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The Average Boiler Life Expectancy. Boiler life expectancy depends very much upon the type of boiler that you purchased. The average expectancy of a traditional gas boiler would be between 10 and 15 years, if you keep it well maintained and have it serviced annually. Other boilers, such as electrical devices, will last between 8 and 10 years.
The average lifespan for a boiler or furnace can hinge on a number of factors, including the quality and type of the unit, and the consistency of maintenance performed on it.For example, a well-maintained traditional gas boiler or furnace has an average expectancy of 15 years.Electrical units have an average expectancy of 10 years. With a superior quality furnace or boiler that is professionally serviced, the life expectancy rises to 20 years.f itâs time to have your furnace or boiler serviced, give us a call at Tempco Heating & Air Conditioning. Weâve proudly served Crystal Lake and nearby communities for more than 20 years. Be sure to check out our Internet specials before you call, too!