smoke from furnace

Why does my furnace smell? A brief dusty smell when a furnace first starts for the season can come from dust burning off, but persistent burning, electrical, gas or rotten-egg odours can indicate a problem that needs attention. If you smell gas or suspect a dangerous combustion issue, leave the area and follow emergency guidance rather than continuing to run the furnace. What Do Furnace Odours Indicate? You know that smell the first time your home furnace fires up--a little bit dusty, a little bit … unnerving? Honestly, that hot dust smell upon first fire-up is OK--nothing to be worried about if it goes away. Your fan has been sitting idle for a couple weeks to a couple months and some dust has settled in the works. It’ll blow clear and diminish in minutes. It’s the other smells that you want to use as an early warning sign that your furnace needs an adjustment or repair. Sniff something weird or unrelenting, take action immediately. Read More