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

Our answer is, it’s a wise method. Here's why.

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

Technology enhancements—There have been many recent advances in HVAC technology, especially in energy efficiency, air filtration and quiet running. You’ll get these perks all year when you update both units.

Higher heating and cooling efficiency—Efficiency rankings are formed on matched system performance. While adding one new unit will improve performance, efficiency will be lower from what it was designed to be. And your savings will not be as much 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Equipment age—If your cooling system is 10 years old (or older), your furnace is likely just as outdated. Switching both means you’ll receive lots of years of efficient comfort, whatever the season.

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

At first glance, getting only a new cooling system or heating system could seem like a smart decision. But it’s not quite a good choice when you include lower efficiency.

Replacing an entire system may be more expensive, but you get much better efficiency, reliability and comfort for years to come in Houston.