{"product_id":"ncb-250-150h-condensing-combi-boiler-250000-btu-dhw-210000-btu-htg","title":"NCB-250\/150H – Condensing Combi-Boiler – 250,000 BTU DHW \/ 210,000 BTU HTG","description":"\u003cdiv class=\"rm-wrap\"\u003e\n\u003cstyle\u003e\n.rm-wrap{--g:#3f7a3d;--g2:#5aa356;--ink:#14181f;--mut:#5b6472;--line:#e3e7ee;font-family:inherit;color:var(--ink);line-height:1.6;max-width:100%}\n.rm-wrap *{box-sizing:border-box}\n.rm-wrap h2,.rm-wrap h3,.rm-wrap p,.rm-wrap ul,.rm-wrap li{margin:0;padding:0}\n.rm-wrap ul{list-style:none}\n.rm-ic{display:inline-flex;width:22px;height:22px;flex-shrink:0}\n.rm-ic svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}\n\n@keyframes rmUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}\n@keyframes rmPulse{0%{box-shadow:0 0 0 0 rgba(63,122,61,.55)}100%{box-shadow:0 0 0 10px rgba(63,122,61,0)}}\n@keyframes rmShine{to{background-position:200% 0}}\n@keyframes rmPop{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:none}}\n.rm-reveal{animation:rmUp .7s cubic-bezier(.2,.7,.2,1) both;animation-delay:var(--d,0s)}\n@supports (animation-timeline:view()){\n  .rm-reveal{animation:rmUp linear both;animation-timeline:view();animation-range:entry 0% entry 55%;animation-delay:0s}\n}\n\n.rm-hero{position:relative;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:36px;border-radius:26px;overflow:hidden;background:linear-gradient(135deg,#ffffff 0%,#eef6ee 55%,#dcecdc 100%);border:1px solid #d5e5d5}\n.rm-hero-text{flex:1;min-width:0;position:relative;z-index:2}\n.rm-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:linear-gradient(90deg,var(--g),var(--g2),var(--g));background-size:200% 100%;animation:rmShine 4s linear 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img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:16px;filter:drop-shadow(0 18px 18px rgba(20,60,20,.18))}\n\n.rm-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}\n.rm-stat{padding:22px 14px;text-align:center;border-radius:20px;background:#fff;border:1px solid var(--line);transition:.3s;animation:rmPop .6s both;animation-delay:var(--d,0s)}\n.rm-stat:hover{transform:translateY(-6px);border-color:var(--g);box-shadow:0 14px 28px rgba(63,122,61,.16)}\n.rm-stat b{display:block;font-size:20px;line-height:1.15;font-weight:900;color:var(--g)}\n.rm-stat b small{font-size:11px;font-weight:800;margin-left:2px}\n.rm-stat 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tr:nth-child(even){background:#f5f9f5}\n.rm-spec tr:hover{background:#e6f1e6}\n\n.rm-apps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}\n.rm-app{padding:22px 18px;border-radius:20px;background:#fff;border:1px solid var(--line);transition:.3s}\n.rm-app:hover{transform:translateY(-6px);box-shadow:0 16px 30px rgba(20,60,20,.14);border-color:var(--g)}\n.rm-app h3{font-size:14px;font-weight:900;text-transform:uppercase;margin-bottom:6px!important}\n.rm-app p{font-size:13.5px;color:var(--mut)}\n\n.rm-list{display:grid;gap:10px}\n.rm-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 16px;border-radius:16px;background:#fff;border:1px solid var(--line);font-size:15px;transition:.25s}\n.rm-list li:hover{transform:translateX(6px);border-color:var(--g);background:#f3f9f3}\n.rm-list .rm-ic{width:26px;height:26px;padding:5px;border-radius:50%;background:var(--g);color:#fff;margin-top:1px}\n\n.rm-wrap .rm-legal{margin-top:36px!important;padding:20px 24px!important;border-radius:16px;background:#14181f;color:#e7eaf0;font-size:13px!important;line-height:1.7!important}\n.rm-wrap .rm-legal b{color:#fff}\n\n@media(max-width:700px){\n  .rm-hero{flex-direction:column-reverse;padding:26px 20px;text-align:center}\n  .rm-hero-art{flex:none;height:180px}\n  .rm-lead{margin:0 auto}\n  .rm-chips{justify-content:center}\n  .rm-stats{grid-template-columns:repeat(2,1fr)}\n  .rm-apps{grid-template-columns:1fr}\n  .rm-spec th,.rm-spec td{padding:11px 14px;font-size:14px}\n  .rm-h{font-size:19px}\n}\n@media(prefers-reduced-motion:reduce){.rm-wrap *{animation:none!important;transition:none!important}}\n\u003c\/style\u003e\n\n\u003c!-- HERO --\u003e\n\u003csection class=\"rm-hero\"\u003e\n  \u003cdiv class=\"rm-hero-text\"\u003e\n    \u003cspan class=\"rm-badge\"\u003e\u003ci class=\"rm-dot\"\u003e\u003c\/i\u003eAim High with Navien\u003c\/span\u003e\n    \u003ch2 class=\"rm-title\"\u003eNavien NCB-250\/150H\u003cspan\u003eCondensing Combi-Boiler · 250,000 BTU DHW \/ 210,000 BTU Heating\u003c\/span\u003e\n\u003c\/h2\u003e\n    \u003cp class=\"rm-lead\"\u003eA 95% AFUE condensing combi-boiler that combines powerful space heating and on-demand domestic hot water in a single wall-hung unit, delivering efficient performance for larger residential applications.\u003c\/p\u003e\n    \u003cdiv class=\"rm-chips\"\u003e\n      \u003cspan class=\"rm-chip\"\u003e\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M13 2L3 14h7l-1 8 10-12h-7z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e95% AFUE\u003c\/span\u003e\n      \u003cspan class=\"rm-chip\"\u003e\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"9\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 7v5l3 2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eNaviLink smart controller\u003c\/span\u003e\n      \u003cspan class=\"rm-chip\"\u003e\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 3l8 3v6c0 5-3.5 8-8 9-4.5-1-8-4-8-9V6z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 12l2.5 2.5 4.5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eENERGY STAR certified\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rm-hero-art\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/NCB-H-house.png?v=1634582995\" alt=\"Navien NCB-H full house diagram\"\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- STATS --\u003e\n\u003cdiv class=\"rm-stats\"\u003e\n  \u003cdiv class=\"rm-stat\" style=\"--d:.1s\"\u003e\n\u003cb\u003e150K\u003c\/b\u003e\u003cspan\u003eHeating input BTU\/hr\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"rm-stat\" style=\"--d:.2s\"\u003e\n\u003cb\u003e120K\u003c\/b\u003e\u003cspan\u003eNet AHRI rating BTU\/hr\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"rm-stat\" style=\"--d:.3s\"\u003e\n\u003cb\u003e11.1:1\u003c\/b\u003e\u003cspan\u003eHeating turndown ratio\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"rm-stat\" style=\"--d:.4s\"\u003e\n\u003cb\u003e15:1\u003c\/b\u003e\u003cspan\u003eDHW turndown ratio\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"rm-intro rm-reveal\"\u003eField convertible from natural gas to propane and supports a range of venting materials including PVC, CPVC, polypropylene, and stainless steel. It also features compatibility with Navien's NaviLink smart home controller for remote access and monitoring.\u003c\/p\u003e\n\n\u003c!-- SPECS --\u003e\n\u003csection class=\"rm-sec rm-reveal\"\u003e\n  \u003ch3 class=\"rm-h\"\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M9 3h6M10 3v6l-5 9a2 2 0 002 3h10a2 2 0 002-3l-5-9V3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eTechnical specification\u003c\/h3\u003e\n  \u003cdiv class=\"rm-specbox\"\u003e\n    \u003ctable class=\"rm-spec\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e95% AFUE, ENERGY STAR certified\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eHeating input\u003c\/th\u003e\n\u003ctd\u003e150,000 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eNet AHRI rating\u003c\/th\u003e\n\u003ctd\u003e120,000 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eDHW input\u003c\/th\u003e\n\u003ctd\u003eUp to 250,000 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eHeating turndown ratio\u003c\/th\u003e\n\u003ctd\u003e11.1:1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eDHW turndown ratio\u003c\/th\u003e\n\u003ctd\u003e15:1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eFuel\u003c\/th\u003e\n\u003ctd\u003eField convertible — natural gas or propane\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eControls\u003c\/th\u003e\n\u003ctd\u003eSmart controls, NaviLink compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eDesign\u003c\/th\u003e\n\u003ctd\u003eCompact wall-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth scope=\"row\"\u003eVenting\u003c\/th\u003e\n\u003ctd\u003e2″ or 3″, PVC, CPVC, polypropylene or stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- APPLICATIONS --\u003e\n\u003csection class=\"rm-sec rm-reveal\"\u003e\n  \u003ch3 class=\"rm-h\"\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003crect x=\"3\" y=\"3\" width=\"7\" height=\"7\" rx=\"1\"\u003e\u003c\/rect\u003e\u003crect x=\"14\" y=\"3\" width=\"7\" height=\"7\" rx=\"1\"\u003e\u003c\/rect\u003e\u003crect x=\"3\" y=\"14\" width=\"7\" height=\"7\" rx=\"1\"\u003e\u003c\/rect\u003e\u003crect x=\"14\" y=\"14\" width=\"7\" height=\"7\" rx=\"1\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e\u003c\/span\u003eApplications\u003c\/h3\u003e\n  \u003cdiv class=\"rm-apps\"\u003e\n    \u003cdiv class=\"rm-app\"\u003e\n\u003ch3\u003eWhole-Home Comfort\u003c\/h3\u003e\n\u003cp\u003eWhole-home space heating and domestic hot water.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"rm-app\"\u003e\n\u003ch3\u003eMedium to Large Homes\u003c\/h3\u003e\n\u003cp\u003eSuited for medium to large residential homes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"rm-app\"\u003e\n\u003ch3\u003eFlexible Venting\u003c\/h3\u003e\n\u003cp\u003eIndoor installations with venting flexibility.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"rm-app\"\u003e\n\u003ch3\u003eNG or LP Systems\u003c\/h3\u003e\n\u003cp\u003eNatural gas or propane fuel systems.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"rm-app\"\u003e\n\u003ch3\u003eRetrofit \u0026amp; New Construction\u003c\/h3\u003e\n\u003cp\u003eRetrofits and new construction projects.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"rm-app\"\u003e\n\u003ch3\u003eSmart Home Ready\u003c\/h3\u003e\n\u003cp\u003eSmart home integration with NaviLink controller.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- FEATURES --\u003e\n\u003csection class=\"rm-sec rm-reveal\"\u003e\n  \u003ch3 class=\"rm-h\"\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eKey features\u003c\/h3\u003e\n  \u003cul class=\"rm-list\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e95% AFUE high-efficiency rating\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e150,000 BTU\/hr heating input, 120,000 BTU\/hr net AHRI rating\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e11.1:1 turndown ratio for space heating, 15:1 for domestic hot water\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eField convertible between natural gas and propane\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eSmart controls with NaviLink compatibility for remote access and monitoring\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eDual stainless steel heat exchangers resist corrosion, improving heat recovery and life span\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eSeparate stainless steel flat plate heat exchanger for DHW delivers the industry's lightest flow rates\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eDual Venturi system with included orifice conversion kit for easy field gas convertibility\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eQuiet running for installation in or near media rooms, recreation rooms or any living area\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"rm-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M20 6L9 17l-5-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003eCompatible with 2″ or 3″ venting in PVC, CPVC, polypropylene or stainless steel\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003cp class=\"rm-legal rm-reveal\"\u003e\u003cb\u003eNavien NCB-250\/150H combi-boiler.\u003c\/b\u003e Follow the installation manual, local gas and plumbing codes, and manufacturer instructions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Votara","offers":[{"title":"Default Title","offer_id":50516448804960,"sku":"NCB-250\/150H","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/2126\/5248\/files\/ncb-h-nv_a4acec5b-e18c-4788-a794-d8064c0d5bc4.jpg?v=1790225013","url":"https:\/\/votara.shop\/products\/ncb-250-150h-condensing-combi-boiler-250000-btu-dhw-210000-btu-htg","provider":"Votara","version":"1.0","type":"link"}