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AC Installation Mistakes to Avoid in Dubai Homes

Updated: Feb 10

A professional HVAC technician carefully installing an AC

Dubai, known for its luxury and innovation, also experiences extreme temperatures that require air conditioning to remain comfortable. Unfortunately, installing an AC system in such an arid climate presents unique challenges - homeowners can easily fall prey to installation errors that lead to inefficiency, increased costs, and diminished comfort levels. 

This comprehensive guide highlights key mistakes to Avoid in AC Installation 

1. Improper Sizing Selection:

Selecting an AC unit of appropriate size is crucial, as its size directly impacts efficiency, comfort, and energy usage.

Different types of AC
  • Small: An undersized unit will need help to cool a space, leading to excessive operation effectively, higher energy bills, and inadequate cooling results.

  • Large: An overly large unit may fail to remove humidity effectively and create an uncomfortably humid atmosphere.

Professional sizing must be emphasized. This process entails calculating the cooling load according to factors like room dimensions, window sizes, and exposure to sunlight - with accuracy ensures your unit runs at peak performance while still conserving energy consumption and providing comfort while saving on costs.

2. Overlooking Ventilation :

Proper Ventilation is crucial in maintaining a healthy indoor atmosphere and increasing AC efficiency.

  • Air Quality: Lack of Ventilation can trap pollutants and moisture, leading to health concerns and reducing indoor air quality.

  • Efficiency Loss: Poor ventilation forces air conditioners to overwork, increasing energy costs and shortening their lifespan.

Modern homes in Dubai prioritize sealing against heat, so ensuring the AC and ventilation systems work together is paramount for maintaining an ideal and comfortable living space. Achieving this harmony can prevent the buildup of stale air while keeping an ideal indoor temperature balanced throughout.

3. Ignoring Ductwork

Ductwork is the pathway through which cool air travels; paying attention to it could severely diminish AC performance.

  • Energy Loss: Leakage in your Ductwork leads to lost cool air escaping before reaching its intended destination, forcing the system to work harder than intended.

  • Uneven Cooling: Faulty ducts may lead to insufficient needing more

Regular Maintenance of Ductwork, including sealing leaks and providing sufficient insulation, is necessary to ensure cool air can effectively circulate throughout your home, increasing comfort while decreasing energy waste.

4. Skimping on Professional AC Installation 

Professional installation is key to optimizing AC performance.

  • Experience: Qualified technicians possess all the skills and knowledge needed to install systems properly.

  • Compliance: They also ensure adherence to local regulations and safety standards.

Professional AC unit installation is not only recommended in Dubai's complex architectural landscape of traditional villas and high-rise apartments but is considered essential. Due to the unique characteristics of each building structure, professional installation ensures maximum efficiency and safety of each AC unit installed for optimal performance and safety.

5. Neglecting Maintenance 

clean and dirty filters of AC

Regular AC system maintenance is paramount to extend its lifespan and ensure optimal functioning.

  • Filter Maintenance: Clean filters ensure smooth airflow and optimal indoor air quality.

  • Refrigerator Refrigerant Checks: Adequate refrigerant levels are essential to providing maximum cooling performance.

Dubai's dusty environment presents the potential for AC systems that are neglected to rapidly decline performance, leading to expensive repair bills over time. Your AC will operate efficiently year-round by scheduling regular check-ups and repairs as soon as minor issues arise.

6. Improper Placement

The placement of your AC unit has a tremendous effect on its effectiveness and longevity.

  • Avoid Sunlight: Outdoor units exposed directly to sunlight require more work and will ultimately decrease efficiency, making the unit less effective overall.

  • Make Sure There Is Adequate Ventilation: Adequate Ventilation can prevent overheating and increase performance, thus protecting the unit and keeping temperatures down.

Please choose a location for your outdoor unit that provides shade and Ventilation to optimize its efficiency and ensure long-term effectiveness. Finding such an area in Dubai's urban landscape may prove challenging - yet essential in maintaining its performance over time.

7. Neglecting to Place the Thermostat Properly 

Accurate temperature regulation depends upon having an effective thermostat located appropriately. Hence, its proper placement should be remembered!

  • Place Away From Heat Sources: Proximity to heat sources can lead to false readings that force an air conditioning unit to work harder than necessary.

  • Centralized Position: Placing your thermostat centrally will give a more accurate representation of temperature throughout your home or workplace.

Positioning the thermostat away from direct sunlight, drafts, and appliances that emit heat will help ensure it accurately measures indoor temperatures for more effective AC operation and improved comfort.

8. Neglect of Local Climate:

  • Humidity Control: When dealing with high humidity levels, an air conditioning unit with effective humidity control is essential.

  • High-Temperature Tolerance: An appliance must function effectively under extreme heat conditions.

AC units designed specifically for hot and humid climates like Dubai are more effective and energy-efficient, keeping your home cool during even the peak summer months. They ensure you remain comfortable even while living there!

9. Underestimating Insulation Needs 

Insulation is an integral component of AC efficiency. Therefore, any miscalculation in its needs could significantly compromise AC performance.

  • Retain Cool Air: Insulation is integral in keeping cool air inside, helping reduce strain on AC units and keeping you feeling cooler for longer.

  • Reduce Energy Costs: Insulated homes use less energy for cooling purposes, leading to reduced utility bills and reduced utility payments.

Insulation is essential in Dubai's harsh climate to keep out heat and cool interior temperatures consistent. Insulating not only the walls and roof but also windows and doors is vital in creating an airtight space that maintains consistent temperatures.

10. Failing to Consider Energy Efficiency Ratings 

Energy efficient AC system

Energy efficiency should always be top of mind when purchasing ACs.

  • Long-Term Savings: High-efficiency ratings can lead to significant cost savings over time.

  • Environmental Benefits: Energy-efficient units reduce your carbon footprint, aligning with sustainable living.

Given Dubai's year-round heatwave, investing in an AC unit with an Energy Efficiency Ratio (EER) or Seasonal Energy Efficiency Ratio (SEER) of at least ten is wise. This will ensure your home remains comfortable without incurring disproportionate energy costs. Frequently Asked Questions about AC Installation: 1. What are some common mistakes when purchasing air conditioning units in Dubai?

One common oversight in selecting an AC unit in Dubai can be selecting an inappropriately sized model, overlooking energy efficiency measures, or neglecting to take account of Dubai's climate needs when making this selection. Inefficiencies may arise as a result of these oversights.

2. How important is insulation when installing ACs in Dubai?

Proper insulation is crucial in Dubai to combat extreme temperatures and minimize energy loss, with improper insulation leading to higher energy bills and decreased AC efficiency. Inadequate insulation could even result in higher electricity bills as well.

3. What factors should be taken into account for AC unit placement in a Dubai home?

To maximize cooling efficiency and air circulation within your home, avoid direct sunlight while providing enough ventilation around the AC unit's placement. Doing this ensures peak cooling performance as well as air circulation within it.


Khalifa Al Shaer advises that AC installation in Dubai's climate requires avoiding common mistakes for optimal performance, including proper sizing, expert installation, and regular Maintenance of an efficient AC system - signifying smart living in this vibrant city.

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