Should There Be Rust on My Furnace? Bartlett Heating and Air Has the Answer

The appliances you have that use water are expected to eventually have rust on it at some point in time. Your furnace on the other hand does not use water to heat your home. Older furnaces can gain rust for a few different reasons. First, what is rust? Rust is a corrosion that is caused by a chemical reaction between water, air, and metal. Corrosion weakens metals so you want to prevent it as much as you can. If your gas furnace, corrosion often happens because of the combustion gases interacting with the metal. The vapor made in the combustion process that comes out of the flue of the furnace can contact the metal and start corrosion. This happens typically on older furnaces and often means that the furnace has reached the end of its lifespan. If your furnace is not venting the correct way, you can end up with rust on a furnace that isn’t really old. If you look over your furnace and see the start of corrosion, be sure to call Bartlett Heating and Air right away. We will come out and check the your furnace is vented properly. If you have your AC mounted above the furnace, the condensation can sometimes leak into the furnace and cause rust. Make sure to take a look at your heat exchanger. Your heat exchanger holds gasses that are dangerous to you and your family if leaked out. If your heat exchanger is rusted, it will lead to cracks and leaked gasses. Bartlett Heating and Air checks all that for you with your annual furnace cleaning that you should get done each fall. Call Bartlett Heating and Air today to schedule yours!