top of page

How to Select the Best Home Rooftop Air Conditioner in 2024

Writer: Real Estate Investment ViewReal Estate Investment View

Updated: May 1, 2024


This post may contain affiliate links, meaning if you make a purchase via my links, I may earn a commission at no additional cost to you. For more information, please see my disclosure

In 2024, the technology surrounding home cooling systems has advanced, making it essential for homeowners to stay updated on the right options. Choosing the best home rooftop air conditioner is not just about cooling your house but doing so in a way that fits your budget and living space. 


This guide will help you understand the basics, evaluate your needs, and make an informed decision about which rooftop air conditioner is best for your home this year.


Key Takeaways:


  • Technological Advancements in Home Cooling: Home cooling systems have advanced by 2024, requiring homeowners to stay informed about their options. Choosing the best home rooftop air conditioner involves more than just cooling efficiency; it also requires considering factors like budget and living space constraints.

  • Space and Security Benefits of Rooftop Units: Rooftop air conditioners, also known as RTUs, are beneficial for saving ground-level space and reducing indoor noise. Their elevated position reduces exposure to dirt and debris.

  • Energy Efficiency and Smart Features: Modern rooftop air conditioners are equipped with innovative technologies that boost energy efficiency and lower environmental impact. Features like speed compressors, smart thermostats, and eco-friendly refrigerants help homeowners manage energy use better.

  • Installation Considerations and Home Suitability: Rooftop AC units are beneficial for homes with specific architectural constraints like limited exterior wall space, multi-story buildings, or historical preservation needs. Proper installation and regular maintenance are crucial, with a focus on professional assessments, choosing the right contractor, and being aware of installation costs and maintenance.


Rooftop Air Conditioners: Understanding the Basics

Before diving into the specifics of choosing the best home rooftop air conditioner, it's important to understand the basics. These include the different types of rooftop units available, the advantages of installing these systems, and essential terms like BTU and SEER ratings. This will ensure you're well-equipped to evaluate the options and make the best decision for your cooling needs.


Types of Rooftop Air Conditioners: Rooftop units, often abbreviated as RTUs, are used in residential settings for their ability to handle large volumes of air and offer centralized cooling. They are installed on the roof, helping save space at ground level and reducing noise inside the home.


Advantages of Rooftop Units: Besides space-saving and noise reduction, rooftop air conditioners often have a longer lifespan due to the less harsh conditions on the roof, away from dirt and debris. They also provide better security against vandalism or theft.


Key Terms to Know:

  • BTU (British Thermal Unit): This measures the heat amount an air conditioner can remove from a room per hour. More BTUs mean more cooling power, but more energy use.

  • SEER (Seasonal Energy Efficiency Ratio) and EER (Energy Efficiency Ratio): These ratings determine how well an air conditioner uses electricity; the higher the SEER and EER, the more efficient the unit.


Assessing Your Needs

Before choosing an air conditioner, it’s crucial to understand your home’s specific cooling needs. Factors to consider include the size of your home (in square footage), the climate you live in, the quality of your home's insulation, and how much sun exposure your roof gets. You can also use online calculators to estimate the correct BTU rating needed for your home.


Here’s how you can best evaluate your needs:


  1. Calculate the Square Footage of Your Cooling Area: Start by determining the total square footage of the space that needs cooling. Measure the length and width of each room and multiply these figures together to get their area. Sum up the areas of all rooms to find the total square footage. If you plan to cool only specific rooms, only include those in your calculation.

  2. Consider the Climate Zone: Your geographic location affects your cooling requirements. Homes in hotter, more humid climates will require a stronger cooling system than those in cooler, drier areas. Refer to climate zone maps available through the Department of Energy to see where your home fits and adjust your requirements as needed.

  3. Account for Insulation and Building Materials: The quality of your home's insulation impacts how well it retains cool air. Better insulation means your air conditioner will work better. Also, consider the building materials of your home; materials like brick or stone will hold coolness better than wood.

  4. Factor in Window Size and Orientation: Windows can be a significant source of heat due to sunlight penetration. South-facing windows will receive more sunlight and generate more heat. Measure the area of your windows and take note of their orientation to determine how much extra cooling might be needed.

  5. Check Existing Ventilation Systems: Good ventilation helps improve the efficiency of your air conditioner by circulating cool air more. Ensure that your home’s ventilation system is adequate and well-maintained to support the new unit.

  6. Consider Additional Heat Sources: Appliances, electronics, and even occupants add heat to your home. An average person can emit as much heat as a 100 watt light bulb. Consider these internal heat gains in crowded spaces or where heat-generating appliances are in frequent use.

  7. Use an Online BTU Calculator: After gathering all this information, use an online BTU calculator to estimate the appropriate cooling capacity for your home. These calculators provide a more tailored recommendation based on your inputs about square footage, insulation, windows, and other factors.


Which Homes Types Are Rooftop AC Units Best For?

Rooftop air conditioners are often beneficial for certain types of homes, like those with specific architectural features or limitations. 


Here’s why they might be the right choice for homes with unique configurations:


Homes Without Basements

In homes without basements, installing a central air conditioning system can be challenging because of the lack of space to house the larger components like air handlers and furnaces often placed in basements. Rooftop air conditioners consolidate the entire system in one compact unit on the roof, freeing up interior living spaces and eliminating the need for basement storage.


Homes with Limited Exterior Wall Space

For homes that lack sufficient exterior wall space—like those with large windows, extensive architectural features, or close proximity to property lines—a rooftop AC unit can be a smart solution. These conditions make it difficult to place traditional split systems, as these require significant wall space for mounting the external condenser. 


A rooftop system avoids this issue by placing all components out of the way and can also help preserve the aesthetics of the home’s exterior.


Urban Homes

Urban homes in populated areas often face strict regulations about outdoor units, or lack the ground space needed for such installations. Rooftop units are ideal in these environments because they are installed out of sight, which can also help comply with local zoning laws or homeowners association rules concerning external modifications.


Homes with Multiple Stories

In multi-story homes, achieving consistent cooling on all floors can sometimes be a challenge with traditional systems, which might struggle with air distribution. Rooftop air conditioners can provide more uniform air distribution across multiple levels. 


Since cool air descends, placing the cooling system at the highest point in the home can enhance overall cooling efficiency and effectiveness.


Historic Homes

Owners of historic homes often face restrictions on the changes they can make to the building’s facade. Rooftop air conditioners are an excellent option because they do not require alterations to the home's exterior walls. This can preserve the historical integrity of the structure while providing modern comfort.


Modular or Prefabricated Homes

For modular or prefabricated homes, which may not have the structural support necessary for heavy indoor HVAC systems, rooftop units offer a viable alternative. These homes benefit from the rooftop AC systems' self-contained nature, which minimizes the stress on the building's structure.


Energy Efficiency and Cost Savings

Energy efficiency is paramount when selecting a rooftop air conditioner. Look for units with high SEER and EER ratings to ensure lower electricity use and reduced utility bills. Many modern air conditioners come equipped with eco-friendly technologies like programmable thermostats or variable speed motors that further enhance efficiency and control.


Cost vs. Savings: Energy-efficient models might seem more expensive in the beginning, but they can lower your energy bills each month. Consider this as an investment in long-term savings.


Enhancing Energy Efficiency with Smart Technology 

For 2024, rooftop air conditioners are packed with state-of-the-art technologies aimed at maximizing energy efficiency and minimizing environmental impact. These systems incorporate many innovative technologies that optimize cooling operations, improve user control, and support sustainable practices. 


Here are some of the latest features and technologies that you might find in modern rooftop air conditioning units:


  • Variable Speed Compressors: These compressors adjust their operating speed based on the cooling demand, reducing energy consumption and providing precise temperature control.

  • Smart Thermostats: Integrated with advanced algorithms, these thermostats optimize cooling cycles, adapt to user habits, and can be controlled from anywhere, reducing unnecessary energy usage.

  • Eco-Friendly Refrigerants: Newer models are equipped with refrigerants that have lower Global Warming Potential (GWP), such as R-32, enhancing system efficiency and reducing environmental impact.

  • Solar-Ready Units: Some air conditioners are designed to integrate with solar panels, allowing the use of renewable energy sources to power the unit, which cuts down on electricity derived from non-renewable resources.

  • Demand Controlled Ventilation (DCV): By adjusting the amount of fresh air intake based on occupancy, DCV systems ensure optimal air quality without overburdening the cooling system, helping conserve energy.

  • Heat Recovery Systems: These systems reuse waste heat from the air conditioning process for heating purposes, improving overall energy efficiency by utilizing energy that would otherwise be lost.

  • Advanced Diagnostics and Monitoring: Modern rooftop units include sophisticated sensors and monitoring systems that track performance and predict maintenance needs, ensuring the unit operates efficiently at all times.


Comparing Top Rooftop Air Conditioner Brands in 2024

Selecting the right brand for a rooftop air conditioner is critical to ensure long-term satisfaction and efficiency. Among the many options available, brands like Ferguson and Goodman stand out due to their commitment to quality, innovation, and customer service. 


Compare their latest models by examining:


  1. Performance Features: Evaluate how fast the unit can cool your space. Look for models that can achieve your desired temperature without overworking the system. Consider the operating noise of the air conditioner. A quieter unit is important in residential areas or if the AC is near bedrooms or living spaces.

  2. Warranty Offers: Examine the warranty length and what it covers. A longer warranty that covers parts and labor can offer peace of mind and indicate the manufacturer's confidence in their product. Look for special warranty terms that might include free routine check-ups or discounts on parts.

  3. User Reviews and Ratings: Read through customer reviews and ratings on reputable retail websites and forums. Pay attention to common praises or complaints that might indicate recurring issues or strengths. Evaluate reviews regarding the unit’s durability, efficiency, and ease of use.

  4. After-Sales Service: Investigate the brand’s reputation for after-sales service. Effective customer support can enhance your experience if repairs or maintenance are needed. Check if the brand offers available service technicians, 24/7 customer support, and a straightforward process for service claims.

  5. Additional Features and Technologies: Some brands might offer advanced features like Wi-Fi connectivity for app-based control, air quality enhancements, or compatibility with smart home systems. Decide if these additional features align with your needs and if they justify any extra cost.


Installation Requirements and Maintenance

Proper installation and regular maintenance are key to maximizing the efficiency and lifespan of your rooftop air conditioner. Ensure the installation is handled by professionals and consider signing up for a maintenance contract. Regular maintenance includes things like cleaning filters, checking refrigerant levels, and ensuring the system is running as it should. 


What to Expect from The Installation Process

When installing a rooftop air conditioner, homeowners should be aware of several important aspects to ensure the process is smooth and the system functions well. 


Here’s an outline of key points to consider:


Professional Assessment: 

  • Site Inspection: Before installation, a professional should inspect your home to evaluate the roof structure, space availability, and any potential challenges. This includes checking for adequate space for the unit and ensuring the roof can support the weight.

  • Size and Type Determination: Based on the cooling needs and the structure of your home, the technician will help determine the appropriate size and type of the unit.


Choosing the Right Contractor:

  • Certification and Experience: Ensure the contractor is certified, experienced, and knowledgeable about the latest rooftop air conditioner models and installation standards.

  • References and Reviews: Check references and online reviews to gauge previous customers' satisfaction levels with the contractor’s work.


Understanding Installation Costs:

  • Detailed Quotes: Obtain detailed quotes from several contractors to compare costs. The quotes should include all aspects of the installation process, like labor, materials, and any additional equipment needed.

  • Potential Additional Costs: Be aware of potential extra costs like electrical upgrades, roof reinforcement, or ductwork modifications.


Preparation for Installation:

  • Timing: Schedule the installation during mild weather conditions if possible, as extreme temperatures can complicate the installation process.

  • Accessibility: Ensure that the area where the AC unit will be installed is accessible. This may involve clearing pathways or temporarily removing obstacles.


Installation Process:

  • Safety Measures: Installation should adhere to strict safety standards to protect the installation team and your property.

  • System Setup: The process will often involve mounting the unit, setting up electrical connections, and installing ductwork if necessary.

  • Testing: After installation, the system should be tested in detail to ensure it operates as it should.


Post-Installation:

  • Cleanup: Expect the contractor to handle cleanup and disposal of any old equipment or materials.

  • Walkthrough: Request a walkthrough to understand your new system’s operation and maintenance requirements. This should include basic troubleshooting tips and how to change filters.

  • Warranty and Service Information: Ensure you receive all warranty documents and understand how to schedule future maintenance or service calls.


Legal and Compliance Issues:

  • Permits and Regulations: Check local regulations and obtain necessary permits before installation begins. This is important to ensure that the installation complies with local building codes and safety standards.


5 Tips for Maintaining Your Rooftop Air Conditioner 

Maintaining your rooftop air conditioner is essential for ensuring it operates and lasts as long as possible. Regular upkeep enhances performance and prevents unexpected breakdowns and costly repairs. 


Here are five practical tips to help keep your unit performing at its best:


  1. Regular Filter Replacement or Cleaning: Change or clean air filters every one to three months, depending on usage and environmental factors like dust and pet dander. Clean filters improve airflow and enhance the unit’s efficiency and air quality.

  2. Coil Cleaning: Keep the evaporator and condenser coils free of dirt and debris. Dirty coils reduce the system's ability to cool the air and can cause the system to overheat, leading to increased energy costs and potential damage.

  3. Inspect and Clear the Drainage System: Ensure that the drain lines and pans are clear of any blockages. This prevents water from accumulating and causing issues with humidity, as well as potential water damage to the roof.

  4. Scheduled Professional Maintenance: Arrange for a professional HVAC technician to inspect and service your air conditioner at least once a year. They can check refrigerant levels, test for leaks, inspect electrical connections, and ensure all components are functioning.

  5. Check and Secure All Components: Inspect all components of the rooftop unit on a regular basis, including fans, belts, and electrical switches, for signs of wear or damage. Tighten any loose fittings and replace worn parts to prevent future breakdowns and ensure efficient operation.


Conclusion

Selecting the best home rooftop air conditioner involves careful consideration of your specific needs, energy efficiency, and the quality of available brands. By understanding the basics and comparing your options, you can ensure that your choice provides effective cooling and adds value through energy savings.

Commentaires


bottom of page