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 created to run with a matching air conditioner. This can help enhance energy efficiency and performance.

Technology advancements—There have been many recent improvements in HVAC technology, especially in energy efficiency, air filtration and quiet heating and cooling. You’ll get these perks throughout the year when you update both units.

Better heating and cooling efficiency—Efficiency levels are based on corresponding equipment performance. While putting in a single new unit will enhance 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 cooling system is 10 years old (or older), your heater is likely just as old. Replacing both means you’ll have a lot of of years of efficient comfort, whatever the time of year.

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

It would appear replacing only your AC or heater 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 receive much higher efficiency, reliability and comfort for years to come in Saint Charles.