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

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

Coordinated design—Your furnace is made to function with a corresponding air conditioner. This might help enhance 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 improve the complete system.

Better heating and cooling efficiency—Efficiency ratings are calculated on corresponding unit performance. While installing one new unit will result in better performance, efficiency will be decreased 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Equipment age—If your AC is 10 years old (or older), your heater is likely just as outdated. Replacing both means you’ll receive many years of efficient comfort, no matter 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 realize the warranty defends your whole system for the same period of time.

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

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