Co-Linear Gas Chimney Liner System

The Co-Linear Chimney Liner Kits include stainless steel liners two stainless steel liners to be used with the Co-Linear cap. One liner will be used for the gas exhaust and the other will be used as fresh air intake. If your gas stove or insert requires a Co-Linear chimney liner kit to be installed inside a masonry fireplace, we offer the best selection of high quality kits for an easy installation.

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Co-Linear Terra-Cotta Mount Chimney Cap and Liner Kit

From$529.99

Co-Linear Terra-Cotta Mount Chimney Cap and Liner Kit

Are you in need of an extremely easy way to attach your Co-Linear Chimney Cap to your clay chimney flue tile? If so, the Terra-Cotta Mount Co-Linear Chimney Cap is a perfect choice for you. Our Co-Linear Chimney Caps are perfect for gas or pellet stoves and fireplace inserts. This... Read More

Co-Linear Chimney Cap and Liner Kit

From$494.99

Co-Linear Chimney Cap and Liner Kit

Crown Mount Co-Linear Chimney Caps are the best option for venting a gas or pellet fireplace insert or stove in a masonry chimney. This unique chimney cap can accommodate the exhaust as well as the fresh air intake. No need to cut a hole in the side of the home,... Read More

Co-Linear High Wind Chimney Cap and Liner Kit

From$729.99

Co-Linear High Wind Chimney Cap and Liner Kit

The Crown Mount High Wind Co-Linear Chimney Caps are the best option for venting a gas or pellet fireplace insert or stove into a masonry chimney in a windy area. If you currently experience high winds blowing your pilot light out, the High Wind Co-Linear Chimney Cap is ideal for... Read More

Co-Axial to Co-Linear Appliance Adapter

$212.99

Co-Axial to Co-Linear Appliance Adapter

The Co-Axial To Co-Linear Appliance Adapter is used to transition a direct vent gas fireplace with a 4" inner and 6 5/8" outer exhaust hole to a co-linear 3" exhaust and 3" air intake venting system. This is great for when you want to install a direct vent gas fireplace... Read More

Co-Linear Terra Cotta Mount Chimney Cap

From$285.99

Co-Linear Terra Cotta Mount Chimney Cap

The Terra Cotta Mount Co-Linear Chimney Caps are perfect for venting gas or pellet stoves and fireplace inserts. This kind of cap allows you to pull the fresh air required for combustion from the chimney cap while also running a separate liner for the exhaust. No need to cut through... Read More

Co-Linear High Wind Chimney Cap

From$316.99

Co-Linear High Wind Chimney Cap

The Crown Mount High Wind Co-Linear Chimney Caps are the best option for venting a gas or pellet fireplace insert or stove into a masonry chimney in a windy area. If you currently experience high winds blowing your pilot light out the High Wind Co-Linear Chimney Cap is ideal for... Read More

Co-Linear Crown Mount Chimney Cap

From$240.99

Co-Linear Crown Mount Chimney Cap

Crown Mount Co-Linear Chimney Caps are the premier option for venting a gas or pellet fireplace insert or stove in a masonry chimney. This unique chimney cap can accommodate the exhaust as well as the fresh air intake (liners sold separately). Simply utilize the chimney for all your fresh air... Read More

Learn About Co-Linear Gas Chimney Liner System

Our high-quality stainless steel Co-Linear Chimney Liner Kits are offered in three mounting styles: flat, terra cotta, and high wind. Choose which style best fits your needs along with any optional accessories you may need to complete the job such as silicone, fresh air intake adapter, and stove connections. We include all the options right on each page for ease of ordering. As always, if you have questions about your particular installation, please give us a call and a Certified Technician will be happy to assist you.

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Our 316Ti flexible chimney liner and chimney liner components have passed the rigorous testing at the Underwriters Laboratories with best in class status and are UL Listed. So if you are looking for UL listed chimney liner sold directly to homeowners, then look no further than Rockford Chimney

Customer Testimonials

Back in July you gave me excellent advice re. sizing/purchasing a flue liner for the chimney associated with my wood stove. I'd like to thank you once agai... More

—AE Northfield, MN

A few weeks ago I ordered a chimney liner system for my fireplace insert. Your salesman recommended the liner system plus the insulating blanket. I just wa... More

—AH Happy customer

Just got around to installing my new smooth flexible liner and deluxe terra cotta cap (wow). The quality of your product is second to none. Very pleased an... More

—B.B. from Massachusetts

Thanks so much for the great tech service from Dennis, very knowledgable, friendly and proffessional.Your website is the best, beats your competition by fa... More

—Bill in Knoxville

Sue and Dennis, I received the final part of my order yesterday (the chimney cap that actually fits over the chimney chase). It looks wonderfu... More

—CC, VA

Hello, I was shopping for an fireplace insert and called RCS to ask why they were so much cheaper than my local guy, the reply was " we sell thousand of th... More

—Chris, PA.