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Biomass factory-built chimney and vent intended for use with Biomass fuel appliances approved for Type L low-temperature venting systems in accordance with “Standard for Chimneys, Fireplaces, Vents, and Solid-Fuel Burning Appliances,” NFPA 211, and the International Mechanical Code.
Biomass Chimney features a corrosion-resistant 430 stainless flue and galvanized steel casing designed to operate in highly corrosive biofuel applications. Our cutting-edge positive twist-lock design, locking tabs, and rope gasket at each joint, prevent fly ash leakage and reduce installation time.
| Application | For use with wood, pellet, coal, oil and gas-fired appliances. |
| Listings/Standards | NFPA 211 UL 641 |
| Construction | Stainless Steel |
| Diameters | 5.5" |
| Height | 6.5" |
| Width | 10" |
| Color | Silver |

Clearance from single-wall connectors to combustible material shall be in accordance with NPFA 211 as shown in the table below.

Notes:
Clearance between flex liner and masonry and between masonry and combustibles is as shown in the following table:


The Metal-Fab Type “L” Bio-Mass factory-built chimneys, when installed according to manufacturer’s instructions, as prescribed by Underwriters Laboratories Standard 641, and when properly and regularly cleaned and maintained as set forth below, are warranted by Metal-Fab Inc. under normal residential use against substantial defects in material or workmanship of the product for parts only for as long as the original consumer owns the chimney system. This Warranty does not cover normal wear and tear, smoke damage, or damage caused by chimney fires, or any Product that was: (1) purchased other than from an authorized Metal-Fab dealer, retailer, or distributor; (2) modified or altered; (3) improperly serviced, inspected or cleaned; or (4) subject to negligence or any use not in accordance with the printed materials provided with the Product as determined by Metal-Fab. During the first ten years of the warranty, Metal-Fab will provide replacement chimney lengths at no charge. During the balance of the warranty, Metal-Fab will provide replacement chimney lengths at 50% of the current retail price in effect at the time of the warranty claim. The defective part(s) must be returned with all transportation charges prepaid by the owner to the Customer Service Department, Metal-Fab Inc., 3025 May Avenue, Wichita, Kansas 67213. Metal-Fab Inc. will in turn ship the repaired or replacement part to the owner, and freight collect, with the owner to be responsible for all freight charges. This warranty does not cover any labor or other service charges incurred by the owner, or any parts not manufactured by Metal-Fab Inc. This warranty may not be extended or modified by our agents or representatives.
It is the OWNER’S RESPONSIBILITY to establish:
The following shall be applicable to those products of Metal-Fab Inc. described above:
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