{"product_id":"lochinvar-ng-nkc150n-noble-fire-tube-boiler-150-000-btu-high-efficiency","title":"Lochinvar (NG) NKC150N Noble Fire Tube Boiler | 150,000 BTU High Efficiency","description":"\u003cstyle\u003e\n  .ws-nkc150 {\n    max-width: 1100px;\n    margin: 0 auto;\n    color: #242424;\n    font-family: inherit;\n    line-height: 1.65;\n  }\n\n  .ws-nkc150 * {\n    box-sizing: border-box;\n  }\n\n  .ws-nkc150 h2,\n  .ws-nkc150 h3 {\n    margin-top: 0;\n    color: #222222;\n    line-height: 1.25;\n  }\n\n  .ws-nkc150 h2 {\n    margin-bottom: 16px;\n    font-size: 30px;\n  }\n\n  .ws-nkc150 h3 {\n    margin-bottom: 15px;\n    font-size: 23px;\n  }\n\n  .ws-nkc150 p {\n    margin: 0 0 17px;\n  }\n\n  .ws-nkc150-section {\n    margin: 38px 0;\n  }\n\n  .ws-nkc150-highlights {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 14px;\n    margin: 26px 0 32px;\n  }\n\n  .ws-nkc150-highlight {\n    padding: 20px 15px;\n    border: 1px solid #e2e2e2;\n    border-radius: 12px;\n    background: #f8f8f8;\n    text-align: center;\n  }\n\n  .ws-nkc150-highlight strong {\n    display: block;\n    margin-bottom: 5px;\n    color: #9e0929;\n    font-size: 25px;\n    line-height: 1.2;\n  }\n\n  .ws-nkc150-notice {\n    margin: 28px 0;\n    padding: 20px 22px;\n    border-left: 5px solid #9e0929;\n    border-radius: 8px;\n    background: #f8eeee;\n  }\n\n  .ws-nkc150-notice strong {\n    color: #850720;\n  }\n\n  .ws-nkc150-features {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 12px 28px;\n    margin: 0;\n    padding: 0;\n    list-style: none;\n  }\n\n  .ws-nkc150-features li {\n    position: relative;\n    padding: 2px 0 2px 34px;\n  }\n\n  .ws-nkc150-features li::before {\n    content: \"✓\";\n    position: absolute;\n    top: 0;\n    left: 0;\n    width: 23px;\n    height: 23px;\n    border-radius: 50%;\n    background: #9e0929;\n    color: #ffffff;\n    font-size: 14px;\n    font-weight: 700;\n    line-height: 23px;\n    text-align: center;\n  }\n\n  .ws-nkc150-applications {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 16px;\n  }\n\n  .ws-nkc150-application {\n    padding: 22px;\n    border: 1px solid #e1e1e1;\n    border-radius: 12px;\n    background: #ffffff;\n  }\n\n  .ws-nkc150-application strong {\n    display: block;\n    margin-bottom: 6px;\n    color: #9e0929;\n    font-size: 18px;\n  }\n\n  .ws-nkc150-combi {\n    padding: 28px;\n    border-radius: 14px;\n    background: #f5f5f5;\n  }\n\n  .ws-nkc150-combi-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 22px;\n    margin-top: 20px;\n  }\n\n  .ws-nkc150-combi-item {\n    padding: 20px;\n    border: 1px solid #dddddd;\n    border-radius: 10px;\n    background: #ffffff;\n  }\n\n  .ws-nkc150-combi-item strong {\n    display: block;\n    margin-bottom: 6px;\n    color: #9e0929;\n    font-size: 18px;\n  }\n\n  .ws-nkc150-spec-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    align-items: start;\n  }\n\n  .ws-nkc150-specs {\n    width: 100%;\n    border: 1px solid #dddddd;\n    border-collapse: collapse;\n  }\n\n  .ws-nkc150-specs th,\n  .ws-nkc150-specs td {\n    padding: 13px 15px;\n    border-bottom: 1px solid #dddddd;\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .ws-nkc150-specs th {\n    width: 43%;\n    background: #f5f5f5;\n    font-weight: 700;\n  }\n\n  .ws-nkc150-specs tr:last-child th,\n  .ws-nkc150-specs tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .ws-nkc150-callout {\n    margin-top: 30px;\n    padding: 22px;\n    border: 1px solid #e2c26a;\n    border-radius: 10px;\n    background: #fff9e8;\n  }\n\n  .ws-nkc150-disclaimer {\n    margin-top: 25px;\n    padding-top: 20px;\n    border-top: 1px solid #dddddd;\n    color: #555555;\n    font-size: 14px;\n  }\n\n  @media screen and (max-width: 749px) {\n    .ws-nkc150 h2 {\n      font-size: 25px;\n    }\n\n    .ws-nkc150-highlights,\n    .ws-nkc150-features,\n    .ws-nkc150-applications,\n    .ws-nkc150-combi-grid,\n    .ws-nkc150-spec-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .ws-nkc150-combi {\n      padding: 22px;\n    }\n\n    .ws-nkc150-specs th,\n    .ws-nkc150-specs td {\n      display: block;\n      width: 100%;\n    }\n\n    .ws-nkc150-specs th {\n      padding-bottom: 5px;\n      border-bottom: 0;\n    }\n\n    .ws-nkc150-specs td {\n      padding-top: 5px;\n    }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"ws-nkc150\"\u003e\n\n  \u003cdiv class=\"ws-nkc150-section\"\u003e\n    \u003ch2\u003eLochinvar Noble NKC150N High-Efficiency Combi Boiler\u003c\/h2\u003e\n\n    \u003cp\u003e\n      The Lochinvar Noble NKC150N is a high-efficiency, wall-mounted\n      condensing combi boiler that provides hydronic space heating and\n      domestic hot water from one compact appliance. With a maximum input\n      of 150,000 BTU and 95% AFUE efficiency, it provides dependable comfort\n      while helping reduce natural gas consumption.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      The NKC150N combines an ASME stainless steel fire-tube heat exchanger\n      for space heating with a stainless steel brazed-plate heat exchanger\n      for domestic hot-water production. Its compact wall-mounted design\n      reduces the amount of mechanical-room equipment needed while preserving\n      valuable floor space.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"ws-nkc150-highlights\"\u003e\n      \u003cdiv class=\"ws-nkc150-highlight\"\u003e\n        \u003cstrong\u003e150,000\u003c\/strong\u003e\n        Maximum BTU Input\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"ws-nkc150-highlight\"\u003e\n        \u003cstrong\u003e95%\u003c\/strong\u003e\n        AFUE Efficiency\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"ws-nkc150-highlight\"\u003e\n        \u003cstrong\u003e3.6 GPM\u003c\/strong\u003e\n        Domestic Hot Water\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"ws-nkc150-notice\"\u003e\n      \u003cstrong\u003eAll-in-one combi boiler:\u003c\/strong\u003e\n      The NKC150N provides both hydronic space heating and on-demand domestic\n      hot water. Its 3.6 GPM domestic hot-water rating is based on a 77°F\n      temperature rise. Actual hot-water delivery will vary depending on\n      incoming water temperature, set point and simultaneous fixture demand.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"ws-nkc150-section\"\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n\n    \u003cul class=\"ws-nkc150-features\"\u003e\n      \u003cli\u003e150,000 BTU maximum input for residential heating applications\u003c\/li\u003e\n      \u003cli\u003e15,000 BTU minimum input for efficient low-load operation\u003c\/li\u003e\n      \u003cli\u003e95% AFUE high-efficiency condensing performance\u003c\/li\u003e\n      \u003cli\u003e10:1 modulation turndown ratio for improved comfort\u003c\/li\u003e\n      \u003cli\u003eProvides space heating and domestic hot water from one appliance\u003c\/li\u003e\n      \u003cli\u003eUp to 3.6 GPM domestic hot water at a 77°F temperature rise\u003c\/li\u003e\n      \u003cli\u003eASME stainless steel fire-tube heat exchanger\u003c\/li\u003e\n      \u003cli\u003eStainless steel brazed-plate domestic water heat exchanger\u003c\/li\u003e\n      \u003cli\u003eSMART CONTROL™ digital operating system\u003c\/li\u003e\n      \u003cli\u003ePlain-language LCD display and guided setup controls\u003c\/li\u003e\n      \u003cli\u003eOutdoor-reset control capability\u003c\/li\u003e\n      \u003cli\u003eDomestic hot-water preheat and response settings\u003c\/li\u003e\n      \u003cli\u003eAir-handler interlock for compatible hydro-air systems\u003c\/li\u003e\n      \u003cli\u003eBuilt-in circulating pump\u003c\/li\u003e\n      \u003cli\u003eUniversal vent connection for multiple vent materials\u003c\/li\u003e\n      \u003cli\u003eENERGY STAR® certified residential boiler\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"ws-nkc150-section\"\u003e\n    \u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\n    \u003cdiv class=\"ws-nkc150-applications\"\u003e\n      \u003cdiv class=\"ws-nkc150-application\"\u003e\n        \u003cstrong\u003eRadiant Floor Heating\u003c\/strong\u003e\n        Provides controlled hot-water temperatures for comfortable and\n        efficient in-floor radiant heating systems.\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"ws-nkc150-application\"\u003e\n        \u003cstrong\u003eDomestic Hot Water\u003c\/strong\u003e\n        Produces on-demand hot water for showers, sinks and other residential\n        plumbing fixtures without a separate tank-style water heater.\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"ws-nkc150-application\"\u003e\n        \u003cstrong\u003eBaseboard and Radiator Heating\u003c\/strong\u003e\n        Can supply properly designed hydronic baseboard, panel-radiator and\n        traditional radiator systems.\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"ws-nkc150-application\"\u003e\n        \u003cstrong\u003eHydro-Air Systems\u003c\/strong\u003e\n        Can serve compatible air handlers while its interlock helps prevent\n        cool-air circulation during domestic hot-water production.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"ws-nkc150-section ws-nkc150-combi\"\u003e\n    \u003ch3\u003eHeating and Hot Water From One Appliance\u003c\/h3\u003e\n\n    \u003cp\u003e\n      The Noble NKC150N is designed for homes that need efficient hydronic\n      heating and reliable on-demand domestic hot water without installing\n      two separate appliances.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"ws-nkc150-combi-grid\"\u003e\n      \u003cdiv class=\"ws-nkc150-combi-item\"\u003e\n        \u003cstrong\u003eConsistent Space Heating\u003c\/strong\u003e\n        The modulating burner adjusts its output as heating demand changes,\n        helping maintain comfortable system-water temperatures while reducing\n        unnecessary on-and-off cycling.\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"ws-nkc150-combi-item\"\u003e\n        \u003cstrong\u003eResponsive Hot Water\u003c\/strong\u003e\n        Advanced domestic hot-water controls provide quick response when a\n        faucet or shower is opened and are designed to reduce interruptions\n        in hot-water delivery.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"ws-nkc150-section\"\u003e\n    \u003ch3\u003eDesigned for Radiant Floor Heating\u003c\/h3\u003e\n\n    \u003cp\u003e\n      The NKC150N is well suited for hydronic radiant-floor heating systems.\n      Its condensing operation, outdoor-reset capability and 10:1 turndown\n      ratio allow the boiler to adjust as outdoor temperatures and heating\n      loads change.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      When paired with properly sized manifolds, pumps, controls and zoning\n      components, the NKC150N can supply multiple rooms or heating zones while\n      also producing domestic hot water from the same wall-mounted appliance.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"ws-nkc150-section\"\u003e\n    \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n    \u003cdiv class=\"ws-nkc150-spec-grid\"\u003e\n\n      \u003ctable class=\"ws-nkc150-specs\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n            \u003ctd\u003eLochinvar\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eModel\u003c\/th\u003e\n            \u003ctd\u003eNKC150N\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eProduct Type\u003c\/th\u003e\n            \u003ctd\u003eWall-mounted condensing combi boiler\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eFuel Type\u003c\/th\u003e\n            \u003ctd\u003eNatural gas\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eMaximum Input\u003c\/th\u003e\n            \u003ctd\u003e150,000 BTU\/hr\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eMinimum Input\u003c\/th\u003e\n            \u003ctd\u003e15,000 BTU\/hr\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eDOE Heating Capacity\u003c\/th\u003e\n            \u003ctd\u003e139,000 BTU\/hr\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eNet AHRI Rating\u003c\/th\u003e\n            \u003ctd\u003e121,000 BTU\/hr\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eEfficiency\u003c\/th\u003e\n            \u003ctd\u003e95% AFUE\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eTurndown Ratio\u003c\/th\u003e\n            \u003ctd\u003e10:1\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eDomestic Hot Water\u003c\/th\u003e\n            \u003ctd\u003eUp to 3.6 GPM at a 77°F temperature rise\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n\n      \u003ctable class=\"ws-nkc150-specs\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eSpace-Heating Connections\u003c\/th\u003e\n            \u003ctd\u003e1 inch\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eDomestic Water Connections\u003c\/th\u003e\n            \u003ctd\u003e3\/4 inch\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eGas Connection\u003c\/th\u003e\n            \u003ctd\u003e1\/2 inch\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eVenting Options\u003c\/th\u003e\n            \u003ctd\u003e\n              2-inch venting up to 50 equivalent feet or 3-inch venting up\n              to 100 equivalent feet\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eApproved Vent Materials\u003c\/th\u003e\n            \u003ctd\u003e\n              PVC, CPVC, polypropylene or approved stainless steel\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eElectrical Supply\u003c\/th\u003e\n            \u003ctd\u003e120 VAC, 60 Hz, single phase\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eDimensions\u003c\/th\u003e\n            \u003ctd\u003e32-1\/2\" H × 18-3\/4\" W × 18\" D\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eShipping Weight\u003c\/th\u003e\n            \u003ctd\u003eApproximately 142 lb.\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eHeat Exchanger Warranty\u003c\/th\u003e\n            \u003ctd\u003e10-year limited warranty\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eParts Warranty\u003c\/th\u003e\n            \u003ctd\u003e5-year limited warranty\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth scope=\"row\"\u003eInstallation\u003c\/th\u003e\n            \u003ctd\u003eIndoor installation only\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"ws-nkc150-callout\"\u003e\n    \u003cstrong\u003eAltitude and system-sizing assistance:\u003c\/strong\u003e\n    This model is rated for installation at altitudes up to 4,500 feet.\n    For high-altitude applications or assistance determining whether this\n    boiler can meet your heating and domestic hot-water requirements, please\n    call \u003cstrong\u003e1-800-663-7831\u003c\/strong\u003e before ordering.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"ws-nkc150-disclaimer\"\u003e\n    Boiler selection should be based on a professional heat-loss calculation\n    and domestic hot-water demand analysis, not square footage alone.\n    Installation, venting, gas connections, water connections, system piping,\n    startup and combustion testing must be completed by a qualified heating\n    professional in accordance with Lochinvar instructions and all applicable\n    codes. Warranty coverage is subject to the manufacturer’s current terms\n    and conditions.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Lochinvar","offers":[{"title":"Default Title","offer_id":53801158181048,"sku":null,"price":3300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0914\/2376\/8760\/files\/LOC_Noble_20Boiler_F.jpg?v=1784828423","url":"https:\/\/warmingsystemshydronic.com\/products\/lochinvar-ng-nkc150n-noble-fire-tube-boiler-150-000-btu-high-efficiency","provider":"Warming Systems Hydronic","version":"1.0","type":"link"}