{"product_id":"ao-smith-100223775-pvc-common-vent-kit-cyclone-300-400-500","title":"Ao Smith 100223775 Pvc Common Vent Kit Cyclone 300 400 500","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AO SMITH 100223775 is a PVC common vent kit designed for use with Cyclone MXi condensing water heaters. Supplied by DuraVent, this kit enables two Cyclone MXi units to share a single direct vent system through a side wall horizontal termination. The kit includes a backflow preventer along with intake and exhaust adapters. Piping and wall termination components are field supplied. Each wall penetration requires a 7-inch hole through the structure. The kit is UL listed and supports a maximum equivalent vent run of 50 feet of straight pipe including elbows.\u003c\/p\u003e\n\u003cp\u003eThis common vent kit is intended for residential and light commercial installations where two Cyclone MXi water heaters are installed in close proximity and a shared horizontal venting configuration is preferred. The kit is approved for side wall horizontal vent applications only and is limited to direct vent configurations. One kit is required per water heater. Installers must select the appropriate material, PVC or polypropylene, based on model input size requirements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eUL listed for safe, code-compliant common vent installations\u003c\/li\u003e\n  \u003cli\u003eIncludes backflow preventer, intake adapter, and exhaust adapter\u003c\/li\u003e\n  \u003cli\u003eSupports up to 50 feet maximum equivalent length of common vent pipe and elbows\u003c\/li\u003e\n  \u003cli\u003eApproved for side wall horizontal vent terminations only\u003c\/li\u003e\n  \u003cli\u003eSupports a maximum of two water heaters on a single common vent system\u003c\/li\u003e\n  \u003cli\u003eRequires a 7-inch wall penetration at each vent termination point\u003c\/li\u003e\n  \u003cli\u003eDirect vent configuration only; piping and termination are field supplied\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eApproved for use with AO SMITH Cyclone MXi 300, 400, and 500 series condensing water heaters in a direct vent, side wall horizontal configuration only.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or qualified water heater technician familiar with direct vent system requirements. Shut off the water heater and disconnect power or gas supply before beginning any venting work. Each wall penetration requires a 7-inch hole; verify structural clearances and local mechanical code requirements before cutting. Piping, fittings, and wall termination hardware are not included and must be sourced separately per the job design.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVent Configuration\u003c\/strong\u003e: Direct vent, side wall horizontal only\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Equivalent Vent Length\u003c\/strong\u003e: 50 feet (straight pipe and elbows combined)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWall Penetration Diameter Required\u003c\/strong\u003e: 7 inches per penetration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Water Heaters Per Common Vent\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKits Required\u003c\/strong\u003e: One per water heater\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKit Contents\u003c\/strong\u003e: Backflow preventer, intake adapter, exhaust adapter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eListing\u003c\/strong\u003e: UL listed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Models\u003c\/strong\u003e: Cyclone MXi 300, 400, 500\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AO SMITH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 100223775\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TAILWIND","offers":[{"title":"Default Title","offer_id":51149953696050,"sku":"100223775","price":364.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305990241.jpg?v=1778603160","url":"https:\/\/voomisupply.com\/products\/ao-smith-100223775-pvc-common-vent-kit-cyclone-300-400-500","provider":"Voomi Supply","version":"1.0","type":"link"}