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

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

Matched design—Your furnace is designed to work with a matching air conditioner. This may help better energy efficiency and performance.

Technology advancements—There have been a lot of recent advances in HVAC technology, especially in energy efficiency, air filtration and quiet operation. You’ll receive these advantages year-round when you update the full system.

Higher heating and cooling efficiency—Efficiency ratings are formed on matching system performance. While putting in a single new unit will improve performance, efficiency will be lacking from what it was designed to be. And your savings will not be as large as they’d be with matching equipment.

Equipment age—If your cooling system is 10 years old (or older), your furnace is likely just as old. Replacing both means you’ll have many years of efficient comfort, no matter the weather.

Updated warranty—A new set of units also means you’ll have valid system warranties. You’ll have peace of mind when you know the warranty covers your whole system for the same period of time.

On the surface, replacing only your cooling system or heating system could appear to be a smart decision. But it’s not quite a good bargain when you consider reduced efficiency.

Replacing an entire system may cost more, but you get much more efficiency, reliability and comfort for years to come in Pierre.