Step 1: Calculate the Right Size
Use our BTU calculator to determine the right capacity. Wrong sizing is the #1 mistake in AC purchasing.
Quick Formula
Room size (sq ft) × 25 = Base BTU, then adjust for factors like sunlight, ceiling height, and insulation.
Step 2: Choose AC Type
Window AC
- Best for: Single rooms, rentals, budget conscious
- Cost: $200-400
- Installation: DIY friendly
Split AC
- Best for: Permanent homes, aesthetics matter, bedrooms
- Cost: $400-800+
Installation: Professional required
Step 3: Select Efficiency
3-star ACs offer decent efficiency. 5-star ACs cost more but save money within 2-3 years through lower bills.
Step 4: Decide on Features
Essential Features
- Adjustable thermostat
- Timer function
- Remote control
- Auto mode
Premium Features
- Smart WiFi connectivity
- AI temperature control
- Sleep mode
- Air purification filters
- Jet mode (fast cooling)
Step 5: Compare Brands
Top brands (LG, Samsung, Daikin, Carrier, Hitachi) offer better warranty and service. Don't compromise on quality for savings.
Step 6: Budget Considerations
Total Cost of Ownership
- Unit cost (initial investment)
- Installation cost
- Maintenance costs (annual service)
- Electricity bills (monthly running cost)
- Repair costs (if needed)
Step 7: Warranty and Service
Verify warranty terms: 1-year comprehensive, 5-10 year compressor. Check service center availability in your area.
Step 8: Installation Requirements
Window ACs: 30 minutes DIY. Split ACs: Professional installation (2-4 hours, includes vacuum and charging).
Buying Checklist
- ✓ Room size measured and BTU calculated
- ✓ AC type (window/split) decided
- ✓ Efficiency rating (3/5 stars) selected
- ✓ Essential features confirmed
- ✓ Brand and model selected
- ✓ Warranty terms verified
- ✓ Service center location checked
- ✓ Budget allocated for installation
- ✓ Annual maintenance budget included
Where to Buy
Online: Amazon, Flipkart (often cheaper). Offline: Brand outlets (better service), electrical stores (installation support).
Timing
Buy before summer (May-June) for better deals and faster delivery. Avoid buying during peak summer when prices are high.
Conclusion
Take time with your decision. The perfect AC balances capacity, efficiency, features, and budget for your specific needs.