The life expectancy of a Lennox furnace can vary depending on a number of factors, such as the model and size of the furnace, the quality of its installation, and the level of maintenance it receives. In general, however, the life expectancy of a Lennox furnace is around 15-20 years. This means that most Lennox furnaces will last for a significant amount of time, but eventually, they will need to be replaced. To extend the life of your Lennox furnace, it is important to have it regularly serviced and maintained by a trained professional. This will help to ensure that it is operating safely and efficiently, and can help to prevent any potential issues that could shorten its lifespan.
