Lets compare Forever Flex chimney liners to the Flex King Pro chimney liner and see which chimney liner is the best fit for you and your budget.

(Click the Chimney Liner Comparison Chart if you would like to see it enlarged. Then click it again to return to page.)

Forever Flex Chimney Liners

Forever Flex Chimney Liner – Pros

Forever Flex chimney liner is made of 316Ti metal alloy good for all purpose burning. Forever Flex chimney liner has a thickness of 0.006 inches.

Forever Flex Chimney Liner – Cons

A Forever Flex chimney liner has many cons going against it. The first being the warranty is not homeowner friendly. Their “Sweep Install Only” warranty allows only certified chimney sweeps to install and maintenance it. If a DIY homeowner installs a Forever Flex chimney liner then the warranty becomes void. The quality of the Forever Flex chimney liner can be seen in the crush point test results and the overall thickness of the Forever Flex chimney liner illustrated in the above graph. The next con is that Forever Flex chimney liners are sold through distributors, most likely chimney sweeps. This means that is the homeowner has an issue with a Forever Flex chimney liner there is no customer service to call. As a homeowner you always be dealing with the chimney sweeps and their service prices. Also given that Forever Flex chimney liners are sold through distributors, the prices are inflated since there is a middle man. The final con against Forever Flex chimney liners is the interior of a Forever Flex chimney liner is corrugated which allows deadly creosote to buildup in your flue liner and could ultimately lead to a chimney fire in your home.

Flex King Pro Chimney Liner

Flex King Pro Chimney Liner – Pros

The Flex King Pro chimney liner is the highest quality DIY (Do It Yourself) liner on the market today. It is over twice the thickness of a Forever Flex chimney liner at a total thickness of 0.014 inches. The Flex King Pro chimney liner is made of 2 layers of 316Ti metal alloy which gives the Flex King Pro a much higher crush point then a Forever Flex chimney liner. The best part about the Flex King Pro chimney liner is that it comes with a lifetime DIY warranty which states that a certified chimney sweep does NOT have to install it , but rather a DIY homeowner can install it themselves. The Flex King Pro is also UL listed and is sold directly from the manufacturer to you. This means if you ever have any questions or concerns, customer service is just a phone call away. Because the Flex King Pro is a factory direct chimney liner, the prices on both a Flex King chimney liner by itself and a Flex King Pro chimney liner kit are the lowest around.

The smooth wall interior of the Flex King Pro chimney liner gives it some great advantages over Forever Flex chimney liner. These advantages are 20% increase in chimney draft with allows for more efficient burning and a 25% decrease in creosote buildup in the chimney liner. The Flex King Pro is the only smooth wall interior DIY chimney liner that is sold directly to homeowners.

Flex King Pro Chimney Liner – Cons

None

Conclusion: Winner – Flex King Pro Chimney Liner

When comparing the Forever Flex chimney liners to the Flex King Pro chimney liner, there is no comparison. As far as quality, warranty, and price, the Flex King Pro chimney liner is hands down the best value for your money when you are shopping for a DIY chimney liner for your home.