Best 24,000 BTU Window Air Conditioners With Heat for Large Spaces
If you need powerful cooling with supplemental heating for large rooms or open layouts, a 24,000 BTU window air conditioner with heat is a practical choice. This guide highlights five models that blend cooling performance with built-in heating, making them suitable for spaces up to roughly 1,500 square feet depending on climate and insulation. Ideal buyers include homeowners with seasonal temperature swings, apartment dwellers upgrading from smaller units, and offices needing year‑round climate control. The selections emphasize reliability, ease of use, and practical features like remote controls, auto restart, and multi‑mode operation.
Summary of selected products:
| Product | Cooling Capacity | Supplemental Heat | Smart/Remote Features | Best For |
|---|---|---|---|---|
| Keystone 23,200 BTU Window AC with 16,000 BTU Supplemental Heat | 23,200 BTU cooling | 16,000 BTU supplemental heat | Smart remote with room temperature feedback | Large living areas and basements; spaces up to 1,500 sq ft |
| LG 23,000 BTU Window AC with 9,200/11,200 BTU supplemental heat | 23,000 BTU cooling | 9,200–11,200 BTU supplemental heat | Auto restart after power loss | Bedrooms and living rooms needing quiet operation |
| LG 24,500 BTU Window AC (230V) | 24,500 BTU cooling | Noted as cooling-focused with other controls | Electronic controls with remote | Large rooms requiring high cooling capacity |
| Friedrich CEW24B33B Chill Premier Smart AC | 24,000 BTU cooling | 10,600 BTU heating | WiFi and mobile control | Smart homes seeking integrated app control |
| Seasons 25,000 BTU Window AC With Heat | 25,000 BTU cooling | Integrated heating | Programmable timer and sleep modes | Year‑round comfort for large rooms and offices |
Keystone 23,200 BTU Window AC With Supplemental Heat
Keystone combines robust cooling with a sizable 16,000 BTU supplemental heat for spaces up to 1,500 sq ft. The unit supports cooling, dehumidification, and fan circulation in one compact window package. The smart remote tracks room temperature and sends periodic signals to maintain accurate comfort levels, which helps minimize energy use while maintaining steady temperatures. Best for: large living rooms or open floor plans where occasional cold evenings require added warmth without turning on a separate heater. Limitation: supplemental heat is not a primary heat source and is intended for temperatures between 23 and 76 degrees Fahrenheit, so extremely cold days may require an alternative heating solution.
LG 23,000 BTU Window AC With Supplemental Heat
This LG model focuses on quiet operation with low noise performance, delivering cooling at levels as low as 62dB in quiet mode. The supplemental heat option adds warmth on cooler days, and Auto Restart restores the previous settings after power interruptions. Best for: bedrooms or home offices where minimal noise is a priority and year‑round climate control is needed. Limitation: the heating capacity is part of a supplemental system, so extremely cold days may require a separate heating solution for full comfort.
LG 24,500 BTU Window AC With Electronic Controls
This LG unit delivers high cooling capacity for large spaces and offers user-friendly electronic controls with a remote for convenient operation. Auto Restart ensures the unit returns to its prior state after power outages. Best for: large living rooms or conference areas where strong cooling performance is needed alongside straightforward remote operation. Limitation: the data emphasizes cooling-focused features; verify heating options if year‑round heat is a requirement.
Friedrich CEW24B33B Chill Premier Smart Window Unit
Friedrich brings smart control with WiFi and mobile app compatibility, offering 24,000 BTU cooling and a 10,600 BTU heating capacity. This model is suited for smart homes requiring integrated control without a separate thermostat. Best for: tech‑savvy users who want remote operation and scheduling. Limitation: heating capacity is lower than some other 24k units, so very cold days may benefit from additional heating sources.
Seasons 25,000 BTU Window AC With Heat
Seasons offers a 25,000 BTU cooling capacity with integrated heating, multiple fan speeds, and a programmable 24-hour timer. In addition to energy‑saving and sleep modes, its easy‑clean filter helps reduce maintenance tasks. Best for: large offices or living areas that need flexible cooling and heating schedules. Limitation: the feature list emphasizes convenience and modes; verify the heating output for extreme cold conditions if year‑round warmth is essential.
Buying Guide: How to Choose a 24,000 BTU Window AC With Heat
What to consider when selecting a high‑capacity window unit with heat:
- Heating capacity versus space: Larger rooms may require higher heating output. Compare both cooling and supplemental heating BTUs.
- Window fit and installation: Check window dimensions, electrical requirements (voltage), and whether the unit is designed for retrofit or new installation.
- Noise level: If the unit will be in a bedroom or study, look for models with lower dB ratings in cooling and heating modes.
- Energy efficiency: Look for energy‑saving modes, programmable timers, and auto restart features to minimize energy use during sleep or work hours.
- Smart and remote features: Remote temperature sensing, app control, and scheduling can simplify daily use and improve comfort consistency.
- Maintenance: Easy‑to‑clean filters and accessible drainage or dehumidification modes reduce ongoing upkeep.
- Warranty and service accessibility: Consider brands with reliable support and service networks in your area.
Frequently Asked Questions
- Do these units provide heat reliably in cold weather?
Most units offer supplemental heating rather than primary heat. They work best in moderate to cool temperatures; for very cold days, a dedicated heater may be necessary. - Can I install a 24,000 BTU window AC myself?
Installation depends on window size and electrical capacity. Follow the manufacturer’s guidelines or have a licensed technician install for safety and performance. - Will a 24,000 BTU unit cool efficiently in a 1,500 sq ft space?
Yes, in many cases, especially with good insulation and moderate climate. Actual effectiveness depends on room layout, sun exposure, and airflow. - Is Auto Restart important?
Auto Restart helps the unit resume settings after a power outage, which is convenient for maintaining climate control without manual re‑setup. - Are these units easy to maintain?
Most models feature accessible filters and straightforward control interfaces, but some may require professional servicing for advanced components. - What is the best choice for a quiet bedroom unit?
Look for the lowest dB rating in cooling mode and a model with a dedicated quiet operation setting, such as the LG option with low noise performance.