Energy Efficient Room Air Conditioners EMergyKool-Dubai

Maintenance Companies in Dubai

If you only need to cool 1–3 rooms in your home, a room air conditioner may be your most economical choice. Because you are only cooling part of your home, energy cost can be controlled. To optimize the performance of your room air conditioner, select an energy efficient model that is properly sized for the room you are cooling. EER — The Energy Efficiency Ratio is used to compare the efficiency of individual room air conditioners. It is the measure of the number of BTU per hour of cooling provided for each watt of electricity used. Room air conditioners typically provide from 5000 Btu/hr to 18,000 Btu/hr. The average EERs of older units from the 1970’s is about 5. Newer units manufactured after January 1, 1990 must have an EER greater than 8. The best room air conditioners on the market have EERs of 11 or more.

Simple Steps to Improving Duct Performance

Because ducts are often concealed in walls, ceilings, attics, and basements, repairing them can be difficult. But there are things that you can do to improve duct performance in your house. Start by sealing leaks using mastic sealant or metal (foil) tape and insulating all the ducts that you can access such as those in the attic, crawlspace, basement, or garage. Never use ‘duct tape,’ as it is not long-lasting. Also make sure that the connections at vents and registers are well-sealed where they meet the floors, walls, and ceiling. These are common locations to find leaks and disconnected ductwork.


Cooling towers are usually described by their tons of cooling capacity. The cooling capacity indicates the rate at which the cooling tower can transfer heat. One ton of cooling is equal to the removal of 12,000 BTUs (British thermal units) per hour from water. 9 Cooling tower capacities at commercial or industrial facilities may range from as few as 50 tons to 1,000 tons or more. Larger facilities may be equipped with multiple cooling towers.


Not all cooling towers operate at full capacity year-round. Therefore, it may be necessary to determine the utilization profile of your system. This involves identifying how much of your system’s total cooling capacity is utilized and how often to arrive at an annual number of cooling ton-hours.

Equipment Sizing

For central air conditioning systems, your contractor should calculate the cooling load of your home. This will make sure you are selecting a system that meets you peak cooling needs without oversizing the equipment. Oversized equipment is a common problem that can lead to poor performance, and early equipment failure. Check to see that they are using sizing guidelines such as the Air Conditioning Contractors of EMergyKool.

Data analysis on cooling tower water usage and its relation with cooling degree days was performed. Central cooling tower and satellite cooling tower’s monthly make-up and blowdown levels are recorded in Utility Plant’s monthly reports. The reports show that the cooling water make-up and blowdown levels are low during winter and increase during the summer.

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