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

Our answer is, it’s a wise idea. Here's why.

Paired design—Your furnace is designed to work with a corresponding air conditioner. This can help better energy efficiency and performance.

Technology advancements—There have been many recent improvements in HVAC technology, especially in energy efficiency, air filtration and quiet operation. You’ll receive these perks all year when you upgrade the whole system.

Higher heating and cooling efficiency—Efficiency ratings are formed on matching system performance. While putting in one new unit will result in better performance, efficiency will be lower from what it was envisioned to be. And your savings will not be as large as they’d be with a matched system.

Equipment age—If your cooling system is 10 years old (or older), your heating system is likely just as outdated. Replacing both means you’ll enjoy many years of efficient comfort, regardless of the weather.

Updated warranty—A new system also means you’ll receive updated equipment warranties. You’ll have peace of mind when you know the warranty defends your whole system for the same period of time.

At first glance, replacing only your cooling system or heating system can feel like a good decision. But it’s not a very good bargain when you factor in reduced efficiency.

Installing an entirely new system could be more expensive, but you get much better efficiency, reliability and comfort for years to come in Charleston.