Advice on doing your own chimney relining

A majority of homeowners may not realize that lining is one of the most vital parts of a chimney and it isn’t the cheapest if replacement is required. Which is why so many homeowners will make the decision to replace the chimney’s lining in their latest do-it-yourself project.

But before having to deal with the costs of buying a new flue, there are a lot of tips to keep in mind for the different types of liners that can be purchased and tips for how to install them.

But what is a chimney relining?

A liner is needed for being able to channel the heat and gases up the chimney’s top while preventing the heat from allowing combustible materials to spark a fire. Because most liners will wear out over time, they can become very dangerous hazards for the fireplace in your home — signs for a needed replacement is finding cracks and crumbling within the lining.

Usually a professional will advise whether replacement is needed and can show you a live image of the damage thanks to special camera equipment used to inspect the inside of the chimneys. If replacement is needed, the chimney will need a new flue liner and it is very likely in an older home — in fact there’s a chance the chimney might not have any type of liner at all.

Clay tile liners — These are considered the least expensive liner option and are favored by many homeowners because they are able to stand up to high heat and corrosive deposits that come from burning fuels. These will wear out eventually and are best installed when the chimney is built, with replacement requiring a lot of labor that creates more cost unless doing it yourself.

Metal flue liners — While they are a little more expensive than clay tiles, stainless steel liners are recommended for being able to provide the best protection against fire. They also come with a lifetime warranty. There are also other types of metal liners that aren’t as dependable, with stainless steel coming with flexible and durable styles. While the installation makes it costly, the metal liners are considered a quality investment.

Tips for safe relining

With everything above taken into consideration, a novice home improvement aficionado is able to complete a chimney relining project with simple steps to follow — all of which are based on tips and opinions from the professionals in the field. Even if you have a professional contractor providing advice, there should still be consideration for safe chimney relining at all time.

Compliance to city, state and national codes

One of the first things that needs to be done before any chimney relining project is to make sure you check with all of the codes that will be needed to follow on all levels — city, state and national — that are involved with your project. Based on where you live, these codes could vary on what is required to maintain a chimney and the proper way to install and replace liners.

Follow all installation instructions

When it comes to installing a chimney’s support box or cap, there are always directions that need to be followed to help guide you in how to get the job done safely and without creating any fire hazards down the road. Now if your supplies do not come with any printed instructions, they should be available online in some form through the Internet — it just requires a little bit of searching.

Clean and inspect your chimney

This should go without saying, but you have to make sure the chimney is cleaned and inspected for safety before beginning any form of chimney relining. These inspections should be done by a certified chimney sweep who can help assure that your chimney’s masonry, mortar and other parts are extremely reliable and won’t pose any immediate threats of creating a dangerous fire.

Chimneys for wood-burning appliances

Sometimes an installation for those chimney relining projects won’t require any type of clearance with everything between combustible materials and the chimney’s masonry. This is usually the case when it comes to consider wood-burning appliances. It’s important that the liner installed will meet any of these requirements.

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