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

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

Matched design—Your furnace is made to function with a matching air conditioner. This can 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 throughout the year when you improve both units.

Improved heating and cooling efficiency—Efficiency levels are formed on corresponding equipment performance. While putting in a single new unit will result in better performance, efficiency will be decreased 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 old. Replacing both means you’ll have lots of years of efficient comfort, whatever the time of year.

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

It would appear replacing only your AC or heating system can appear to be a smart decision. But it’s not a very good choice when you include decreased efficiency.

Installing an entirely new system might cost more, but you earn much higher efficiency, reliability and comfort for years to come in Saint Charles.