If your furnace smells like it’s burning, how worried should you be?
Dana Gallagher
As temperatures start to drop, homeowners make the switch to heating toensure the home remains comfortable.
However, the warm air can often be accompanied by a burning smell that quickly permeates your space.
Credit:Dana Gallagher
Why Does the Furnace Smell When You First Turn it On?
The smell of burning dust should fade quickly.
Consider these common reasons why the furnace may smell when you first turn it on.
Musty Odors
Musty odors are typically produced bymold and mildew.
Turn off the unit and contact an experienced HVAC technician to inspect the furnace for burned or frayed wiring.
Rotten Egg Scent
The smell of rotten eggs should never be dismissed.
Leave the home and communicate with the gas company to locate and repair the leak.
Do not return to the house until you have been told it’s safe to do so.
If the smell is relatively faint, then it may be a partial blockage.
Turn off the furnace, open some windows for ventilation, and contact an HVAC professional.
Animal Odors
Animal odors can be due to a couple of different sources.
