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

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

Coordinated design—Your furnace is designed to run with a paired air conditioner. This might help enhance energy efficiency and performance.

Technology enhancements—There have been many recent improvements in HVAC technology, especially in energy efficiency, air filtration and quiet heating and cooling. You’ll have these perks throughout the year when you improve the complete system.

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

Equipment age—If your cooling system is 10 years old (or older), your furnace is likely just as outdated. Replacing both means you’ll enjoy many years of efficient comfort, whatever the season.

Updated warranty—A new set of units also means you’ll have updated equipment warranties. You’ll get peace of mind when you realize the warranty defends your whole system for the same period of time.

At first glance, replacing only your air conditioner or heater could feel like a smart decision. But it’s not a very good bargain when you include lower efficiency.

Installing an entirely new system might be costlier, but you receive much higher efficiency, reliability and comfort for many years in Oakville.