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

Our answer is, it’s a great approach. Here's why.

Paired design—Your furnace is created to function with a paired air conditioner. This can help better energy efficiency and performance.

Technology upgrades—There have been abundant recent increases in HVAC technology, especially in energy efficiency, air filtration and quiet running. You’ll get these benefits all year when you update both units.

Better heating and cooling efficiency—Efficiency ratings are calculated on corresponding system performance. While getting a single new unit will improve performance, efficiency will be decreased from what it was envisioned to be. And your savings will not be as large as they’d be with matching units.

Equipment age—If your air conditioner is 10 years old (or older), your heating system is likely just as old. Replacing both means you’ll receive many years of efficient comfort, whatever the season.

New warranty—A new set of units also means you’ll get valid product warranties. You’ll have peace of mind when you realize the warranty protects your complete system for the same period of time.

At first glance, getting only a new air conditioner or heater can appear to be a bargain. But it’s not quite a good decision when you consider lower efficiency.

Replacing an entire system could be more expensive, but you receive much higher efficiency, reliability and comfort for years to come in Knoxville.