B Vent Wall Thimble Installation

B vent will slide through the middle as it passes through the wall. C it provides the required firestop as well as support. Cut a hole in the outside wall 1 4 larger than the diameter of the sleeve on wall thimble mpt.

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B vent wall thimble installation. Polypro double wall installation instructions fr pdf 1 8mb polypro for multiple vents dual language pdf 472kb. It will also provide lateral support for the pipe as it lays horizontally inside the thimble. Using a wall band assures that the clearance to combustibles is maintained see figure 3. Completely frame in on all four sides a properly sized square opening.

Adjusts from 3 to 6 to accommodate various wall thicknesses. B vent wall thimble use for through the wall system to provide clearances for vent from combustibles. It is of the utmost importance that type b gas vent be installed. B it allows disconnection of the appliance for service at any time without disturbing or temporarily supporting the vent.

We have other components that are used to safely support and or firestop the pipe as it passes up through a ceiling. Install the wall thimble by inserting the larger of the two parts on the appliance side and the. Type b gas vent 3 to 12 diameter installation instructions 5 a it allows installation of the vent system prior to installation of appliances. One of the fire safety features of double wall type b gas vent is that its outer wall insulated by the airspace beneath it requires only 1 clearance to combustible material in the structure.

See local codes for guidelines. Type b gas vent. D it is ul. Page 2 a major cause of vent related fires is failure to maintain required clearances air spaces to combustible materials.

Duravent 4 inner diameter type b round gas vent pipe double wall 6 male adapter. 4 inch round gas vent collection. Duravent 4 inner diameter type b round gas vent pipe double wall wall thimble. Type b gas vent bucket support ceiling bucket connector 8 x 1 2 sheet metal screw through each leg amerivent type b gas vent or amerivent vent connector 4 amerivent round and oval gas vent installation instructions installation using amerivent bucket without hangers 1.

The b vent then fastening to the wall. Amerivent is a complete gas venting system from 3 to 30 pipe diameters in 7 different pipe lengths to single to multi appliance hook ups. Page 1 installation instructions round and oval type b gasvent systems for use with natural as or liquid propane category i and draft hood equipped appliances and appliances listed to use type b gas vent. Larger diameter wall thimbles are field fabricated.