The two most common types of heating systems found in homes are gas-fired boilers and furnaces. The furnace is by far the most popular type of home heating system in the U.S., but the boiler has remained competitive for a number of reasons. Boilers require fewer repairs on average, can cut down on energy costs, provide heat without blowing around dust, and operate at quiet levels. They also tend to outlast furnaces. The average furnace life expectancy is 15 to 20 years. Boilers can last up to 30 years, letting a whole generation grow up in a house with the same heating system.
But it isn’t enough to simply know a boiler lasts longer. Why it last longer helps to understand how boilers work and why they have so many other advantages. Let’s take a closer look at boiler longevity.