US Chimney Corp Limited Lifetime Warranty for stainless steel relining pipes for wood, coal, oil, and category I gas appliance applications. Must be cleaned and inspected by US Chimney Limited Warranty Coverage US Chimney Corp warrants to you (the “Purchaser”) that for the period set forth below, the double wall stainless steel liner installed by US Chimney Corp shall be free from defects in material or manufacturer’s workmanship. Warranty Term - The benefits of this warranty shall apply to you (the “Purchaser”) for your lifetime, provided that you continue to own your home where the US Chimney Liner is installed. In all events, even if you sell your home, US Chimney will honor the warranty for a period of 10 years from the date of purchase so that even a new owner will benefit from any years remaining at the time you sell your home. Warranty Conditions - The US Chimney Corp warranty is subject to the following conditions: use of this pipe for venting gas appliances is limited to Category I appliances; the Liner/Chimney Flue must be cleaned and inspected on an annual basis by an experienced chimney professional, (i.e., at intervals of no more than 12 months each, commencing from the date of purchase). Yearly maintenance receipts for proof of service will be required at the time of warranty work. Corrosive chemical chimney cleaners must not be used; driftwood, wood, or wood pellets containing salt, preservative treated lumber, plastic, and household trash must not be burned in the appliance. Chimney Lining Resources - Your chimney may need relining if one or more of the following are true: Your chimney was built without a liner. Your current chimney liner is cracked or damaged. You are changing the usage of the chimney. You wish to upgrade to modern safety standards. Many options exist for chimney relining, the three primary methods are: Clay Flue Tile Replacement- Ceramic clay flue tiles are most commonly found in chimneys venting an open, wood burning fireplace. Many times the chimney contains a second or even third flue which is frequently used to vent the furnace and water tank. Clay tiles come in a variety of square, rectangular, and round configurations and stand 24 inches tall. They are stacked on top of each other inside the chimney and must be given space to expand and contract between the brick walls of the chimney. Often, the damage to these flues is contained in the top 2 or 3 sections making replacement relatively easy and inexpensive. However, a chimney fire or other thermo generated shock may cause the liner to crack much lower in the chimney. If this is the case it often makes more sense to install a factory built and warranted stainless steel liner or a complete cast in place system. Factory Built Stainless Steel Chimney Liners - Factory built chimneys are currently the standard in new construction. Double wall galvanized chimneys, Type-B vents, have been used for decades with gas fired boilers and furnaces. This type of pipe is also used for direct vent gas fireplace. Stainless steel chimney components are frequently used to vent wood burning fireplaces and stoves in addition to oil fired furnaces and boilers. Lighter weight Stainless Steel components can be used for high efficiency gas furnaces and water tanks. These liners are inexpensive and often required when venting gas appliances into a masonry chimney. Your chimney was built without a liner A single wall brick chimney is extremely hazardous. The purpose of a liner is to protect the house from heat transfer to combustibles. An unlined chimney allows enough heat to transfer through and ignite wood structures in just a few hours. Liners also protect the chimney structure from the corrosive byproducts of combustion. If the flue gases penetrate to the brick and mortar the usable life of the chimney decreases. Flue gases are acidic and literally eat away at the mortar joints from inside the chimney. Heat transfers more rapidly to the nearby combustibles and dangerous gases such as carbon monoxide can leak into the living areas of the home. Liners allow for a correctly sized flue, improving the performance and safety of the appliance being vented. An under or over sized liner can allow the production of carbon monoxide which then leaks into the structure. Your current chimney liner is cracked or damaged. Your current liner could be damaged due to incorrect sizing, lack of cleaning, thermo shock, chimney fire, or just general deterioration from acidic flue gases. Just as a car muffler needs periodic replacement, so does your chimney liner. Your flue should be visually inspect at least once per year by an equipped and experienced professional. If there is any reason to suspect cracked or damaged liners this should be confirmed by a video camera inspection of the entire flue.