Furnace Odors: What They Could MeanIs your Grand Traverse County home plagued by a furnace smell that you can’t seem to identify? The problem could be a number of things, so to help you out, we’ve compiled a list of possible odors:

Burning Dust

During the months of non-use, dust will accumulate in your heating system. When you switch the unit on, the smell of burning dust will waft into the air. If this lasts longer than a couple of hours, you may need to call a technician.


Mold is a big problem for homeowners, especially if someone in the household suffers from asthma or other respiratory issues. A musty odor means that you should have an HVAC professional clean your heating system and ductwork.


While “stinky” might not exactly be a technical term, it’s likely that you’ll know what we mean when you smell it. This out-of-the-ordinary odor should lead you to change your furnace’s air filter, which typically needs to be switched each month during the winter.


Whether what you smell is due to wiring or a breakdown of a mechanical component, this isn’t something to be taken lightly. Get it checked before you entire system goes down.


Many homeowners close the registers in their home to control the distribution of treated air. The problem is that closing 20 percent or more of these registers will cause a smoky odor from heat resistance and build-up. Solve this issue by opening up the registers.


Smelling rotten eggs is an indication of a gas leak. This is a situation that needs immediate attention. And when we say immediate, we mean get out of the house and call 911 or the gas company right away. Don’t even turn on or off any lights, or anything else that might cause a spark.

If you need additional assistance on what your furnace smell could mean, or have any other comfort comfort concerns, please don’t hesitate to contact the professionals at Team Bob’s Heating Cooling Plumbing. We’ve been serving the HVAC needs of Grand Traverse County and the surrounding area for over 35 years.

Our goal is to help educate our customers in Traverse City, Michigan and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about furnace odors and other HVAC topics, download our free Home Comfort Guide or call us at 231-714-6196.

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