The simple answer is: yes. But we want to assure you that it is uncommon for modern residential furnaces to create hazards in a home. They are built with multiple safety features to allow them to run as safely as possible. If you are diligent about scheduling maintenance inspections and tune-ups for the furnace each fall and always respond quickly to any signs of a malfunction to call for furnace repair in Durham, NC, you should have little reason to worry about safety hazards from your gas furnace.
We still have to discuss what can go wrong, however. This will help you in case you detect signs of furnace trouble. Never hesitate to call us when you think something may be wrong (and always shut down the furnace at the furnace switch before calling us).