Our answer is, it’s a good method. Here's why.
Matched design—Your furnace. This may help enhance energy efficiency and performance.
Technology upgrades—There have been abundant recent improvements in HVAC technology, especially in energy efficiency, air filtration and quiet running. You’ll get these perks year-round when you update the full system.
Better heating and cooling efficiency—Efficiency levels are determined on corresponding unit performance. While getting a lone new unit will result in better performance, efficiency will be lacking from what it was envisioned to be. And your savings will not be as much as they’d be with matching units.
Equipment age—If your cooling system is 10 years old (or older), your heater is likely just as outdated. Switching both means you’ll enjoy a lot of of years of efficient comfort, whatever the season.
Updated warranty—A new set of equipment also means you’ll have new product warranties. You’ll receive peace of mind knowing the warranty protects your entire system for the same period of time.
It would appear replacing only your cooling system or heater might appear to be a bargain. But it’s not quite a good choice when you include decreased efficiency.
Installing an entirely new system could be more expensive, but you earn much higher efficiency, reliability and comfort for many years in Calgary.