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When replacing the outdoor unit of an air conditioner, should the indoor unit also be replaced?

When replacing the outdoor unit of an air conditioner, should the indoor unit also be replaced?

We're glad you asked!

The answer is likely, Yes, and here are the reasons why:


Matched System Design

All air conditioner units are specifically designed to work with matched indoor units for optimum efficiency and performance. The result of this matched system is a coordinated, top performance team that ensures the dependability and high efficiency today's applications require. Air conditioner outdoor units may "work" with indoor units other than those for which they have specifically designedS however; the result is a definite compromise in system performance.


Design Advances

Through the years indoor blower coils and units have undergone numerous design advances ­ especially in the areas of air handling performance, filtering efficiency and operating sound levels. A new outdoor unit will also include the latest design advances.


Higher Cooler Efficiency

The cooling and/or heating efficiency ratings that are advertised for an air conditioner are based on performance as a matched system. While changing only the outdoor unit may result in improved efficiency compared to the old system, it will not be as efficient as it was designed to be and your savings will be lower than with a matched system. In addition, you will not get a new product equipment warranty when installed with non-matched components.


Equipment Age

If an air conditioner outdoor unit is 10 years old and needs to be replaced, the indoor unit is just as old and has been subjected to the same amount of wear and tear. Replacing both units means you won¹t then have to replace the indoor unit in a short timeSyou'll have ten years of service from both units.


New Warranty


A new unit also gives you a new product warranty. Replacing the indoor unit at the same time as the outdoor unit results in peace of mind, knowing the new warranty covers the entire system.


A Bargain?

At first glance, replacing only an air conditioner outdoor unit may appear to be a bargain. But when you consider the lower cooling efficiencies, decreased reliability and the high cost of ownership that results, it's not such a bargain after all! Replacing an entire air conditioner system costs more, but you get moreSefficiency, reliability and comfort.



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R3E 1S5
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