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

Our response is, it’s a wise approach. Here's why.

Matched design—Your furnace. This may help enhance energy efficiency and performance.

Technology advancements—There have been many recent increases in HVAC technology, especially in energy efficiency, air filtration and quiet heating and cooling. You’ll get these advantages all year when you upgrade the whole system.

Higher heating and cooling efficiency—Efficiency ratings are based on matched unit performance. While installing a lone new unit will enhance performance, efficiency will be decreased from what it was designed to be. And your savings will not be as big as they’d be with a matched system.

Equipment age—If your air conditioner is 10 years old (or older), your heating system is likely just as old. Switching both means you’ll have many years of efficient comfort, regardless of the time of year.

Updated warranty—A new set of units also means you’ll get updated equipment warranties. You’ll receive peace of mind when you know the warranty defends your complete system for the same amount of time.

It would appear replacing only your air conditioner or furnace may appear to be a bargain. But it’s not quite a good bargain when you consider lower efficiency.

Replacing an entire system could be costlier, but you earn much higher efficiency, reliability and comfort for many years in Alliance.