When the temperatures drop and you finally switch your furnace on for the first time in months, you might notice a strange smell filling your home. While it can be alarming, many of these odors are completely normal — but some may be a sign that your system needs professional attention. Here’s what those furnace smells really mean and when to call Jameson Heating & Air . A Dusty or Burning Smell If you catch a whiff of burning dust when your furnace first kicks on, don’t pani