DuraVent Warranty Requirements
1.	To be covered under the limited lifetime warranty your DuraVent Chimney Liner must be installed by a certified solid fuel installer. DuraVent defines a professional installer as one of the following; licensed contractors with prior chimney installation experience, CSIA Certified Chimney Sweeps, NFI Certified Specialists, or WETT Certified Professionals. DuraVent's warranty does not cover do-it-yourself or homeowner installations of any kind, and this will immediately void your warranty..
2.	The Limited warranty warrants that the product will be free from defects in material or manufacturing, if properly installed, maintained, and used.
3.	The warranty is transferrable from the original homeowner to a buyer of the home.
4.	This warranty does NOT cover normal wear and tear, smoke damage, or damage caused by chimney fires, or acts of God.
5.	This warranty does not cover if the product was purchased other than from an authorized DuraVent dealer, retailer, or distributor.
6.	The warranty does not cover if the product was modified or altered in any way, improperly serviced, inspected, or clean or subject to negligence or any use not in accordance with the installation instructions provided.
7.	Limited Lifetime: DuraVent provides the following warranties for its products: One Hundred Percent (100%) MSRP 15 years from the date of purchase, and Fifty Percent (50%) thereafter.
8.	All warranty obligations of DuraVent shall be limited to repair or replacement of the defective product pursuant to the terms and conditions applicable to each product line. These remedies shall constitute DuraVent’s sole obligation and sole remedy under this warranty. This warranty provides no cash surrender value.
9.	Corn, bio-fuels, driftwood or other wood containing salt, preservative-treated lumber, plastic and household trash or garbage, or wood pellets containing such materials must not be burned in the appliance or fireplace. In case of a chimney fire, the chimney must be inspected and approved by a certified Chimney Sweep before reuse. After each annual inspection, maintenance, and cleaning, the certified Chimney Sweep must fill out and date the appropriate section of the warranty card provided with the chimney liner.
10.	DuraVent provides no warranty if the products are not installed by a qualified professional installer. For purposes of this warranty, a trained professional installer is defined as one of the following: licensed contractors with prior chimney installation experience, CSIA Certified Chimney Sweeps, NFI Certified Specialists, or WETT Certified Professionals.
11.	DuraVent must be notified and given the opportunity to inspect defective product prior to replacement under the terms of this limited lifetime warranty. All warranty claims must be submitted with proof of purchase. Labor and installation costs are not covered under this warranty.
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DuraVent Relining Systems

DuraVent was the first to market with new innovations in venting systems. DuraVent has captured a leadership position in these emerging markets. With Scientifically proven materials and engineering DuraVent products are one of the leaders in professional quality venting products. They are committed to providing the industry with cutting edge products that meet the demands of toy's heating product market.

DuraVent offers a Limited Lifetime Warranty on their relining products that is covered ONLY if installed by a professional Installer. DuraVent defines a professional installer as one of the following; licensed contractors with prior chimney installation experience, CSIA Certified Chimney Sweeps, NFI Certified Specialists, or WETT Certified Professionals. DuraVent's warranty does not cover do-it-yourself or homeowner installations of any kind, and this will immediately void your warranty. For do-it-yourself installations please see Lifetime Chimney Liners to accommodate your needs.

What is a Limited Lifetime Warranty? DuraVent provides the following warranties for its products: One Hundred Percent (100%) MSRP 15 years from the date of purchase, and Fifty Percent (50%) thereafter when installed by a professional certified solid fuel installer as depicted above.

• DuraLiner

DuraLiner is a high-temperature, insulated double-wall masonry relining system for use with appliances fueled by gas, pellet, oil, wood, or coal. It safely protects masonry chimneys from the damaging effects of flue product condensation. Made of .016" 304 Stainless Steel inner liner, and galvalume outer wall.

• DuraFlexAL

DuraFlexAL is made of single wall .010" aluminum Listed to UL1777 and ULC S635 Standards. DuraFlexAL is an aluminum flexible relining system for masonry chimneys. Use with Natural gas, or liquid propane category 1, draft hood equipped appliances, and applications tested and listed to use Type B Gas Vent only. For use with natural gas fireplaces, gas fired furnaces, boilers, water heaters, and wall or space heating applications. Not for use with any other fuel types.

• DuraFlexSS

DuraFlexSS Pro is a flexible steel liner for strength and flexibility. Its extreme flexibility facilitates problem free installations where multiple offsets are needed. DuraFlex Pro is manufactured utilizing highly corrosion resistant 316 Stainless Steel. Listed to UL 1777 and ULC S635.

• DuraFlexSS SW

DuraFlexSS SW is a smooth inner-wall, flexible stainless-steel chimney liner. The smooth inner wall provides for no output reduction allowing for full appliance efficiency. Smooth wall construction eliminates ridges that restrict flue gas flow and collect deposits. The lack of ridges facilitates cleaning and maintenance. DuraFlex SW is ideal for relining masonry chimney for wood and gas burning appliances. Listed to UL 1777 standards

• DuraFlex 316 & 304

DuraFlex 304 and 316 are lighter, more economical liners. Excellent when there are minimal offsets in the chimney. DuraFlex 304SS and 316SS are intended for wood burning, non-condensing gas and oil-fired appliances. Where greater corrosion resistance is desired, such as coal-fired appliances, DuraFlex 316 is recommended. DuraFlex 304SS and 316SS are listed to UL 1777 and ULC S635.

Attention: Always consult your appliance manual, as well as your local building codes office to insure proper installation of any fuel burning appliance. All installations must be done in accordance with written instructions and local building and zoning laws.