Looking to cool a very large room or open-concept area? If you’re sizing up for a 24,000 BTU window unit, you’re targeting spaces around 1,200–1,500 square feet—or even larger in mild climates. These high-capacity units usually require a 230 V outlet, professional installation, and some prep—but they pay off by delivering powerful, efficient cooling that central HVAC or smaller units can’t match.
Do You Really Need 24,000 BTUs?
Before jumping in, confirm your needs:
- Large open spaces, high ceilings, or sunlit rooms
- >1,200 sq ft coverage to achieve effective cooling
- 230 V dedicated circuit available
Otherwise, consider a 18,000–22,000 BTU smart inverter model—those may be a better fit for many rooms and are easier to install.
Top 24,000 BTU Window Air Conditioners
1. LG Dual‑Inverter Smart Window AC – Top Pick
This unit, available in 23,500 BTU (~24 k), leads the pack thanks to its inverter compressor, sub‑60 dB noise levels, and Wi‑Fi smart control. According to the Strategist (NYMag), it quietly cools up to 1,400 sq ft and is more reliable than many cheaper models :contentReference[oaicite:1]{index=1}.
Pros:
- Quiet, efficient inverter tech
- Smart control via ThinQ + Alexa/Google
- Long‑term reliability from LG’s R&D :contentReference[oaicite:2]{index=2}
Cons:
- Heavy (110 + lb)—professional install required
- Blocks window access while mounted
2. Frigidaire 24,000 BTU Inverter Window AC
An ENERGY STAR rated inverter unit with 6‑way airflow and a super‑quiet 48 dB low speed. Plus, it supports Wi‑Fi via the Frigidaire app, making remote control a breeze :contentReference[oaicite:3]{index=3}.
Pros:
- Very quiet, even on low
- Energy efficient and smart-capable
- Customizable airflow patterns
Cons:
- Expensive—typically $700+
- 230 V wiring and sizing work needed
3. GE 24,000 BTU Smart Heat/Cool AC
This GE model offers cooling plus heating and supports 23,700 BTU. It’s smart-enabled via SmartHQ and is designed for rooms up to 1,500 sq ft :contentReference[oaicite:4]{index=4}.
Pros:
- All‑season comfort—cooling and heating
- Smart app control
- Eco mode for energy savings
Cons:
- No inverter—higher running noise
- Requires 230 V circuit and support bracket
4. Whirlpool 24,000 BTU Extra‑Large AC
For a non‑inverter option, Whirlpool’s model delivers strong performance and efficiency. The Spruce notes its power, quiet operation, and ease-of-use make it a solid large-room pick :contentReference[oaicite:5]{index=5}.
Pros:
- Proven reliability and low noise
- Affordable compared to inverter models
Cons:
- Non-inverter—can be noisier cycling
- Fewer smart features
5. Keystone 24,000 BTU Inverter Window AC
Keystone’s inverter option is a budget-friendlier way to get smart, energy-efficient cooling for large spaces. It covers up to 1,500 sq ft and delivers efficiency without paying LG/Frigidaire prices :contentReference[oaicite:6]{index=6}.
Pros:
- Inverter compression—energy savings and quieter cycles
- Cost-effective for 24 k class
Cons:
- Basic remote and no app control
- Installation still hefty
Key Buying Considerations
1. Power & Installation Requirements
These all need a 230 V dedicated line and support bracket. Units weigh 80–120 lb and require secure mounting and proper extrusion sealing.
2. Inverter vs Non-Inverter
- Inverter models (LG, Frigidaire, Keystone): quieter, more efficient, better comfort
- Non-inverter models (Whirlpool, GE): cheaper upfront, louder cycling
3. Noise Level
Inverter units run 45–60 dB—similar to a quiet conversation. Non-inverters can reach 60–70 dB, which is noticeable.
4. Smart Features
LG and Frigidaire offer deep smart integration. GE and Whirlpool offer smart remotes. Keystone focuses on basic remote control.
5. Heating Capability
Only the GE unit offers heat—great for year-round use; others are cooling-only.
Final Recommendation
**Best overall:** LG Dual‑Inverter Smart Window AC (23,500 BTU)** – top performance, inverter efficiency, and quiet operation up to 1,400 sq ft :contentReference[oaicite:7]{index=7}.
**Runner-up:** Frigidaire 24,000 BTU Inverter AC** – ultra-quiet, smart-enabled, and energy-efficient for whole-room cooling.
**Best value inverter:** Keystone 24,000 BTU** – budget-friendly inverter performance for large spaces.
**Non‑inverter simplicity:** Whirlpool or GE—effective and reliable without inverter tech. Go GE if you want year-round heating.
Conclusion
If you need the full 24,000 BTU punch and want modern comfort, go with the LG or Frigidaire inverter models for efficiency and convenience—even if they cost more and need careful install work. Want heat in winter? Choose the GE model. Budget-conscious? Keystone gives inverter benefits at a lower price. Whatever your pick, you’re getting serious power to combat even the toughest heat.
Upgrade your space—with big-cooling power, quiet efficiency, and smart control. Your comfort zone just got bigger.
::contentReference[oaicite:8]{index=8}