Aluminum Chimney Liner Lifespan

This ceramic cement seals a slightly cracked liner that is structurally sound.

Aluminum chimney liner lifespan.

Aluminum liners are used for low efficiency gas furnaces. The following table lists common external chimney components and their estimated life expectancy of the materials when exposed to normal weathering. Thermocrete ceramic chimney liner cost. Metal chimney liners usually of stainless steel or aluminum are primarily used to upgrade and repair existing chimneys.

A cast in place liner is the best choice if you have a masonry fireplace with a clay tile liner that is failing or if you have a chimney with structural problems. Estimated life expectancy of materials exposed to normal weathering in your chimney regular inspections and maintenance of your chimneys are essential to extending the life of your building. After two decades you will probably need to get the entire liner replaced to make sure it s still up to code and not a serious fire risk. A terracotta liner can last up to 75 years compared to a stainless steel liner that has a life expectancy of 25 years.

The average lifespan of a chimney liner is 15 to 20 years. Aluminum liners are lightweight and easy to work with but they rust easier than stainless steel and its lifespan is around five years. While aluminum is the cheapest chimney liner it s only suitable for medium heat gas appliances. A ceramic chimney liner like thermocrete costs 1 000 to 5 000 or 50 to 200 per linear foot.

We recommend ahrens chiming lining. Though the general time frame is 15 to 20 years it s important to note that there are factors that can shorten the lifespan or improve it.