


We were out on W Delhi Rd in Ann Arbor recently, quoting a full AC replacement for a homeowner who is ready to make the switch. They already have a newer Lennox furnace inside - a solid, high-efficiency unit that's doing its job well. The problem? The outdoor AC condenser is a 1991 model. That's over 30 years of service, and it's running on R-22 refrigerant, which hasn't been manufactured in the US since 2020.
Here's the thing about mismatched systems - a new furnace paired with a 35-year-old AC is a real efficiency killer. The furnace is ready to perform at a high level, but the old condenser can't keep up. It's like upgrading half the equation and wondering why your utility bills are still climbing every summer.
Modern AC units use significantly less energy to cool a home compared to equipment from the early 90s. For Ann Arbor homeowners dealing with humid Michigan summers, that gap in efficiency shows up directly on your monthly bills. And beyond the cost, there's the reliability factor. A unit that old isn't a question of if it will fail - it's when. Waiting until the first 90-degree day of the year to find out is a tough way to learn that lesson.
When we quote a job like this, we're looking at the full picture - the existing equipment, the ductwork, the home's cooling load, and what system will actually perform well long-term. Getting the right match between your furnace and AC matters more than most homeowners realize. We're proud to offer honest assessments and straightforward pricing for HVAC system installation and replacement in Ann Arbor and the surrounding areas.
If your outdoor unit is showing its age, now is a smart time to get ahead of the summer rush and get a quote before your options get limited. We're happy to take a look and give you a straight answer on what makes sense for your home.