Trying to cool a 700-square-foot space effectively can be challenging without the right air conditioner. Whether it’s a large bedroom, studio apartment, or office, you need an AC that balances power, efficiency, and convenience. In this guide, we’ll explore the best air conditioners for 700 square feet and walk you through exactly what to look for in your next cooling system.
How Many BTUs Do You Need for 700 Square Feet?
To cool a 700 sq ft area, you’ll need an air conditioner with approximately 14,000–18,000 BTUs. This ensures adequate cooling without overworking the unit or wasting energy. The type of air conditioner—portable, window, or mini split—also plays a role in overall efficiency and cooling distribution.
BTU Recommendations:
| Room Size (sq ft) | Recommended BTUs |
|---|---|
| 600–700 | 14,000–18,000 |
Top Air Conditioners for 700 Square Feet
1. Midea U Inverter Window Air Conditioner – Best Energy Efficiency
BTUs: 14,000
Type: U-shaped window AC
Coverage: Up to 700 sq ft
This innovative U-shaped window unit is not only whisper quiet but also exceptionally energy efficient. With its inverter compressor and Energy Star certification, it uses nearly 35% less energy than traditional models. The unique design allows you to open your window even while the AC is installed—a big win for ventilation lovers.
Features:
- Wi-Fi enabled with smart app control
- Ultra-quiet operation (as low as 42 dB)
- DC inverter compressor for consistent temperature
Pros:
- Best-in-class energy savings
- Quiet enough for bedrooms
- Sleek, modern look
Cons:
- Requires installation on a compatible window
- Heavier than traditional window units
2. Whynter ARC-14S Portable Air Conditioner – Best Portable Option
BTUs: 14,000 (ASHRAE) / 9,500 (SACC)
Type: Dual-hose portable AC
Coverage: Up to 500–700 sq ft
The Whynter ARC-14S is one of the best-performing portable air conditioners for medium-to-large rooms. Thanks to its dual-hose design, it cools more efficiently and faster than single-hose models. It’s ideal if you want to avoid permanent installation and still get powerful results.
Features:
- Three modes: cool, fan, and dehumidify
- Eco-friendly R-32 refrigerant
- Includes washable pre-filter and carbon air filter
Pros:
- Great for renters or flexible placement
- Strong airflow and rapid cooling
- Includes remote and window kit
Cons:
- Bulky and heavy
- Louder than window or split units
3. Pioneer WYS012G-19 Mini Split – Best for Quiet, Permanent Cooling
BTUs: 12,000
Type: Ductless mini split
Coverage: 500–750 sq ft
If you’re ready for a permanent solution and want something whisper-quiet, the Pioneer WYS012G-19 is a top-tier ductless mini split. It offers both heating and cooling, making it an excellent year-round investment. While installation is more involved, the long-term benefits in energy efficiency and noise control are unmatched.
Features:
- High SEER rating (up to 19)
- Wi-Fi module optional for smart control
- Variable speed inverter compressor
Pros:
- Silent operation
- Excellent temperature stability
- Long-term energy savings
Cons:
- Requires professional installation
- Higher upfront cost
4. Frigidaire FHWW153WB1 – Best Standard Window Unit
BTUs: 15,100
Type: Window AC
Coverage: Up to 700 sq ft
This powerful Frigidaire model offers traditional window AC cooling with smart connectivity and a programmable thermostat. It’s a no-fuss, high-output solution for cooling large bedrooms or living rooms. Plus, it features Energy Star certification and a low-energy sleep mode.
Features:
- Wi-Fi control via Frigidaire app
- Energy Saver and Sleep modes
- Multi-directional airflow
Pros:
- Reliable performance in hot climates
- Smart home compatible
- Great for larger single-room setups
Cons:
- Window-mount only
- Requires strong support due to weight
5. LG LP1419IVSM Portable AC – Best Smart Inverter Model
BTUs: 14,000 (ASHRAE) / 10,000 (SACC)
Type: Single-hose portable AC
Coverage: Up to 700 sq ft
LG’s inverter portable AC combines smart tech and energy efficiency into a sleek unit. The inverter motor reduces energy use while maintaining a more consistent room temperature. With Wi-Fi, you can control this unit from anywhere—perfect for managing your environment remotely.
Features:
- Dual inverter compressor for energy savings
- Wi-Fi, Alexa, and Google Assistant compatible
- Quiet operation (under 53 dB)
Pros:
- Smart, efficient cooling
- Portable with smooth-rolling wheels
- Modern, minimalist design
Cons:
- Single hose slightly reduces efficiency
- Pricey compared to other portable models
Key Factors to Consider for a 700 Sq Ft AC
1. Type of Air Conditioner
- Window ACs: Easy to install, energy-efficient
- Portable ACs: Flexible but less efficient
- Mini Splits: Quiet, efficient, and permanent
2. BTU Capacity
Ensure the BTU rating matches your room size. Too low and it won’t cool properly. Too high and it may short-cycle, reducing efficiency and dehumidification.
3. Smart Features
Smart ACs with Wi-Fi let you control temperature remotely and integrate with home automation systems. This is great for energy savings and convenience.
4. Noise Levels
Choose models under 55 decibels for bedrooms or shared living areas. Inverter technology and mini splits are usually the quietest.
5. Installation Requirements
Portable and window units are generally DIY-friendly. Mini splits require professional installation but offer the best performance long-term.
Conclusion
Cooling a 700-square-foot space takes more than just picking a high-BTU unit—you need the right balance of power, efficiency, and design. If you’re looking for all-around excellence, the Midea U Inverter is unbeatable for its energy savings and quiet operation. Prefer flexibility? The Whynter ARC-14S or LG inverter portable models offer solid alternatives. For a permanent solution, the Pioneer mini split is a whisper-quiet powerhouse.
Make your comfort a priority this season. Choose the air conditioner that fits your space and lifestyle, and enjoy cool, efficient air all year round.