When substituting the outdoor system, should the indoor unit also be replaced?

Our response is, it’s a wise approach. Here's why.

Matched design—Your furnace. This can help better energy efficiency and performance.

Technology advancements—There have been a lot of recent advances in HVAC technology, especially in energy efficiency, air filtration and quiet operation. You’ll have these advantages all year when you upgrade both units.

Improved heating and cooling efficiency—Efficiency rankings are based on corresponding equipment performance. While adding a single new unit will improve performance, efficiency will be lower from what it was engineered to be. And your savings will not be as big as they’d be with a matched system.

Equipment age—If your air conditioner is 10 years old (or older), your furnace is likely just as old. Changing both means you’ll have lots of years of efficient comfort, regardless of the weather.

Up-to-date warranty—A new set of equipment also means you’ll get updated equipment warranties. You’ll get peace of mind when you know the warranty covers your whole system for the same period of time.

It would appear installing just a new air conditioner or furnace might seem like a good decision. But it’s not a great choice when you factor in lower efficiency.

Getting an entirely new system might cost more, but you receive much more efficiency, reliability and comfort for many years in Memphis.

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