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Why is it so Important to have the Right Size Air Conditioner Unit?

Central Air Conditioner Central Air Conditioner

There are several facets of a central air conditioner when it comes to its impact on efficiency and more importantly, the size of the unit. The type of insulation you have in place and the height of the ceiling can also plays an integral part to the extent of how your home is cooled.

Technical Ranting

Many HVAC technicians often tend to go off on technical ranting if you were to ask the question: “Why is it so important to have the right size air conditioner unit?” They may want to explain R values and load calculations, which you can understand is the precise details that they received in training. However, most homeowners and business owner will want to hear the explanation in layman terms instead of the technicalities.

Size Matters

It is safe to say that the size of your air conditioner does matter. Bigger does not mean that it will be better. This has always been the common misconception by many outside of the HVAC field. It is not conventional wisdom either to think that if a 3 ton A/C unit works well, the 4 ton A/C unit could do the same. Of course, this concept was on the basis of the older central A/C units that were used in the 1980s. These air conditioners used up a lot of energy, even though, they had the capacity to cool a large arena in fifteen minutes. One thing to remember is that during those years, electricity was cheaper than it is today. In addition, there was minimal insulation at the time too.

Energy Efficiency

Today, there is a heavy reliance on energy efficiency in the modern central AC units, which operate in cycles as it slowly and steadily lowers the temperature in the home. It is no longer necessary to rapidly run your air conditioner in cycles. If you purchase an air conditioning system that is overly big for the house, then it is going to operate in the same efficiency as did older systems in the 1980s. It will quickly turn on and cool the house at the same space and then it will shut off. Yes, the house will still be cool, but soon after, heat will infiltrate the house because the air conditioner was not able to finish the full cycle that it was specifically designed for. For that reason, you would have to turn it on again, which is what will increase your electric bill.

Smaller A/C

If the AC unit is too small, then it will constantly run as it tries to get caught up with where it should actually be. Again, you will have a cool house, but not to the capacity that your AC unit was meant to cool the entire home.  More importantly, it will be more difficult to cool the whole house and your energy efficiency will be reduced.

Conclusion

With the appropriate sized air conditioner, you can guarantee that the entire cycle will run, ultimately cooling your house and improving efficiency. In the summer months, the right central air conditioner unit size is extra important. Speak to your local HVAC contractor to find out which size would best suit your home or business.

Image credit: https://www.flickr.com/photos/62889725@N08/16216429719/

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