{"product_id":"rinnai-398k-btu-68-h-series-hybrid-water-heating-system-asme-ultra-low-nox","title":"Rinnai 398K BTU 68\" H-Series Hybrid Water Heating System ASME Ultra Low NOx","description":"\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003chr\u003e\n\u003ch3\u003eRinnai 398K BTU 68\" Natural Gas H-Series Hybrid Water Heating System ASME Ultra Low NOx CHS398100HCXAiN\u003c\/h3\u003e\n\n\u003cp\u003eThe Rinnai Demand Duo™ H-Series ASME (CHS-HCX2A Model Series) is a high-performance commercial hybrid water heating system engineered for facilities requiring ASME-certified pressure vessels. This 398,000 BTU Natural Gas system combines a 119-gallon ASME-certified storage tank with dual high-efficiency tankless engines to deliver superior performance, redundancy, and energy savings.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for demanding commercial applications such as hospitals, multifamily buildings, hotels, and large facilities, this system provides built-in redundancy to help eliminate “no hot water” events while achieving an ultra-high 0.98 Uniform Energy Factor (UEF). Its hybrid design reduces thermal stress on the tank, significantly extending service life compared to traditional high-efficiency commercial storage tanks.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e\u003cbr\u003e\n    Installation, commissioning, and servicing of this heating equipment must be performed by a licensed and qualified professional in strict compliance with manufacturer guidelines, local codes, and industry standards. The manufacturer does not accept warranty claims or technical support inquiries from homeowners or unlicensed individuals. All warranty and technical inquiries must be initiated by the licensed professional responsible for installation.\n\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features:\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eASME Certified Tank:\u003c\/strong\u003e Engineered to meet stringent commercial building code and pressure vessel requirements.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eDual Engine Redundancy:\u003c\/strong\u003e Two integrated tankless engines provide consistent hot water even during peak demand.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eUltra-High Efficiency:\u003c\/strong\u003e 0.98 UEF significantly reduces energy consumption and operating costs.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eUltra Low NOx:\u003c\/strong\u003e Meets strict emissions requirements for environmentally sensitive regions.\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eExtended Service Life:\u003c\/strong\u003e Hybrid design minimizes thermal stress, increasing durability and reliability.\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n    \u003cstrong\u003e\n        \u003ca href=\"https:\/\/hvacstore.com\/collections\/commercial-hybrid-water-heating-system\"\u003e\n            View More Commercial Hybrid Water Heating Systems\n        \u003c\/a\u003e\n    \u003c\/strong\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003chr\u003e\n\u003ch3\u003eRinnai 398K BTU 68\" Natural Gas H-Series Hybrid Water Heating System ASME Ultra Low NOx CHS398100HCXAiN\u003c\/h3\u003e\n\n\u003ctable border=\"1\" style=\"border-collapse: collapse; width: 100%; text-align: center;\"\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eBrand\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003eRinnai\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eModel\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003eCHS398100HCXAiN\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eGas Type\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003eNatural Gas\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eBTU Max\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e398,000 BTU\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eTank Capacity\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e119 Gallons (ASME)\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eUniform Energy Factor (UEF)\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e0.98\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eProduct Height\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e68.00 in\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eProduct Width\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e41.00 in\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eInstallation Type\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003eIndoor\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eElectrical Voltage\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e120V\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003chr\u003e\n\u003ch3\u003eRinnai 398K BTU 68\" Natural Gas H-Series Hybrid Water Heating System ASME Ultra Low NOx CHS398100HCXAiN\u003c\/h3\u003e\n\n\u003ctable border=\"1\" style=\"width: 100%; text-align: center; border-collapse: collapse;\"\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eWarranty Type\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eTank\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eParts\u003c\/td\u003e\n            \u003ctd style=\"background-color: lightgray; font-weight: bold; height: 50px;\"\u003eLabor\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"height: 50px;\"\u003eStandard For Commercial\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e6 Years\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e5 Years\u003c\/td\u003e\n            \u003ctd style=\"height: 50px;\"\u003e1 Year\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003chr\u003e\n\u003ch3\u003eRinnai 398K BTU 68\" Natural Gas H-Series Hybrid Water Heating System ASME Ultra Low NOx CHS398100HCXAiN\u003c\/h3\u003e\n\n\u003cp\u003e\n    \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0785\/1494\/6352\/files\/CHS398100HCXAiN_specs.pdf?v=1772568260\" target=\"_blank\"\u003e\n        \u003cstrong\u003eSpecification Sheet\u003c\/strong\u003e\n    \u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\n    \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0785\/1494\/6352\/files\/CHS398100HCXAiN_warranty.pdf?v=1772568261\" target=\"_blank\"\u003e\n        \u003cstrong\u003eWarranty Document\u003c\/strong\u003e\n    \u003c\/a\u003e\n\u003c\/p\u003e","brand":"Rinnai","offers":[{"title":"Default Title","offer_id":50796394021168,"sku":"CHS398100HCXAiN","price":19425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/1494\/6352\/files\/Rinnai_CHS398100HCXAiN.webp?v=1772594788","url":"https:\/\/hvacstore.com\/products\/rinnai-398k-btu-68-h-series-hybrid-water-heating-system-asme-ultra-low-nox","provider":"HVAC Store","version":"1.0","type":"link"}