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

Our response is, it’s a good approach. Here's why.

Paired design—Your furnace is made to function with a corresponding air conditioner. This might help better energy efficiency and performance.

Technology upgrades—There have been many recent advances in HVAC technology, especially in energy efficiency, air filtration and quiet running. You’ll receive these advantages year-round when you update the complete system.

Improved heating and cooling efficiency—Efficiency ratings are calculated on matching equipment performance. While adding one new unit will enhance 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 units.

Equipment age—If your AC is 10 years old (or older), your heater is likely just as dated. Replacing both means you’ll receive many years of efficient comfort, regardless of the season.

Up-to-date warranty—A new set of equipment also means you’ll have updated system warranties. You’ll have peace of mind when you know the warranty protects your whole system for the same amount of time.

It would appear installing just a new AC or furnace may feel like a bargain. But it’s not a very good bargain when you include decreased efficiency.

Installing an entirely new system might cost more, but you earn much better efficiency, reliability and comfort for long into the future in San Antonio.