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

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

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

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

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

Equipment age—If your AC is 10 years old (or older), your heating system is likely just as dated. Replacing both means you’ll receive many years of efficient comfort, no matter the time of year.

Up-to-date warranty—A new system also means you’ll receive updated equipment warranties. You’ll have peace of mind when you realize the warranty protects your whole system for the same period of time.

On the surface, replacing only your cooling system or heater can feel like a smart decision. But it’s not a great bargain when you factor in lower 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.