I noticed this morning that my garage smelt like exhaust. I thought maybe it was because my husband had just left so I closed the door and went on my day. Later in the day, I opened the door to find the smell to still be there. I did some investigating and found that it was coming from my furnace exhaust pipe. Now this pipe is turned up right and it is not covered with a grill. I have a heating and cooling guy coming out tomorrow, however I'm a little worried whether or not it's safe to keep running the furnace. It doesn't smell inside the house. Any ideas?

Hello gurus, I have the following problem..or it is a problem even? Anyway. I have a natural gas furnace. Now, when the furnace runs, It smells wiered outside the house, but not inside. The smell is something like gas or exhaust. I was not sure if that was coming from my furnace exhaust pipe yet, but I basically stuck my nose right under the exhaust/vent pipe, and there it was that smell. Is it normal for any smell/odor to come out of the gas furnace exhaust pipe? My exhaust/vent pipe does not go up the roof, it is pretty much down a few feet above the foundation of the house pointing to the ground. I know I could call for service, but feel like it is a pretty simple question to you gurus. It is either supposed to smell from the exhaust pipe or not. Also, I wanted to point out that it does NOT smell anything at all around the furnace itself or inside the house..only from the exhaust pipe. Thanks!