Learn more furnace safety and efficiency tips. Find out if you should invest in a new furnace.
A combination of insulation improvements, air sealing, and winterization projects will help ensure your heating system is efficient and long-lasting. The worse your home's insulation, the harder your heating and cooling system will have to work.
When there is a problem with your furnace, it is usually the thermostat (control system), gas valve/thermocouple/heat exchanger (heat source), or the blower/air handler/ductwork (distribution system). In any case, a trained and qualified HVAC technician will be able to fix the problem quickly and effectively.
And not all furnaces use natural gas, although most do. Your furnace may run on propane, heating oil, or electricity.