Burning Furnace Smell A burning smell coming from the furnace could be a sign that there is something wrong with your furnace and that it needs attention from a professional HVAC technician. On the other hand, a burning smell could also be harmless and it may pass quickly on its own. Find out what the possible causes of a burning smell in a furnace are and whether they require attention from a professional below. Debris, Dust and Cobwebs Being Burned Off This is a common cause of the burning smell experienced by many people. When heaters are inactive for a long period of time, and they are not cleaned, dust, debris and cobwebs can accumulate on them. When the heater is turned on, all of this debris and dust will get burned up causing an unpleasant smell in the home. It should dissipate rather quickly, within half an hour. If the smell does not subside, within half an hour it is likely that another issue is to blame. Old Magnolia homes that have been vacant, often experience a burning smell when the furnace is turned on for the first time. Too Many Closed Registers in the Ductwork Another common reason of a burning smell could be that too many air duct registers are closed. Air registers are where air is released to either heat or cool rooms throughout your Magnolia home. If too many air registers are shut, than hot air can accumulate because there is no where for it to go. Too much accumulated heated air will have a burning smell to it. If a lot of your ducts are closed, open them up and see if the burning smell will subside. You should turn off your heater first, before you open all the registers. Then once the registers are open you can turn your heater on again. Overworked or Damaged Furnace An overworked furnace will produce a burning or smoking smell. Overworked furnaces could the result of a dirty air filter. Check your air filter and if it is clogged, replace it. Your furnace's motor may also need to be lubricated with oil. If replacing the air filter and lubricating the motor does not eliminate the burning smell than the problem requires the attention of a skilled HVAC professional. Part of the furnace may be broken or damaged or it may be old and need replacing. An HVAC technician will be able to inspect the furnace and recommend a repair or replacement to get rid of the smell and fix the issue. Is your furnace in smelling up your Magnolia, TX home? Call Affordable American Air Conditioning & Heating today at (281) 704-3696, and get that foul odor out of your home.