Your heating and air conditioning system has a lot of ways in which it can show you there is something going on that needs your attention. One of the warning flags to pay attention to is the sounds your system makes. With a central HVAC system, you will get used to hearing its regular sounds. These sounds include the swooshing sound you will hear when the system kicks on and the air makes its way through the vents.
It's dead in the middle of winter. Your trusty furnace fails you, and you are stuck in the house with no heat until a heating repair professional can get through the snow and ice and help you out. It is not at all uncommon for heating emergencies to happen in the coldest parts of winter when home heating systems are under the most strain. However, if you are a little educated about keeping warm, you and your family should be okay.