Oil furnaces have a reputation for being old technology. Nevertheless, they are still in use today because they have several advantages over other heating systems. Now, you’re probably wondering how many years of service an oil furnace can give you before you have to replace it. Well, let’s look at some of the factors given by furnace services that determine the life expectancy of an oil furnace. Type of oil furnace Oil furnaces can be divided into two types: air-cooled and water-cooled. Air-cooled models use a fan to cool the heat exchanger; water-cooled models use water from a home’s water supply to cool the heat exchanger. An air-cooled model typically…