{"product_id":"3-stainless-steel-horizontal-vent-kit-with-2-5-in-adapter","title":"Eccotemp 3\" Stainless Steel Horizontal Vent Kit with 2.5 in Adapter - 1779686052177_313","description":"\u003ch2\u003eEccotemp 3\" Stainless Steel Horizontal Vent Kit with 2.5 in Adapter - 1779686052177_313\u003c\/h2\u003e\n\u003cp\u003e3\" Single walled Horizontal Stainless Steel Vent Kit with 2.5\" to 3\" Paloma Adapter for i12 and FVi12 Series Tankless Water Heaters. \u003cspan\u003e\u003cspan class=\"ui-provider ee bms bmt bmu bmv bmw bmx bmy bmz bna bnb bnc bnd bne bnf bng bnh bni bnj bnk bnl bnm bnn bno bnp bnq bnr bns bnt bnu bnv bnw bnx bny bnz\" dir=\"ltr\"\u003eYou may need to purchase additional Eccotemp straight pipe.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eIncludes \u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e(1) 3\" x 12\" Straight Pipe\u003c\/li\u003e\n\u003cli\u003e(1) 3\" x 90 Degree Elbow\u003c\/li\u003e\n\u003cli\u003e(1) 3\" Adjustable Wall Thimble\u003c\/li\u003e\n\u003cli\u003e(1) 3” x 6\" Universal Adapter\u003c\/li\u003e\n\u003cli\u003e(1) 3\" Termination Hood w\/Damper\u003c\/li\u003e\n\u003cli\u003e(1) 2.5\" to 3\" Paloma Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think \u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"iglybn\" data-start=\"27\" data-end=\"238\"\u003eA purpose-built \u003cstrong data-start=\"45\" data-end=\"105\"\u003e3\" stainless steel horizontal vent kit with 2.5\" adapter\u003c\/strong\u003e, designed for safe and code-compliant venting of compatible Eccotemp tankless water heaters. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1u5htyp\" data-start=\"239\" data-end=\"452\"\u003eMade from \u003cstrong data-start=\"251\" data-end=\"278\"\u003eAL-294C stainless steel\u003c\/strong\u003e, offering strong resistance to corrosion and high exhaust temperatures for long-term durability in outdoor wall exhaust applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ffym4d\" data-start=\"453\" data-end=\"689\"\u003eIncludes a complete venting setup: \u003cstrong data-start=\"490\" data-end=\"583\"\u003estraight pipe, 90° elbow, wall thimble, termination hood with damper, and 2.5\"→3\" adapter\u003c\/strong\u003e, ensuring a full horizontal installation solution out of the box. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"zygctc\" data-start=\"690\" data-end=\"903\"\u003eDesigned specifically for \u003cstrong data-start=\"718\" data-end=\"750\"\u003ehorizontal side-wall venting\u003c\/strong\u003e, helping safely expel combustion gases from indoor tankless systems while maintaining proper airflow efficiency. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"yflq6k\" data-start=\"904\" data-end=\"1121\"\u003eWe like the \u003cstrong data-start=\"918\" data-end=\"992\"\u003emodular pipe sizing options (multiple straight pipe lengths available)\u003c\/strong\u003e, allowing installers to customize vent runs based on wall thickness and building layout. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"yfqjzu\" data-start=\"1122\" data-end=\"1303\"\u003eEngineered for \u003cstrong data-start=\"1139\" data-end=\"1174\"\u003eCategory II\/III venting systems\u003c\/strong\u003e, supporting high-efficiency gas appliances with strict safety and pressure requirements. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"h5su05\" data-start=\"1304\" data-end=\"1493\"\u003eCompatible with select Eccotemp tankless lines (including SHLX and similar series), making it a \u003cstrong data-start=\"1402\" data-end=\"1452\"\u003ebrand-matched, low-risk installation component\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"63ou0d\" data-start=\"1494\" data-end=\"1660\"\u003eBest suited for \u003cstrong data-start=\"1512\" data-end=\"1566\"\u003eprofessional installation or experienced DIY users\u003c\/strong\u003e, since correct vent length, slope, and termination spacing are critical for safe operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A    \u003c\/h5\u003e\n\u003cp data-start=\"0\" data-end=\"363\"\u003e\u003cstrong data-start=\"0\" data-end=\"85\"\u003eQ: What is the Eccotemp 3\" Stainless Steel Horizontal Vent Kit with 2.5\" Adapter?\u003c\/strong\u003e\u003cbr data-start=\"85\" data-end=\"88\"\u003eA: It is a \u003cstrong data-start=\"99\" data-end=\"176\"\u003estainless steel venting system designed for indoor tankless water heaters\u003c\/strong\u003e, allowing safe horizontal exhaust of combustion gases through an exterior wall while ensuring proper airflow and compliance with safety standards. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"365\" data-end=\"676\"\u003e\u003cstrong data-start=\"365\" data-end=\"406\"\u003eQ: What is included in this vent kit?\u003c\/strong\u003e\u003cbr data-start=\"406\" data-end=\"409\"\u003eA: The kit typically includes a \u003cstrong data-start=\"441\" data-end=\"588\"\u003e3\" straight pipe, 90° elbow, adjustable wall thimble, universal adapter, termination hood with damper, and a 2.5\" to 3\" stainless steel adapter\u003c\/strong\u003e for compatible SHLX and related series heaters. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"678\" data-end=\"964\"\u003e\u003cstrong data-start=\"678\" data-end=\"727\"\u003eQ: Which water heaters is it compatible with?\u003c\/strong\u003e\u003cbr data-start=\"727\" data-end=\"730\"\u003eA: It is designed for Eccotemp models such as \u003cstrong data-start=\"776\" data-end=\"865\"\u003eSHLX Series, 20HI Series, SH12-A Series, 6GB Builder Series, and 6.5GB Builder Series\u003c\/strong\u003e, ensuring proper vent sizing and safe exhaust performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"966\" data-end=\"1252\"\u003e\u003cstrong data-start=\"966\" data-end=\"1010\"\u003eQ: Why is a 2.5\" to 3\" adapter included?\u003c\/strong\u003e\u003cbr data-start=\"1010\" data-end=\"1013\"\u003eA: The adapter is used to \u003cstrong data-start=\"1039\" data-end=\"1123\"\u003econvert smaller 2.5-inch heater exhaust outlets to a standard 3-inch vent system\u003c\/strong\u003e, improving airflow stability and ensuring correct vent matching for installation safety. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1254\" data-end=\"1513\"\u003e\u003cstrong data-start=\"1254\" data-end=\"1301\"\u003eQ: What material is the vent kit made from?\u003c\/strong\u003e\u003cbr data-start=\"1301\" data-end=\"1304\"\u003eA: It is constructed from \u003cstrong data-start=\"1330\" data-end=\"1357\"\u003eAL-294C stainless steel\u003c\/strong\u003e, designed to resist corrosion and withstand high-temperature exhaust gases in Category II\/III venting applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1515\" data-end=\"1749\"\u003e\u003cstrong data-start=\"1515\" data-end=\"1555\"\u003eQ: Is this suitable for outdoor use?\u003c\/strong\u003e\u003cbr data-start=\"1555\" data-end=\"1558\"\u003eA: No. This is strictly for \u003cstrong data-start=\"1586\" data-end=\"1632\"\u003eindoor tankless water heater installations\u003c\/strong\u003e, where exhaust must be vented horizontally through a wall termination point. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1751\" data-end=\"1972\"\u003e\u003cstrong data-start=\"1751\" data-end=\"1790\"\u003eQ: What is the maximum vent length?\u003c\/strong\u003e\u003cbr data-start=\"1790\" data-end=\"1793\"\u003eA: The system typically supports a \u003cstrong data-start=\"1828\" data-end=\"1865\"\u003emaximum vent run of about 20 feet\u003c\/strong\u003e, with reductions for each 90° elbow to maintain safe exhaust flow.\u003c\/p\u003e\n\u003ch5\u003e               \u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"wl9imv\" data-start=\"90\" data-end=\"247\"\u003eEnsure \u003cstrong data-start=\"99\" data-end=\"156\"\u003eproper 3\" horizontal vent slope (slight upward pitch)\u003c\/strong\u003e to prevent condensate buildup and backflow issues. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1aswkfq\" data-start=\"248\" data-end=\"414\"\u003eInspect and tighten all \u003cstrong data-start=\"274\" data-end=\"320\"\u003ejoints, wall thimble, and termination hood\u003c\/strong\u003e periodically to maintain a fully sealed exhaust path. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1uucxyw\" data-start=\"415\" data-end=\"572\"\u003eCheck the \u003cstrong data-start=\"427\" data-end=\"459\"\u003e2.5\" → 3\" adapter connection\u003c\/strong\u003e regularly for secure fitment and no air leakage at the transition point. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14krjms\" data-start=\"573\" data-end=\"698\"\u003eClean exterior termination hood every few months to remove \u003cstrong data-start=\"634\" data-end=\"669\"\u003edust, soot, or insect blockages\u003c\/strong\u003e that can restrict airflow.\u003c\/li\u003e\n\u003cli data-section-id=\"vdd0lr\" data-start=\"699\" data-end=\"880\"\u003eVerify vent run does not exceed \u003cstrong data-start=\"733\" data-end=\"798\"\u003emanufacturer limits (typically ~20 ft minus elbow reductions)\u003c\/strong\u003e to ensure safe combustion and efficiency. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rt6bkq\" data-start=\"881\" data-end=\"1019\"\u003eInspect stainless steel pipe sections for \u003cstrong data-start=\"925\" data-end=\"968\"\u003ecorrosion, dents, or heat discoloration\u003c\/strong\u003e, especially after heavy use or weather exposure.\u003c\/li\u003e\n\u003cli data-section-id=\"1jrx46d\" data-start=\"1020\" data-end=\"1171\"\u003eEnsure wall penetration and thimble remain \u003cstrong data-start=\"1065\" data-end=\"1083\"\u003eweather-sealed\u003c\/strong\u003e to prevent moisture ingress into the structure. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1m5p4zu\" data-start=\"1172\" data-end=\"1279\"\u003eDuring servicing, confirm \u003cstrong data-start=\"1200\" data-end=\"1240\"\u003eno condensation pooling inside pipes\u003c\/strong\u003e, especially in long horizontal runs.\u003c\/li\u003e\n\u003cli data-section-id=\"10k4s9l\" data-start=\"1280\" data-end=\"1388\"\u003eKeep vent path clear of \u003cstrong data-start=\"1306\" data-end=\"1356\"\u003eobstructions (plants, debris, or stored items)\u003c\/strong\u003e outside the termination area.\u003c\/li\u003e\n\u003cli data-section-id=\"dr4o3t\" data-start=\"1389\" data-end=\"1503\"\u003eIf unusual error codes or flame instability occur, check venting first for \u003cstrong data-start=\"1466\" data-end=\"1502\"\u003eblockage or disconnection issues\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eccotemp","offers":[{"title":"Default Title","offer_id":45658908229823,"sku":"SKU_1779686052177_313","price":322.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/3-Horizontal-with-Paloma__89586.1646244484.1280.1280__20704.1706631984.1280.1280__65264.1738692759.jpg?v=1779688311","url":"https:\/\/backyardprovider.com\/products\/3-stainless-steel-horizontal-vent-kit-with-2-5-in-adapter","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}