cost | $200-400 | $400-800 |
| Installation | DIY possible | Professional needed |
| Noise | 30-45 dB | 22-35 dB |
| Space | Blocks window | Compact indoor unit |
| Portability | Portable | Fixed installation |
Window AC Advantages
- Lower cost ($200-400 for decent unit)
- Easy DIY installation
- Portable (can move between windows)
- No wall drilling needed
- Good for apartments with window restriction
Window AC Disadvantages
- Blocks natural light and view
- Louder (30-45 dB)
- Limited cooling range (single room)
- Not suitable for high-rise apartments
- Less aesthetically pleasing
- Can feel drafty
Split AC Advantages
- Quieter operation (22-35 dB)
- Better aesthetics
- No window blockage
- More cooling options (mounted anywhere in room)
- Better temperature control
- Multi-zone cooling possible
Split AC Disadvantages
- Higher cost ($400-800+)
- Needs professional installation
- Requires wall drilling (4-5 inches)
- Less portable
- Installation complexity
Efficiency Comparison
Modern split ACs are typically 5-10% more efficient than window ACs due to better compressor placement and insulation. However, this is offset by split ACs having more accessories and parts.
Installation Requirements
Window AC
- Check window dimensions
- Clean window frame
- Insert AC unit
- Seal gaps with weatherstripping
- Plug into power outlet
- Total time: 30 minutes
Split AC
- Technician decides indoor/outdoor unit placement
- Drill holes in wall (diameter ~2 inches for pipes)
- Install piping and electrical connections
- Vacuum and refrigerant charging
- Total time: 2-4 hours
Best For Window AC
- Single room cooling
- Rental apartments
- Budget-conscious buyers
- Temporary cooling needs
- Areas where wall drilling isn't allowed
Best For Split AC
- Permanent homes
- Aesthetics important
- Quiet operation needed (bedrooms)
- Multiple room cooling
- Modern home design
Long-Term Cost Analysis
While split ACs cost more initially, they last longer (15-20 years vs 8-12 years) and operate more efficiently, making them better long-term investments for permanent residences.
Conclusion
Choose window ACs for rental homes or single-room temporary cooling. Choose split ACs if you own your home and want longevity, quiet operation, and better aesthetics.