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This is How you Know that Your Furnace is about to go Out

02-15-18 / / By gran

As a long Minnesota winter begins to take hold, we are driven inside for long dark evenings of hot soup, warm cocoa, and Netflix, thankful for our homes reliable furnace to keep us warm. But what if your furnace is unreliable? How do you tell if your furnace needs servicing or replacing? Here are a couple of simple ways to know if you need to call a Quality Refrigeration technician to come in and look at your furnace.  


Is your furnace more than 15 years old?  

Modern furnaces are built keep going strong for the better part of two decades with proper preventative maintenance. However, if your home’s furnace is 15 years or older, you will want to pay special attention as it may be coming to the end of its serviceable lifespan.  


Has your heating bill increased?  

As your furnace ages, it becomes less efficient. An inefficient furnace is easily detectable by an increase in your monthly heating bill. If you are paying more money for the same heat, it’s time to have your old furnace inspected. Also, if the same setting on the thermostat is no longer keeping you and your family comfortable and you feel the need to turn it up, that can be a sign that your heating system is no longer running as efficiently as it once did.  


Is it making weird noises?

If your furnace or ducts start making unusual or different noises than you are used to, that can be a sign of wear or blockages that can be stealing your heat away.  


Danger Signs

The most dangerous issue resulting from an old furnace is not the loss of heat, however. It’s if your furnace begins leaking carbon monoxide into the air that you and your family breath. Carbon monoxide is invisible, has no odor, and is undetectable, but can be a serious risk to your families health. While you cannot detect carbon monoxide by looking or smelling for it, there are ways you can know if your furnace is beginning to leak the harmful compound into your home.


  • If the burner flame within your furnace is burning yellow instead of blue, that can be a good sign of the presence of carbon monoxide.
  • Streaks of soot on, and around, your furnace can be a sign of carbon monoxide.
  • Extra moisture present on windows, walls, or other cold surfaces can be indicative of carbon monoxide.
  • Rusting on the flue pipes or other connecting pipes can mean carbon monoxide is present.
  • If your family is complaining of headaches, a burning feeling in their eyes or nose, nausea, disorientation, or flu-like symptoms, you may have carbon monoxide issues.


If you find any of these indicators of carbon monoxide you should air out your home and immediately call Quality Refrigeration to get a technician out to test for it in your home or business.  


The most important way to tell if your furnace is beginning to age out of its reliable lifetime is with regular annual maintenance. Having a knowledgeable, experienced technician come in every year to look at your furnace, filters, and ducts is the best way to know that your furnace will be operating safely and efficiently for another year. For the best heating technicians in the Twin Cities, call Quality Refrigeration. We’ll see your whole family through another cold winter in comfort and safety. Then, all you’ll have to worry about is what’s on Netflix.

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