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• <br /> Schnackel <br /> engineers <br /> September 19,2013 <br /> Marian County Building Department <br /> Attn.Jim Trussell <br /> PO Box 14500 <br /> Salem,OR 97309 <br /> RE: Project Name: The Rock Salem <br /> Schnackel Project No.: 130169 <br /> Dear Mr.Trussell: <br /> In regards to the Wood Stone pizza oven venting,vents were installed per NFPA 96. Duct construction <br /> consists of 16 gage continuous externally welded joints with double layer fire wrap. Wood Stone <br /> literature states building heating appliance chimney rated to a minimum of 450 degree Fahrenheit <br /> shall be used. <br /> Low heat solid fuel appliance definition in NFPA 211 states solid fuel appliance having a continuous <br /> flue temperature of 1000 degree Fahrenheit or less. NFPA 211 requires a minimum thickness of 16 <br /> gage sheet steel for low heat non-residential chimneys equal to or less than 14 inches in diameter. <br /> Upon further review of NFPA 211,I feel the installation of the pizza oven venting meets the intent of <br /> NFPA 211. <br /> If you have any questions,please let me know. <br /> Sincerely, <br /> PRUfFBf/O <br /> ♦ 1N <br /> We l� F� y <br /> Gregory R.Schnackel,P.E. a 9 <br /> 1En Enginee <br /> rs,g ,Inc. <br /> 3035 South 72n°Street 1%4, #4 1e t$♦G4, <br /> Omaha,NE 68124 Phn_ne: 402 391 7488 6OArROY StH�pq_�-/3 <br /> Fax: 402-391-7488 <br /> Mobile: 402-598-7685 <br /> Toll Free: 800-581-0963 <br /> L Schnackel Engineers,Inc. <br /> 3035 South 72nd Street <br /> Omaha,Nebraska 68124 <br /> Phone:402391-7680 a Vax:402-391- %.88 IN Toll Free:l 800.551-0063 www.schnackekcom <br />