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

Our reply is, it’s a good idea. Here's why.

Matched design—Your furnace is made to function with a corresponding air conditioner. This may help enhance energy efficiency and performance.

Technology enhancements—There have been abundant recent increases in HVAC technology, especially in energy efficiency, air filtration and quiet running. You’ll get these perks throughout the year when you improve the full system.

Higher heating and cooling efficiency—Efficiency levels are based on corresponding system performance. While putting in one new unit will improve performance, efficiency will be lower from what it was engineered 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Equipment age—If your AC is 10 years old (or older), your heater is likely just as outdated. Changing both means you’ll receive lots of years of efficient comfort, whatever the season.

Up-to-date warranty—A new system also means you’ll get updated equipment warranties. You’ll receive peace of mind when you realize the warranty covers your total system for the same period of time.

At first glance, getting only a new cooling system or heater may appear to be a smart decision. But it’s not a very good bargain when you factor in reduced efficiency.

Replacing an entire system might be costlier, but you receive much more efficiency, reliability and comfort for years to come in Champaign.