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Signs You May Need to Replace Your Furnace

Your furnace is an essential part of keeping your home warm during the winter. If it isn’t up to the task, you want to get it replaced before it unexpectedly goes out on you. So what are some signs that your furnace may need a replacement?


The average lifespan of a furnace is twelve to fifteen years, but you should never assume your furnace will last that long. If you notice anything odd going on with your furnace, or if it has reached ten years of age, you should get it looked at. We will give you an estimate on the lifespan of your furnace and when you may need to get it replaced.


Your furnace is going to naturally make noise as part of the process of it running. However, there are normal furnace noises and abnormal furnace noises. If you’re suddenly noticing that your furnace is making popping or squeaking noises, it’s time to call in the professionals. These are not normal furnace noises and typically indicate something is amiss.

Pilot Light Color Change

When your furnace is operating normally, the pilot light will glow blue. If the light has changed to a yellow color, or any other color, something is not working correctly in your furnace. This can indicate a carbon monoxide leak, so it’s essential to get this checked out quickly.

Cold Air

Your furnace’s job is to produce heat, so if it is suddenly pushing out chilly air, something in the furnace isn’t functioning properly. 

Rising Heating Bills

If you’ve noticed your heating bills have suddenly gone up, a problem with your furnace could be the culprit. It may not be functioning at optimum capacity, which means it is working harder to get heat out. This will cause the furnace to work extra hard, which will cause a rise in your bills.

At Minnesota Heating & Air Conditioning, we want to help you with your HVAC needs. Contact us today to schedule an appointment.