Indicators That Your Existing Heating System May Be Ready for Replacement

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Heat Pumps

If you’re like me, you’re probably reading this with one eye closed. After all, any time you read anything with the word “replacement”, especially “furnace replacement,” it probably doesn’t spell good financial news.

But you still have another eye open, so I’ll try to be as gentle and honest as possible as I share some of the telltale signs that may indicate your furnace is on its last leg.

But first, do three quick math calculations:

  • Determine exactly how old your furnace is. If it’s more than 20 years old, it’s probably running on borrowed time. But if it’s in that “gray” area of about 15 years old, you might consider replacing it with more efficient Energy Star certified furnace.
  • Add up all the money you’ve spent on furnace repairs in the last two or three years. (Don’t factor in regular, annual maintenance checks.) Like old cars, old furnaces become fussy and prone to frequent breakdowns the last few years of their life span. The repair bill total alone might demonstrate that you’re fighting a losing battle against furnace replacement.
  • Review your energy bills. Take into account rate increases, of course, but if your heating bills have been going up while your usage has remained fairly constant, this is a good indicator that your aging furnace isn’t working as efficiently as it should.

With these figures as a backdrop, keep that eye open as you consider the other signs of a faltering furnace:

  • It’s rusting or cracking.
  • It’s making loud or unusual noises it hasn’t made before.
  • It’s spewing dust, dirt, soot or rust.
  • It’s cycling on and off in an unusual manner.
  • The furnace flame has changed from blue to yellow (a potential sign of carbon monoxide).
  • Your home is heating unevenly or is more humid than normal.

Yes, taking stock of your furnace can be an eye-opening experience, but furnace replacement can be surprisingly easy when you call Scott’s Heating & Air Conditioning. We’ll size your home, help you find the most economical solution and then encourage you to train both eyes on your new, blazingly efficient furnace.


Scott’s Heating & Air Conditioning is a full-service heating and air conditioning company and a Bryant® Factory Authorized Dealer in Central Florida. Whether you need repair, maintenance, or installation of a new heating or cooling system, we provide efficient, cost-effective, and professional service. When it’s hot, call Scott!

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I had an excellent service call with Daniel today. He quickly diagnosed the problem with my ac and explained the issues, all my options, and prices. He explained everything to me such that I understood what was going on, and felt totally comfortable with the decision I made. The office staff was excellent, as well. I plan to replace my ac before year's end and will definitely purchase from Scott's. Thank you! It's so great to do business with competent, courteous, and efficient individuals.
The professionalism of the parties I spoke with and/or met spoke words. Things were explained in terms I could understand throughout the process. Even though the instillation took 2 days due to some issues, the team did their best to have my AC replaced and running by the end of day 2 and kept us comfortable in the mean time. I highly recommend this company for any AC needs…
Scots can always be counted on to keep our AC running properly with friendly, on time, professional technicians.
I had a new unit installed back in 2022 and have been having regular maintenance twice yearly since then. All has been well. Today I was scheduled for maintenance once again and my unit was taken care of, but my technician Allen pointed out that my other unit outside (not installed or maintained by Scott's) had frayed wires on the outside condenser which would soon lead to a short on that unit. He offered to get me a quote to fix that and I agreed to receiving a quote. He was able to provide the fix right away and had that taken care of in less than an hour. I really appreciated the extra attention he paid to the overall area, and that he was willing to repair something that was not installed by his company. It was his genuine concern that took precedence. I will continue to recommend this company and will most likely have them as my provider when that second unit needs replacement.

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