I called the Heating, Ventilation & A/C contractor because of something wrong with the furnaceâ€¦ I couldn’t pinpoint what I was hearing or smelling, but whenever the furnace turned on, it was there, but shortly after the furnace started spewing out heat, the noise plus the smell would disappear. I tried to tell the person who had answered the phone what I heard plus smell, but it was something you had to experience in person. She told me she would send an Heating, Ventilation & A/C worker to the house, but it would take a few days. I was okay with waiting, since this had been happening for numerous days, the noise plus smell were not affecting the way the furnace heated the house, so I felt comfortable waiting a while, however when the Heating, Ventilation & A/C worker finally arrived, he asked what I was ‘experiencing’, however he wasn’t sure what to expect, but he said he could figure it out. There wasn’t a furnace puzzle he couldn’t solve. I was hoping he was right, but he hadn’t yet ‘experienced’ it, and after half an minute of listening to the furnace plus smelling the smell, he still didn’t suppose what was wrong with it. I supposed the Heating, Ventilation & A/C worker wasn’t as expertiseable as he thought, but that didn’t stop him. He took the air vent covers off the air vents to see if there was something inside that would cause the noise, or if a foreign body wasn’t causing the smell. After another minute, he said he was stumped plus called the Heating, Ventilation & A/C for the opinion of another Heating, Ventilation & A/C worker he worked with.