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

Our response is, it’s a smart method. Here's why.

Coordinated design—Your furnace is created to run with a paired air conditioner. This may help enhance energy efficiency and performance.

Technology upgrades—There have been a lot of recent increases in HVAC technology, especially in energy efficiency, air filtration and quiet heating and cooling. You’ll receive these benefits throughout the year when you update the whole system.

Improved heating and cooling efficiency—Efficiency rankings are determined on corresponding equipment performance. While putting in a lone new unit will improve performance, efficiency will be decreased from what it was engineered 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 old. Switching both means you’ll have lots of years of efficient comfort, no matter the season.

Updated warranty—A new set of equipment also means you’ll get new product warranties. You’ll have peace of mind when you know the warranty covers your whole system for the same amount of time.

At first glance, installing just a new cooling system or furnace could feel like a smart decision. But it’s not quite a good choice when you consider lower efficiency.

Getting an entirely new system might be costlier, but you get much better efficiency, reliability and comfort for years to come in Columbia.