Type B Gas Vent - duravent.com

1 Type B Gas Vent Type B gas venting system. UL 441 and ULC S605. DuraFlex AL. Aluminum flexible relining . UL 1777 & ULC S635. Specifications UL 441 and ULC S605 System Applications Type B Gas Vent DuraVent's Type B Gas Vent system. DuraVent's innovative system for a lock-tight connection for Type B. Use with natural gas or liquid propane Gas Vent called DuraLock. See the alignment indicators meet; feel category I and draft hood equipped the ends grasp together; hear the snap as the connection firmly appliances, and appliances tested and listed to use Type B Gas Vent. locks into place. (See next page.). Applications include: natural gas fireplaces, gas-fired furnaces, boilers, DuraVent Type B Gas Vent is designed to meet the rugged water heaters, and wall or space demands of the job site. The inner wall is recessed to eliminate heating applications. damage in handling. Materials and Construction Type B Gas Vent has been engineered to heat up rapidly.

2 It Round Type B Gas Vent 3 - 8 and oval 4 - 6 : Aluminum .012 inner wall, remains hot during the operation of the appliance with minimal galvanized .018 outer wall. condensation in the appliance and vent system. Pipe lengths Round Type B Gas Vent 10 - 16 : are available in multiple lengths, 6 to 60 inches, with a full Aluminum .016 inner wall, galvanized complement of adjustable and rigid fittings..021 outer wall. Round Type B Gas Vent 18 - 30 : Type B gas vents are not suitable for use with wood-burning or aluminum .020 inner wall, galvanized .021 outer wall. coal applications, industrial ovens, exhaust ranges and hoods, 3 -16 diameters feature twist-lock grease or pollution ducting, or as free-standing exhaust vents for fittings, screws required for 14 and high-temperature applications. larger diameters. Clearances 1 clearance to combustibles in single and multi-family dwellings. Diameters 3 - 30 Round Diameter.

3 4 , 5 , and 6 Oval. Listings UL Listed to UL 441 and UL 1777. (MH6357). ULC Listed to ULC S605 (CMH1276 &. CMH1407). 240 DuraVent | c-UL-us 441 System Specifications DuraConnect II DuraConnect II. Double-wall connector pipe, UL approved as a Type B Gas Vent Materials and Construction segment, for use in conditioned and unconditioned attics and .010 Double-wall aluminum flex inner crawl spaces. (Not to be enclosed and cannot penetrate through wall (two-ply .005 ), .018 galvalume outer wall, with twist-lock connections. walls, floors, or ceilings.) DuraVent's DuraConnect II is known as the Contractor s Choice for its ease of installation and durability. Clearances 1 to combustibles. DuraConnect II's heavy-duty construction features precision twist- lock connection, which provides ease of assembly or disassembly Diameters without damage to the product. 3" - 6". The double-wall flexible vent is certified as having the equivalent Listings thermal properties as Type B Gas Vent and can be used when a c-UL-us Listed to UL 441 and ULC/.

4 ORD-C441 (MH14089). Type B Gas Vent double-wall connector is required. UL 1777 & ULC S635 System DuraFlex AL. DuraFlex AL Applications An economical venting system used for relining masonry chimney DuraFlex AL (DFAL) aluminum flexible relining for masonry chimney. Use with for natural gas or liquid propane category I, draft hood equipped natural gas or liquid propane category appliances, and appliances tested and listed to use Type B Gas Vent I, draft hood equipped appliances, and for a wide range of applications, including: natural gas fireplaces, appliances tested and listed to use Type gas-fired furnaces, boilers, water heaters, and wall or space heating B Gas Vent. Applications include: natural applications. Protects the masonry chimney from damaging effects gas fireplaces, gas-fired furnaces, boilers, of flue product condensation. water heaters, and wall or space heating applications.

5 Materials and Construction 010 aluminum (2-ply of .005 ). Clearances 0 clearance to masonry. Diameters 3 , 4 , 5 , 5 , 6 , 7 , and 8 . Listings Listed to UL 1777 and ULC S635. 800-835-4429 | DuraVent 241. What makes us different from the rest? DuraVent's Type B Gas Vent: A completely engineered system. No sharp tabs to bend into slots. Twist locks into place. Designed to meet the rugged demands of the job site with a recessed inner wall Innovative system for a firm, lock- tight connection Remains hot during operation with minimal condensation Engineered to heat-up rapidly. Limited Lifetime Warranty Features Benefits Features Benefits Available in Round and Oval Availability of two pipe shapes Swivel Tees and Elbows Elbows swivel 360 at base providing allows installers to select appropriate the flexibility to offset obstructions pipe for space needs. Oval pipe is as needed. Branches of tees and manufactured to fit into standard stud bases of elbows swivel allowing part walls, allowing for reduction of total to be properly lined up after being area needed for installation.

6 Connected to pipe sections. Saves time and money on installation. Twist locks into place No sharp tabs to bend into slots. Easy installation with no mechanical Aluminum inner pipe Aluminum inner pipe heats up faster. fasteners required. Remains hot during operation and eliminates condensation in the Firm, lock-tight connection DuraVent's innovative system appliance and vent system. DuraLock allows for a lock-tight connection. See the alignment Double-Wall Wye-45 Branch Can be used in place of tees to indicators meet; feel the ends grasp provide a 45 angle instead of 90 . together; hear the snap as the Branch swivels on male end for connection firmly locks into place. better alignment for a 45 offset or combining connectors from two or Engineered to heat-up Type B Gas Vent remains hot during more appliances into a common vent. rapidly. the operation of the appliance with minimal condensation in the Universal B-Vent to Connects DuraFlex Aluminum flex appliance and vent system.

7 Aluminum Flex Adapter to any brand of B-vent, allowing installers to reline a masonry chimney Pipe lengths are available in Gives the installer the greatest variety without needing to replace the multiple lengths 6 -60 . of lengths to reach the desired height existing B-vent connector to the with ease and least amount of pipe appliance, saving the installer time sections. and the homeowner money. Limited Lifetime Warranty The best Warranty in the industry. 15 years 100%, 15 years and up 50%. Gives the installer and homeowner the greatest peace of mind in a quality installation. Made in USA 100% manufactured in USA. Round Gas Vent | Type B Gas Vent Typical Installations Installation Key 1 1 1 DuraCap 14 Increaser 3. 2 Storm Collar 15 Draft Hood Connector 3. 2. 2. 3 Roof Flashing 16 Square Firestop Support 4 High-Wind Cap 17 Oval Pipe 18. 17. 5 Round Pipe 18 Oval to Round Adapter 24 22.

8 6 Elbow 19 Oval Tee 13 7 Tee 20 Oval Tee Cap 10. 25. 8 Tee Cap 21 Oval Tee Support 6. 5 20 22. 9 Increaser Tee 22 Oval Firestop Spacer 6. 19 10 Female Flex Adapter 23 DuraConnect II. 5 21. 15 11 Male Adapter 24 DuraFlex AL Length 15 12 Double-Wall Wye 25 DuraFlex Motar Sleeve 13 Pipe Collar 26 DuraFlex AL Coupling Furnace To Masonry Furnace To Oval Type B Gas Vent 4 Refer to our Typical Venting Installation drawings to select the appropriate component 1 parts for your installation. 3. 3. 2 2. 7. DuraCap Vent Cap 5 14. 99 Storm Collar 5. Flashing 16. Round Pipe 24. 8 11. Attic Insulation Shield 15. 6. Square Firestop Support 26. Double Wall Wye DuraConnect Flex Connector Multi-Story Gas Insert To Masonry 4. 1 45 /60 Adjustable Elbow 3. 3. 2. 2. Draft Hood Connector 23. 5. 7 5. 15 8. 8 7. 9 6. Attic Furnace 15. 15. Type B Gas Vent Manifold 800-835-4429 | DuraVent 243. Type B Gas Vent | Round Gas Vent How Size and Height Affect The amount of heat the vent gases lose as they flow determines how much condensation will occur and how strong the draft Stove Performance will be.

9 To control the heat losses, proper selection of venting materials is of vital importance. Double-wall Type B Gas Vent, with an aluminum inner wall and a galvanized steel outer wall, has proven to be the ideal choice in venting materials. Vent Termination Chart Using listed Type B Gas Vent caps may terminate in accordance with this table. Minimum Height Roof Pitch Feet Meters Flat to 7/12 1 Over 7/12 to 8/12 Over 8/12 to 9/12 2 Over 9/12 to 10/12 Over 10/12 to 11/12 Over 11/12 to 12/12 4 Over 12/12 to 14/12 5 Over 14/12 to 16/12 6 Over 16/12 to 18/12 7 Over 18/12 to 20/12 Over 20/12 to 21/12 8 Gas Vent Specification Chart Maximum Locking UL ULC NOTES. Item Clearances Outer Tube Materials Device Listing Listing Height Type B Vent Inner - .012" Aluminum 1. Clearance to combustibles is 1 inch to combustibles 100 feet 5 8" larger than ID DuraLock MH6357 CMH1276. Round 3"-8" Outer - .018" Galvanized the air space between vent and Round 10" to 16" Inner.

10 016" Aluminum TwistLock combustibles. 1 inch to combustibles 100 feet 1" larger than ID MH6357 CMH1276. See note 2 Outer - .021" Galvanized Screws 2" larger than ID Inner - .020" Aluminum 2. Maximum height varies with Round 18" to 30" 1 inch to combustibles 100 feet Screws MH6357 CMH1276 equipment over 50', for taller See note 5 Outer - .021" Galvanized Oval Type B Vent 2" x 4" & 2" x 6" stud wall 2 1 2" x 7 1 4" Inner - .012" Aluminum Button applications refer to SDV sizing See Note 3 MH6357 CMH1276 handbook (L202). 14"-16" Pipe 4" and 5" and 1 inch to combustibles 3 1 8" x 10 7 8" Outer - .018" Galvanized Lock Oval Type B Vent 2" x 6" stud wall and 1 inch Inner - .012" Aluminum Button require screws. See Note 3 3 1 4" x 12" MH6357 CMH1276. 6" to combustibles Outer - .018" Galvanized Lock 3. When oval is used on wall Type B Vent 3" to 6" Inner - .012" Aluminum MH14420 furnaces, minimum height required 0"/Masonry 50 feet 5 8" larger than ID DuraLock CMH1407.