The Complete Guide to Large Window Air Conditioner

Expert HVAC Technician Company Near You!

Fully licensed and experienced professionals serving South Florida communities. Customer service satisfaction GUARANTEE!
Leave us a message or give us a call ☎️ (561) 814-1600

When living in hot climates like those of Orlando, Boca Raton, and Port St. Lucie, having a reliable air conditioner is not just a luxury—it’s a necessity. Large window air conditioners are a popular choice for efficient cooling without the commitment of central air. They’re affordable, easy to install, and versatile. In this post, we’ll explore everything you need to know about large window air conditioners, from selection to maintenance, and provide you with expert insights from The Right Service HVAC, your trusted local service provider.

Selecting the Right Large Window Air Conditioner

Choosing the right air conditioner involves understanding several key aspects, including size, efficiency, and features:


The cooling capacity of an air conditioner is measured in British Thermal Units (BTUs). Generally, you will need approximately 20 BTUs for each square foot of living space. However, several factors might affect this estimate, such as ceiling height, window size, and room exposure to sunlight.


The efficiency of an air conditioner is measured by its Energy Efficiency Ratio (EER). A higher EER rating indicates a more efficient unit. Look for models with an EER of 10 or higher to ensure energy cost savings in the long run.


Modern air conditioners come with a variety of features, such as programmable timers, remote controls, and smart connectivity. Consider which features will enhance your comfort and convenience before making a purchase.

Installation and Maintenance Tips

Installing and maintaining a large window air conditioner can greatly affect its efficiency and longevity:


  • Ensure the window and frame where the unit will be installed are structurally sound.
  • Proper sealing and insulation around the unit can prevent air leaks, which decrease efficiency.


  • Regularly clean or replace the air filters to maintain air quality and prevent strain on the unit.
  • Check the condition of the seals around your air conditioner each season to ensure they’re intact.

Large Window Air Conditioner Specifications

Brand/Model BTU EER Features Price Range
CoolWind CW-12000 12,000 12.0 Remote control, Energy Star certified $$
ArcticBlast AB-15000 15,000 10.5 Programmable timer, Sleep mode $$$
SummerBreeze SB-10000 10,000 11.0 Wi-Fi connectivity, App control $$
FrostKing FK-18000 18,000 9.8 Dehumidifier function, Multi-speed fan $$$
BreezeMaster BM-14000 14,000 11.5 Auto-restart, Energy-efficient operation $$$

These models are suitable for various room sizes and come equipped with features that cater to different needs and preferences.

Frequently Asked Questions

What size air conditioner do I need for my room?

The size of the air conditioner should be determined based on the square footage of the room. For a standard room in Orlando, Boca Raton, or Port St. Lucie, a rule of thumb is 20 BTUs per square foot. Therefore, for a 500 square foot room, a 10,000 BTU air conditioner would typically suffice.

How often should I clean or change the air filter?

To ensure optimal efficiency and air quality, clean or replace the air filter at least once every two months. During periods of high usage, checking and replacing the filter monthly can be beneficial. For more on maintaining air quality, see how often should you change your AC filter.

Can I install a large window air conditioner myself?

Yes, many large window air conditioners are designed for easy DIY installation. However, due to their size and weight, it’s advisable to have assistance. Ensure that the window frame is strong enough to support the unit and that the unit is level so it drains correctly.

What should I do if my air conditioner starts making noise?

Unusual noises from an air conditioner can indicate several issues. Common causes include loose parts, debris in the unit, or deteriorating components. For a detailed understanding of what different sounds mean, see furnace noises and what they mean.


Large window air conditioners are a great solution for cooling specific areas of your home efficiently. By choosing the right model, ensuring proper installation, and maintaining the unit regularly, you can enjoy a cooler environment even in the peak heat of Florida. For residents of Orlando, Boca Raton, and Port St. Lucie, The Right Service HVAC is your go-to provider for all your HVAC needs. From installation to repair and regular maintenance, we ensure your air conditioning systems perform at their best. Contact us today to learn more about our services or schedule an appointment. Explore our AC repair services in Boca Raton for specialized local assistance. Remember, a well-maintained AC unit not only keeps you cool but also saves money by operating efficiently. Let us help you stay comfortable all year round!

Open chat
Can we help you?
Call Now