Typical american standard furnace heat exchanger warranties are 20 or 40 years.
Trane gas furnace life expectancy.
The quality of the equipment.
A builder s grade unit may only last 8 to 12 years because it s not built as durably.
Some sources report the average lifespan of a gas furnace to be only 15 years.
So the answer to the question how long does a furnace last is complicated.
Air conditioning unit life expectancy.
Furnace life expectancy like any other product will vary greatly for a number of reasons.
The life expectancy of a furnace depends on several factors.
With regularly scheduled maintenance your furnace could last anywhere from 15 years up to 25 years.
The question is how many years can you reasonably expect a furnace to continue delivering warm air.
If you follow this reasoning your 30 year old appliance has already doubled its expected lifespan.
Between 15 and 20 years.
The good news for those who choose to go with a trane ac unit is that these days the expected lifespan for the unit is 15 20 years.
Regardless of the logic you follow the 30 year mark is at or close to the maximum lifespan you should expect from your furnace.
If your furnace was correctly sized for your square footage and installed by a licensed technician you can expect a long lifespan.
Many owners elect to replace units closer to 10 15 in order to upgrade to a more efficient model.