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Wuhan HanKou Furnace Co., LTD is a global supplier of industrial furnace and advanced technologies for heat processing. We designing and manufacturing industrial furnaces equipment for 50 years.Depending on its age, your furnace might have one of the following three types of ignition methods. Standing Pilot Ignition You're probably familiar with a standing pilot light, the little blue flame that sits in front of one of the furnace burners. 15 to 20 years. According to most manufacturers and heating professionals, as well as This Old House, the average furnace will need to be replaced every 15 to 20 years, as long as the system is properly maintained.
Jul 11, 2016 · This group would expect furnaces and air conditioning units to last 12-15 years. For those between 35 and 50, it depends on how they were raised. The more conservative group has longer life expectations. The older group tends to take better care of things and expects them to serve their needs longer. Overall Efficiency <p>Efficiency within a model group will tend to vary by the size (capacity) of the unit. Some products, like furnaces, may also be affected by installation orientation (horizontal, upflow, or downflow) or even by the nozzle used in installation, as is the case with boilers and oil furnaces.