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

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

Coordinated design—Your furnace. This can help enhance energy efficiency and performance.

Technology upgrades—There have been abundant recent improvements in HVAC technology, especially in energy efficiency, air filtration and quiet heating and cooling. You’ll get these benefits throughout the year when you update the full system.

Improved heating and cooling efficiency—Efficiency ratings are calculated on matching system performance. While getting a single new unit will improve 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 matching units.

Equipment age—If your air conditioner is 10 years old (or older), your heater 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 receive new product warranties. You’ll have peace of mind when you know the warranty defends your complete system for the same amount 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 reduced efficiency.

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

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