{"product_id":"jxi400nn-jandy-jxi-400-btu-natural-pool-spa-cuni-heater","title":"JXI400NN | Jandy JXi 400 BTU Natural Pool \u0026 Spa CUNI Heater","description":"\u003cp data-start=\"160\" data-end=\"231\"\u003eOEM Jandy JXi 400N Natural Gas Pool \u0026amp; Spa CUNI Heater | 399,000 BTUs. The Jandy JXi 400N Natural Gas Pool \u0026amp; Spa Heater with cupronickel exchanger offers top-tier performance with 399,000 BTUs of heating power, designed to efficiently heat both residential and professional pools and spas. Its compact and lightweight design (126 lbs) allows for easy installation and retrofitting, often without the need for plumbing adjustments, especially when replacing older models like the MasterTemp® or Max-E-Therm®.\u003c\/p\u003e\n\u003cp data-start=\"644\" data-end=\"1033\" class=\"\"\u003eThis high-efficiency unit boasts 84% thermal efficiency and meets stringent DOE energy standards, making it an environmentally-friendly choice. Ready for integration with Jandy’s AquaLink® systems, the JXi 400N allows remote control via the iAquaLink® app for ultimate convenience. For those seeking further energy savings, the optional VersaFlo™ Integrated Bypass technology is available.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 30px; flex-wrap: wrap;\"\u003e\n\u003c!-- Left Side: Image --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/JXI400N_Jandy_JXi_400_BTU_Natural_Pool_Heater_Nammer_1.jpg?v=1745680334\" alt=\"Product Image\" style=\"width: 100%; max-width: 600px; border-radius: 12px;\"\u003e\u003c\/div\u003e\n\u003c!-- Right Side: Text --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\n\u003ch2 data-end=\"478\"\u003e\u003cstrong\u003eEnergy-Efficient Heating \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp style=\"font-size: 18px; line-height: 1.6;\"\u003e84% thermal efficiency rating and low-NOx design surpasses strict DOE Energy Efficiency requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 20px;\"\u003e\n\u003c!-- Left Side: Text --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px; font-size: 18px; line-height: 1.6;\"\u003e\n\u003ch2 data-end=\"478\" data-start=\"464\"\u003e\u003cstrong\u003eAutomation-Ready \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCompatible with AquaLink® automation systems for anytime, anywhere control from your mobile device using the iAquaLink™ app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Right Side: Big Image --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/JXI400N_Jandy_JXi_400_BTU_Natural_Pool_Heater_Nammer_6.jpg?v=1745680334\" alt=\"Product Image\" style=\"width: 100%; max-width: 1000px; height: auto; border-radius: 10px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 30px; flex-wrap: wrap;\"\u003e\n\u003c!-- Left Side: Image --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/JXI400N_Jandy_JXi_400_BTU_Natural_Pool_Heater_Nammer_3.jpg?v=1745680332\" alt=\"Product Image\" style=\"width: 100%; max-width: 600px; border-radius: 12px;\"\u003e\u003c\/div\u003e\n\u003c!-- Right Side: Text --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\n\u003ch2 data-end=\"478\"\u003e\u003cstrong\u003eUltra-Compact Lightweight Design \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp style=\"font-size: 18px; line-height: 1.6;\"\u003eEasy to store, transport, and install, JXi easily fits on a 2’ x 2’ pad and is 38% lighter with a 28% smaller footprint\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 20px;\"\u003e\n\u003c!-- Left Side: Text --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px; font-size: 18px; line-height: 1.6;\"\u003e\n\u003ch2 data-end=\"478\" data-start=\"464\"\u003e\u003cstrong\u003eBest Retrofit Option \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePlumbing flexibility for quick Mastertemp® and Max-E Therm® replacement that requires no plumbing adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Right Side: Big Image --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/JXI400N_Jandy_JXi_400_BTU_Natural_Pool_Heater_Nammer_2.jpg?v=1745680335\" alt=\"Product Image\" style=\"width: 100%; max-width: 1000px; height: auto; border-radius: 10px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 30px; flex-wrap: wrap;\"\u003e\n\u003c!-- Left Side: Image --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/JXI400N_Jandy_JXi_400_BTU_Natural_Pool_Heater_Nammer_4.jpg?v=1745680333\" alt=\"Product Image\" style=\"width: 100%; max-width: 600px; border-radius: 12px;\"\u003e\u003c\/div\u003e\n\u003c!-- Right Side: Text --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\n\u003ch2 data-end=\"478\"\u003e\u003cstrong\u003eFlexible Installation \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp style=\"font-size: 18px; line-height: 1.6;\"\u003eTop can be easily removed for increased accessibility and rotated 180 degrees so you never need to rotate headers. Also includes a flip up electrical panel for convenient setup and service.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 20px;\"\u003e\n\u003c!-- Left Side: Text --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px; font-size: 18px; line-height: 1.6;\"\u003e\n\u003ch2 data-end=\"478\" data-start=\"464\"\u003e\u003cstrong\u003eVersa Plumb® -Ready \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eInstallation in the Versa Plumb system reduces plumbing costs and increases energy efficiency, all while using the smallest footprint available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Right Side: Big Image --\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/JXI400N_Jandy_JXi_400_BTU_Natural_Pool_Heater_Nammer_5.jpg?v=1745680333\" alt=\"Product Image\" style=\"width: 100%; max-width: 1000px; height: auto; border-radius: 10px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecification\u003cstrong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes Versaflo Bypass - \u003c\/strong\u003eNo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth - \u003c\/strong\u003e22.1\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency - \u003c\/strong\u003e84%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Star\u003c\/strong\u003e \u003cstrong\u003e-\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExchanger -\u003c\/strong\u003e Cupronickel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Tipe - \u003c\/strong\u003eNatural Gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeaders -\u003c\/strong\u003e Hi-Temp Poly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight -\u003c\/strong\u003e 26.5\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Rate Bruh -\u003c\/strong\u003e 399K BTUH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. GPM -\u003c\/strong\u003e 100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin. GPM -\u003c\/strong\u003e 30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePool Surface Area -\u003c\/strong\u003e up to 600sft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Installation Required -\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Product -\u003c\/strong\u003e Automation Compatible\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Diameter -\u003c\/strong\u003e 8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight -\u003c\/strong\u003e 126 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth -\u003c\/strong\u003e 22.9\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1049\" data-start=\"1035\"\u003e\u003cstrong\u003eHighlights\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-end=\"1453\" data-start=\"1051\"\u003e\n\u003cstrong data-end=\"1071\" data-start=\"1051\"\u003eHigh Efficiency:\u003c\/strong\u003e 84% thermal efficiency meets DOE energy standards\u003cbr data-end=\"1124\" data-start=\"1121\"\u003e\u003cstrong data-end=\"1150\" data-start=\"1124\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1453\" data-start=\"1051\"\u003e\n\u003cstrong data-end=\"1150\" data-start=\"1124\"\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Easy to install and retrofit, weighing only 126 lbs\u003cbr data-end=\"1205\" data-start=\"1202\"\u003e\u003cstrong data-end=\"1226\" data-start=\"1205\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1453\" data-start=\"1051\"\u003e\n\u003cstrong data-end=\"1226\" data-start=\"1205\"\u003eAutomation-Ready:\u003c\/strong\u003e Fully integrates with AquaLink® for remote control via iAquaLink®\u003cbr data-end=\"1295\" data-start=\"1292\"\u003e\u003cstrong data-end=\"1315\" data-start=\"1295\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1453\" data-start=\"1051\"\u003e\n\u003cstrong data-end=\"1315\" data-start=\"1295\"\u003eFlow Rate Range:\u003c\/strong\u003e Compatible with flow rates from 30 to 100 GPM\u003cbr data-end=\"1364\" data-start=\"1361\"\u003e\u003cstrong data-end=\"1383\" data-start=\"1364\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1453\" data-start=\"1051\"\u003e\n\u003cstrong data-end=\"1383\" data-start=\"1364\"\u003eEnergy Savings:\u003c\/strong\u003e Optional VersaFlo™ Integrated Bypass for enhanced energy efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\" data-end=\"254\" data-start=\"235\"\u003eAdditional Info\u003c\/h3\u003e\n\u003ch2 class=\"\" data-end=\"324\" data-start=\"256\"\u003eOEM Jandy JXi 400N Natural Gas Pool \u0026amp; Spa Heater | 399,000 BTUs\u003c\/h2\u003e\n\u003cp class=\"\" data-end=\"602\" data-start=\"325\"\u003eThe Jandy JXi 400N delivers outstanding heating performance in a compact, lightweight design. Engineered for residential and commercial pools and spas, this heater offers 399,000 BTUs of powerful heating while maintaining high energy efficiency and easy automation integration.\u003c\/p\u003e\n\u003ch2 class=\"\" data-end=\"633\" data-start=\"604\"\u003eEnergy-Efficient Heating\u003c\/h2\u003e\n\u003ch4 class=\"\" data-end=\"664\" data-start=\"635\"\u003e84% Thermal Efficiency\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"743\" data-start=\"665\"\u003eExceeds DOE energy standards for an eco-friendly and cost-effective operation.\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"766\" data-start=\"745\"\u003eLow-NOx Design\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"841\" data-start=\"767\"\u003eReduces emissions for a more environmentally responsible heating solution.\u003c\/p\u003e\n\u003ch2 class=\"\" data-end=\"871\" data-start=\"843\"\u003eCompact and Lightweight\u003c\/h2\u003e\n\u003ch4 class=\"\" data-end=\"899\" data-start=\"873\"\u003eSpace-Saving Design\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"979\" data-start=\"900\"\u003eFits on a 2’ x 2’ pad with a 28% smaller footprint compared to similar heaters.\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"1002\" data-start=\"981\"\u003eEasy to Handle\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1071\" data-start=\"1003\"\u003eAt just 126 lbs, it simplifies storage, transport, and installation.\u003c\/p\u003e\n\u003ch2 class=\"\" data-end=\"1109\" data-start=\"1073\"\u003eSeamless Automation Integration\u003c\/h2\u003e\n\u003ch4 class=\"\" data-end=\"1138\" data-start=\"1111\"\u003eAquaLink® Compatible\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1217\" data-start=\"1139\"\u003eEasily connects with AquaLink® systems for control through the iAquaLink® app.\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"1243\" data-start=\"1219\"\u003eRemote Monitoring\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1317\" data-start=\"1244\"\u003eOperate your pool or spa heater from anywhere, anytime via mobile device.\u003c\/p\u003e\n\u003ch2 class=\"\" data-end=\"1354\" data-start=\"1319\"\u003eRetrofit-Friendly Installation\u003c\/h2\u003e\n\u003ch4 class=\"\" data-end=\"1403\" data-start=\"1356\"\u003eMasterTemp® and Max-E-Therm® Replacement\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1471\" data-start=\"1404\"\u003eDesigned for quick swaps without the need for plumbing adjustments.\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"1511\" data-start=\"1473\"\u003eRotatable Top and Flip-Up Panel\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1612\" data-start=\"1512\"\u003eTop can rotate 180° for easy access, and the flip-up electrical panel streamlines service and setup.\u003c\/p\u003e\n\u003ch2 class=\"\" data-end=\"1647\" data-start=\"1614\"\u003eEnhanced Performance Options\u003c\/h2\u003e\n\u003ch4 class=\"\" data-end=\"1694\" data-start=\"1649\"\u003eVersaFlo™ Integrated Bypass (Optional)\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1766\" data-start=\"1695\"\u003eProvides additional energy savings when heating is not always required.\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"1793\" data-start=\"1768\"\u003eVersa Plumb®-Ready\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1888\" data-start=\"1794\"\u003eIntegrates with Jandy’s Versa Plumb® system for reduced plumbing costs and maximum efficiency.\u003c\/p\u003e\n\u003ch2 class=\"\" data-end=\"1909\" data-start=\"1890\"\u003eSpecifications\u003c\/h2\u003e\n\u003ch4 class=\"\" data-end=\"1927\" data-start=\"1911\"\u003eFuel Type\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1939\" data-start=\"1928\"\u003eNatural Gas\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"1958\" data-start=\"1941\"\u003eInput Rate\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1968\" data-start=\"1959\"\u003e399K BTUH\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"1987\" data-start=\"1970\"\u003eEfficiency\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"2010\" data-start=\"1988\"\u003e84% Thermal Efficiency\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"2033\" data-start=\"2012\"\u003eHeat Exchanger\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"2040\" data-start=\"2034\"\u003eCupronickel\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"2058\" data-start=\"2042\"\u003eFlow Rate\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"2072\" data-start=\"2059\"\u003e30 to 100 GPM\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"2091\" data-start=\"2074\"\u003eDimensions\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"2132\" data-start=\"2092\"\u003e22.1\" Depth × 22.9\" Width × 26.5\" Height\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"2154\" data-start=\"2134\"\u003eVent Diameter\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"2157\" data-start=\"2155\"\u003e8\"\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"2172\" data-start=\"2159\"\u003eWeight\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"2180\" data-start=\"2173\"\u003e126 lbs\u003c\/p\u003e\n\u003ch4 class=\"\" data-end=\"2201\" data-start=\"2182\"\u003eInstallation\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"2265\" data-start=\"2202\"\u003eProfessional installation required; smart automation compatible\u003c\/p\u003e","brand":"Jandy","offers":[{"title":"Default Title","offer_id":50131975274784,"sku":"JXI400NN","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/JXI400NJandyJXi400BTUNaturalPoolHeaterDiscountPoolMart_4.jpg?v=1746116434","url":"https:\/\/discountpoolmart.com\/products\/jxi400nn-jandy-jxi-400-btu-natural-pool-spa-cuni-heater","provider":"Discount Pool Mart","version":"1.0","type":"link"}