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High Efficiency Gas/Oil Liners

AL29-4C flexible stainelss steel liner kits are specified for use in high efficiency furnace and venting designs (typically 86% or greater efficiency). AL29-4C is a stainless steel alloy designed for extreme resistance to corrosion which makes it an ideal choice for venting high efficiency furnaces and boilers, corn, oil, and gas burning appliances.

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Chimney Liners Accessories and Adapters

Chimney Liners Accessories and Adapters

Learn About High Efficiency Gas/Oil Liners

Typical Use & Summary:

  • Used with specified high efficiency furnaces and venting designs - typically 86% or greater efficiency
  • Ideal choice for relining masonry chimneys venting high efficiency furnaces and boilers burning corn, oil, or gas
  • AL29-4C stainless steel alloy is extremely resistant to corrosion
  • Check your high-efficiency appliance's manual to see if AL29-4C is required when relining your masonry chimney

You Might be Looking For:

  • Rock-Flex Stainless Steel Flex Liner Kit - Fabricated with 316 grade stainless steel and used to reline chimneys venting lower efficient appliances such as furnaces, boilers, wood stoves, gas stoves, and more.

Chimney Liners Accessories and Adapters

Use our Chimney Liner Adapters to assist in your installation and our Chimney Liner Accessories after installation when cleaning, inspection, and fire starters are needed. Even our Adapters and Accessories ship free to your door!

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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.
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