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

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

Coordinated design—Your furnace is designed to run with a paired air conditioner. This can help better energy efficiency and performance.

Technology enhancements—There have been abundant recent improvements in HVAC technology, especially in energy efficiency, air filtration and quiet heating and cooling. You’ll receive these advantages all year when you upgrade both units.

Higher heating and cooling efficiency—Efficiency rankings are based on corresponding system performance. While putting in one new unit will improve performance, efficiency will be lower from what it was envisioned 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Equipment age—If your AC is 10 years old (or older), your heating system is likely just as outdated. Changing both means you’ll enjoy lots of years of efficient comfort, whatever the time of year.

Up-to-date warranty—A new set of units also means you’ll have up-to-date system warranties. You’ll have peace of mind when you know the warranty protects your complete system for the same period of time.

At first glance, replacing only your AC or heating system can appear to be a smart decision. But it’s not quite a good decision when you consider decreased efficiency.

Getting an entirely new system may be more expensive, but you earn much higher efficiency, reliability and comfort for long into the future in Charlotte.