If you want to you that your furnace works properly and great comfort for you so you can maintain your furnace every year.Gas furnaces can be dangerous if they are in need of maintenance and you neglect them; for instance if there is a gas leak it could be very dangerous if not addressed early. Some maintenance tips are follows here
Check for gas leaks
If you’re your furnace leaks so your utility bills become higher and furnace do not work properly so check your furnace is your furnace leak so you want to repair it
Verify pilot light
If the pilot light is out the furnace will not work, therefore make sure the pilot light is lit and working properly. The pilot light should be a deep hot blue, but if it is another color then it is not working properly.