When the first cold snap of the season hits, you might notice a burning smell after turning on your heating system. While this odor can be alarming, it’s often not a cause for immediate concern. Let’s explore why this happens and when to take action. 1. Dust on the Heating Elements The most common cause of a burning smell is dust buildup on heating elements or in the ducts. When the heat is turned on for the first time after months of inactivity, this dust gets heated and burns off, producing a burning odor. This smell usually disappears after a few minutes. If it persists, however, further inspection might be necessary. 2. Dirty Air Filters Clogged or dirty air filters can restrict airflow, causing the furnace or heating system to overheat. When this happens, dust and debris in the filter can burn, resulting in a similar burning smell. Changing air filters regularly helps maintain clean airflow and prevents overheating. 3. Overheated Electrical Components A burning smell could indicat...