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

Our reply is, it’s a great idea. Here's why.

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

Technology upgrades—There have been a lot of recent advances in HVAC technology, especially in energy efficiency, air filtration and quiet running. You’ll receive these perks all year when you upgrade the whole system.

Improved heating and cooling efficiency—Efficiency ratings are formed on matching unit performance. While adding a lone new unit will enhance performance, efficiency will be decreased from what it was designed to be. And your savings will not be as much as they’d be with a matched system.

Equipment age—If your AC is 10 years old (or older), your furnace is likely just as outdated. Switching both means you’ll have many years of efficient comfort, regardless of the time of year.

New warranty—A new system also means you’ll get new system warranties. You’ll receive peace of mind knowing the warranty defends your whole system for the same period of time.

It would appear getting only a new air conditioner or heater might feel like a bargain. But it’s not a very good decision when you consider lower efficiency.

Installing an entirely new system may be more expensive, but you earn much better efficiency, reliability and comfort for many years in Atlanta.

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