Smell From Furnace Ducts

At first the furnace will be on and i will smell a very strong odor coming from out of the vent that will burn my eyes and nose and give me a headache.

Smell from furnace ducts. The smell of rotten eggs isn t exactly a pleasant one but in the case of your furnace it should make things relatively easy to identify. Inspect all the ducts connected to your heating system so make sure there are no gaps. When a heat exchanger becomes damaged the gap releases a chemical smell that can resemble formaldehyde. In this blog we list 10 common causes of abnormal furnace odors.

The heat exchanger of your furnace gets extremely hot when it operates and this heat will burn any dust that has accumulated on the parts over the summer months. Usually this is the result of gaps in the ducts caused by rust or other damage. A smell like singed wires likely indicates an overheating metal component while a more metallic smell may come from a damaged rubber component. Your furnace as a unit may last for significantly longer than some of its individual components.

In most cases rotten egg smell coming from your furnace indicates that you have a gas leak. When i leave the house to smell this all on my clothes and we ll get on other people close when the furnace is shut and i m sitting by the vent the smell comes out of the vent. Any odor that drifts into the duct system will lead to odor all through the house as the blower pushes the smell out through the vents. For example many furnaces suffer cracked heat exchangers.

The most common reason you might experience a burning smell when you first turn on your heat for the season is that dust has settled on your furnace heat exchanger.