Frequently Asked Questions

Q. What is a chimney relining system?

Most masonry chimneys are made with clay tiles that line the inside of the chimney. Over time these tiles can break down or crack due to several contributing factors. When this happens the chimney is no longer safe and needs a new liner. A chimney liner is nothing more than a metal insert placed in the existing chimney. There are different types of metal liners, including flexible and rigid stainless steel. Depending on the design of your chimney a flexible liner may be your only option. If you have a short and straight ascending chimney you may opt for a rigid liner.

Q. Do all chimneys have liners?

No. Not all chimneys have liners. Chimneys built before 1940 most likely weren't built with liners. If you have a chimney without a clay liner you can make it safe by installing a stainless steel liner.

Q. What's involved in getting a chimney liner replaced?

The most cost effective way to replace your chimney liner is to have a stainless steel relining pipe installed. Depending on the type of chimney you have you may need either a rigid or flexible pipe. The job can be done by anyone handy. If you do run into trouble, you can call the Chimney Liner Depot for help.

Q. Can I do it myself?

You will get different answers to this question. Some will tell you no, some will tell you yes. So which is it? Well in all truthfulness, the answer is yes. The bottom line is with the Chimney Liner Depots help you can do the job, and do it right. We promise you that whatever problem you have, however many times you have to call us, we will be there for you. If you are handy around the house then you will have no problem relining your chimney. If you are not sure what you need to do the job, call us at 1-800-943-1515.

Q. How do I measure for a chimney liner tee kit?

Measure from the top of the chimney down to the thimble area.

Q. How do I measure for a fireplace insert kit?

Measure from the top of the chimney to the middle of the fireplace box (where the logs burn).

Q. How do I know what size diameter pipe I need?

What size pipe is coming off the oil, gas furnace? If it's 6” and it's a gas furnace, you need a 6” liner, however, you can drop down to a 5” pipe.

For wood- If 6" is coming off the stove (normally 6”) go with a 6” liner. However, if it’s 8” and the flue size will allow for an 8” liner you can use 8" pipe.

If your flue is only 8” x 8” there are 2 options:
1. Drop down to a 6” liner (which means using a 6 to 8 increaser) and should be insulated with 1/4” insulation kit.
2. Remove the terra-cotta tiles from the chimney and install 8” liner with insulation kit.

Q. Do I have to insulate my chimney liner?

According to codes you are supposed to insulate with insulation blanket or pour down insulation. Insulation keeps the pipe warm and promotes a good draft. If the pipe gets cold warm flue gases will meet the cold metal pipe and form condensation. When the gases meet with the condensation it can create a creosote build-up or an acidic build-up.