- Call a professional! Our HVAC professionals know how to properly maintain furnaces. Contact them today, so that they can ensure your furnace is ready for the cold winter months!
- On a monthly basis change the air filter in your furnace.
- Remove the air vents and ducts from your furnace and clean off all of the dust and debris with a vacuum cleaner.
- Check the exhaust flues outside to be sure they aren’t being blocked by branches or animal nests.
- Open all of the air vents in your home. Make sure they aren’t being blocked by furniture, book shelves, boxes, etc.
Resource: http://homeguides.sfgate.com/properly-prepare-furnace-winter-25994.html