Many of us have experienced that smell right at the beginning of winter when we first start our central heating units. That burning, stale, musty smell that makes you want to turn your system off immediately. This smell is normal and usually goes away in less than a minute. Your heating system is just burning off dusty debris. If that burning smell lasts more than a minute, it is a good idea to call a professional to inspect your heating system. Central heating maintenance is often an afterthought until it is desperately needed. Your heating system has been hibernating throughout the summer months causing mechanical and electronic components to become rusted and inoperable. Fall has arrived and now is the time to make sure your heating system is ready to keep you warm this winter.