{"product_id":"jandy-jxi-natural-gas-heater-399k-btu-copper-exchanger-jxi400n","title":"Jandy JXI Natural Gas Heater, 399K BTU,  Copper Exchanger | JXI400N","description":"\u003ch2 data-end=\"658\" data-start=\"637\" data-section-id=\"53drpp\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-end=\"1007\" data-start=\"659\"\u003eThe \u003cstrong data-end=\"706\" data-start=\"663\"\u003eJandy JXi™ Natural Gas Heater | JXI400N\u003c\/strong\u003e is a compact, high-performance gas pool and spa heater built for fast heat-up, energy-efficient operation, and flexible installation. With a powerful \u003cstrong data-end=\"878\" data-start=\"857\"\u003e399,000 BTU input\u003c\/strong\u003e, this heater is ideal for residential pools, spas, and pool\/spa combination systems that require dependable natural gas heating.\u003c\/p\u003e\n\u003cp data-end=\"1378\" data-start=\"1009\"\u003eThe JXi series is known for its ultra-compact \u003cstrong data-end=\"1090\" data-start=\"1055\"\u003e2' x 2' equipment pad footprint\u003c\/strong\u003e, lightweight cabinet, low-NOx burner design, and professional-friendly service access. Jandy lists the JXi platform as available in natural gas and propane models with \u003cstrong data-end=\"1285\" data-start=\"1259\"\u003e84% thermal efficiency\u003c\/strong\u003e, low-NOx design, and compact installation flexibility. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"1750\" data-start=\"1380\"\u003eThis model uses a \u003cstrong data-end=\"1423\" data-start=\"1398\"\u003ecopper heat exchanger\u003c\/strong\u003e for efficient heat transfer and supports high-flow pool applications when installed correctly. Distributor listings commonly identify JXI400N as a \u003cstrong data-end=\"1624\" data-start=\"1571\"\u003e399K BTU natural gas heater with copper exchanger\u003c\/strong\u003e, approximately \u003cstrong data-end=\"1650\" data-start=\"1640\"\u003e141 lb\u003c\/strong\u003e, and up to \u003cstrong data-end=\"1682\" data-start=\"1662\"\u003e100 GPM max flow\u003c\/strong\u003e, depending on listing source. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-end=\"1755\" data-start=\"1752\"\u003e\n\u003ch2 data-end=\"1790\" data-start=\"1757\" data-section-id=\"1offu8t\"\u003e⚠️ Important Purchase Notice\u003c\/h2\u003e\n\u003cp data-end=\"1917\" data-start=\"1791\"\u003e\u003cstrong\u003eThis product is intended to be purchased and installed by pool professionals. Product support is not provided to homeowners.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1982\" data-start=\"1919\"\u003e\u003cstrong\u003eReturns are not accepted on this or any electronic equipment.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2065\" data-start=\"1984\"\u003e\u003cstrong\u003eDamages to product from shipping will be covered and must be reported promptly.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2152\" data-start=\"2067\"\u003e\u003cstrong\u003eTo prevent possible damage during transit, we strongly recommend selecting Freight.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"2157\" data-start=\"2154\"\u003e\n\u003ch2 data-end=\"2173\" data-start=\"2159\" data-section-id=\"4fdhx7\"\u003eIdeal For\u003c\/h2\u003e\n\u003cul data-end=\"2575\" data-start=\"2174\"\u003e\n\u003cli data-end=\"2204\" data-start=\"2174\" data-section-id=\"hcxg5z\"\u003eResidential inground pools\u003c\/li\u003e\n\u003cli data-end=\"2241\" data-start=\"2205\" data-section-id=\"161auk2\"\u003ePool and spa combination systems\u003c\/li\u003e\n\u003cli data-end=\"2275\" data-start=\"2242\" data-section-id=\"1ey9rdf\"\u003eFast spa heat-up applications\u003c\/li\u003e\n\u003cli data-end=\"2312\" data-start=\"2276\" data-section-id=\"5m52se\"\u003eNatural gas pool heating systems\u003c\/li\u003e\n\u003cli data-end=\"2357\" data-start=\"2313\" data-section-id=\"1vs39ed\"\u003eReplacing older natural gas pool heaters\u003c\/li\u003e\n\u003cli data-end=\"2395\" data-start=\"2358\" data-section-id=\"1z6gxi\"\u003eEquipment pads with limited space\u003c\/li\u003e\n\u003cli data-end=\"2440\" data-start=\"2396\" data-section-id=\"q4l927\"\u003eCustomers needing 400K BTU class heating\u003c\/li\u003e\n\u003cli data-end=\"2488\" data-start=\"2441\" data-section-id=\"12ye7mz\"\u003ePool owners wanting digital heater controls\u003c\/li\u003e\n\u003cli data-end=\"2532\" data-start=\"2489\" data-section-id=\"1b7apg0\"\u003eLow-NOx heater replacement applications\u003c\/li\u003e\n\u003cli data-end=\"2575\" data-start=\"2533\" data-section-id=\"1euinj3\"\u003eProfessional pool heater installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2580\" data-start=\"2577\"\u003e\n\u003ch2 data-end=\"2599\" data-start=\"2582\" data-section-id=\"14at72t\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"3745\" data-start=\"2600\"\u003e\n\u003cli data-end=\"2685\" data-start=\"2600\" data-section-id=\"71u0c0\"\u003e\n\u003cstrong data-end=\"2623\" data-start=\"2602\"\u003e399,000 BTU input\u003c\/strong\u003e — delivers powerful heating performance for pools and spas.\u003c\/li\u003e\n\u003cli data-end=\"2778\" data-start=\"2686\" data-section-id=\"i4p3g7\"\u003e\n\u003cstrong data-end=\"2713\" data-start=\"2688\"\u003eNatural gas operation\u003c\/strong\u003e — designed for properties with compatible natural gas service.\u003c\/li\u003e\n\u003cli data-end=\"2860\" data-start=\"2779\" data-section-id=\"1m3zqe5\"\u003e\n\u003cstrong data-end=\"2799\" data-start=\"2781\"\u003eLow-NOx design\u003c\/strong\u003e — engineered for cleaner combustion and reduced emissions.\u003c\/li\u003e\n\u003cli data-end=\"2955\" data-start=\"2861\" data-section-id=\"1idt3f6\"\u003e\n\u003cstrong data-end=\"2890\" data-start=\"2863\"\u003eUltra-compact footprint\u003c\/strong\u003e — approximately 2' x 2' design helps save equipment pad space.\u003c\/li\u003e\n\u003cli data-end=\"3049\" data-start=\"2956\" data-section-id=\"1nf0uh1\"\u003e\n\u003cstrong data-end=\"2987\" data-start=\"2958\"\u003eDigital control interface\u003c\/strong\u003e — allows easy temperature adjustment and heater monitoring.\u003c\/li\u003e\n\u003cli data-end=\"3131\" data-start=\"3050\" data-section-id=\"1mt5tvb\"\u003e\n\u003cstrong data-end=\"3075\" data-start=\"3052\"\u003eElectronic ignition\u003c\/strong\u003e — provides reliable startup without a standing pilot.\u003c\/li\u003e\n\u003cli data-end=\"3220\" data-start=\"3132\" data-section-id=\"1q4vick\"\u003e\n\u003cstrong data-end=\"3159\" data-start=\"3134\"\u003eCopper heat exchanger\u003c\/strong\u003e — provides efficient heat transfer for fast water heating.\u003c\/li\u003e\n\u003cli data-end=\"3319\" data-start=\"3221\" data-section-id=\"eyy7q9\"\u003e\n\u003cstrong data-end=\"3260\" data-start=\"3223\"\u003e120\/240V electrical compatibility\u003c\/strong\u003e — supports common pool heater electrical configurations.\u003c\/li\u003e\n\u003cli data-end=\"3432\" data-start=\"3320\" data-section-id=\"11x6ypt\"\u003e\n\u003cstrong data-end=\"3354\" data-start=\"3322\"\u003eFlexible installation layout\u003c\/strong\u003e — JXi design supports easier replacement of many existing heater platforms.\u003c\/li\u003e\n\u003cli data-end=\"3531\" data-start=\"3433\" data-section-id=\"ep6smz\"\u003e\n\u003cstrong data-end=\"3466\" data-start=\"3435\"\u003eProfessional service access\u003c\/strong\u003e — cabinet design supports easier installation and maintenance.\u003c\/li\u003e\n\u003cli data-end=\"3631\" data-start=\"3532\" data-section-id=\"1o46k1k\"\u003e\n\u003cstrong data-end=\"3561\" data-start=\"3534\"\u003ePool and spa compatible\u003c\/strong\u003e — suitable for properly sized pool, spa, and pool\/spa applications.\u003c\/li\u003e\n\u003cli data-end=\"3745\" data-start=\"3632\" data-section-id=\"w84abz\"\u003e\n\u003cstrong data-end=\"3659\" data-start=\"3634\"\u003eAutomation compatible\u003c\/strong\u003e — works with compatible Jandy AquaLink automation systems when properly configured.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3750\" data-start=\"3747\"\u003e\n\u003ch2 data-end=\"3765\" data-start=\"3752\" data-section-id=\"33fg5d\"\u003eBenefits\u003c\/h2\u003e\n\u003cp data-end=\"4014\" data-start=\"3766\"\u003eThe Jandy JXI400N provides high-output natural gas heating in a compact and service-friendly design. Its 399K BTU input helps reduce pool and spa heat-up time, making it a strong choice for pool owners who want fast, dependable heating performance.\u003c\/p\u003e\n\u003cp data-end=\"4232\" data-start=\"4016\"\u003eThe compact JXi footprint is especially useful on crowded equipment pads or retrofit installations. Its low-NOx burner design supports cleaner operation, while the digital controls make temperature management simple.\u003c\/p\u003e\n\u003cp data-end=\"4412\" data-start=\"4234\"\u003eFor pool professionals, the JXI400N offers a reliable natural gas heater option with flexible installation features, strong performance, and Jandy’s proven pool heating platform.\u003c\/p\u003e\n\u003chr data-end=\"4417\" data-start=\"4414\"\u003e\n\u003ch2 data-end=\"4438\" data-start=\"4419\" data-section-id=\"1qhk4i3\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"5981\" data-start=\"4440\"\u003e\n\u003cthead data-end=\"4467\" data-start=\"4440\"\u003e\n\u003ctr data-end=\"4467\" data-start=\"4440\"\u003e\n\u003cth class=\"\" data-col-size=\"sm\" data-end=\"4456\" data-start=\"4440\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"\" data-col-size=\"md\" data-end=\"4467\" data-start=\"4456\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"5981\" data-start=\"4478\"\u003e\n\u003ctr data-end=\"4553\" data-start=\"4478\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4493\" data-start=\"4478\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4553\" data-start=\"4493\"\u003eJandy JXi Natural Gas Heater, 399K BTU, Copper Exchanger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4571\" data-start=\"4554\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4562\" data-start=\"4554\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4571\" data-start=\"4562\"\u003eJandy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4606\" data-start=\"4572\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4587\" data-start=\"4572\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4606\" data-start=\"4587\"\u003eFluidra \/ Jandy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4623\" data-start=\"4607\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4616\" data-start=\"4607\"\u003eSeries\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4623\" data-start=\"4616\"\u003eJXi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4649\" data-start=\"4624\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4638\" data-start=\"4624\"\u003ePart Number\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4649\" data-start=\"4638\"\u003eJXI400N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4667\" data-start=\"4650\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4656\" data-start=\"4650\"\u003eSKU\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4667\" data-start=\"4656\"\u003eJXI400N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4711\" data-start=\"4668\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4697\" data-start=\"4668\"\u003eDistributor Product Number\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4711\" data-start=\"4697\"\u003eLAR-15-500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4734\" data-start=\"4712\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4718\" data-start=\"4712\"\u003eUPC\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4734\" data-start=\"4718\"\u003e052337066495\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4777\" data-start=\"4735\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4750\" data-start=\"4735\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4777\" data-start=\"4750\"\u003ePool and spa gas heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4814\" data-start=\"4778\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4792\" data-start=\"4778\"\u003eHeater Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4814\" data-start=\"4792\"\u003eLow-NOx gas heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4842\" data-start=\"4815\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4827\" data-start=\"4815\"\u003eFuel Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4842\" data-start=\"4827\"\u003eNatural gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4870\" data-start=\"4843\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4855\" data-start=\"4843\"\u003eBTU Input\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4870\" data-start=\"4855\"\u003e399,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4895\" data-start=\"4871\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4883\" data-start=\"4871\"\u003eBTU Class\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4895\" data-start=\"4883\"\u003e400K BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4932\" data-start=\"4896\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4922\" data-start=\"4896\"\u003eHeat Exchanger Material\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4932\" data-start=\"4922\"\u003eCopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4972\" data-start=\"4933\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4949\" data-start=\"4933\"\u003eIgnition Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"4972\" data-start=\"4949\"\u003eElectronic ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5013\" data-start=\"4973\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4988\" data-start=\"4973\"\u003eControl Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5013\" data-start=\"4988\"\u003eDigital control panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5050\" data-start=\"5014\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5035\" data-start=\"5014\"\u003eThermal Efficiency\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5050\" data-start=\"5035\"\u003eApprox. 84%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5073\" data-start=\"5051\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5061\" data-start=\"5051\"\u003eVoltage\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5073\" data-start=\"5061\"\u003e120\/240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5098\" data-start=\"5074\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5082\" data-start=\"5074\"\u003ePhase\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5098\" data-start=\"5082\"\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5120\" data-start=\"5099\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5111\" data-start=\"5099\"\u003eFrequency\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5120\" data-start=\"5111\"\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5151\" data-start=\"5121\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5145\" data-start=\"5121\"\u003eWater Connection Size\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5151\" data-start=\"5145\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5250\" data-start=\"5152\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5174\" data-start=\"5152\"\u003eFlow Rate Reference\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5250\" data-start=\"5174\"\u003eCommonly listed up to 100 GPM max flow; verify installation requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5347\" data-start=\"5251\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5276\" data-start=\"5251\"\u003eMinimum Flow Reference\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5347\" data-start=\"5276\"\u003eApprox. 30–40 GPM depending on installation and bypass requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5387\" data-start=\"5348\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5368\" data-start=\"5348\"\u003eCabinet Footprint\u003c\/td\u003e\n\u003ctd data-end=\"5387\" data-start=\"5368\" data-col-size=\"md\"\u003eApprox. 2' x 2'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5421\" data-start=\"5388\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5412\" data-start=\"5388\"\u003eApprox. Cabinet Width\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5421\" data-start=\"5412\"\u003e22.9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5455\" data-start=\"5422\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5446\" data-start=\"5422\"\u003eApprox. Cabinet Depth\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5455\" data-start=\"5446\"\u003e22.1\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5490\" data-start=\"5456\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5481\" data-start=\"5456\"\u003eApprox. Cabinet Height\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5490\" data-start=\"5481\"\u003e26.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5579\" data-start=\"5491\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5516\" data-start=\"5491\"\u003eApprox. Product Weight\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5579\" data-start=\"5516\"\u003eApprox. 126–141 lb depending on packaging\/listing reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5656\" data-start=\"5580\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5604\" data-start=\"5580\"\u003eInstallation Location\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5656\" data-start=\"5604\"\u003eOutdoor or approved properly vented installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5751\" data-start=\"5657\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5684\" data-start=\"5657\"\u003eAutomation Compatibility\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5751\" data-start=\"5684\"\u003eCompatible with Jandy AquaLink systems when properly configured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5790\" data-start=\"5752\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5766\" data-start=\"5752\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5790\" data-start=\"5766\"\u003ePool and spa heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5828\" data-start=\"5791\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5812\" data-start=\"5791\"\u003eEquipment Category\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5828\" data-start=\"5812\"\u003ePool heaters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5873\" data-start=\"5829\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5866\" data-start=\"5829\"\u003eProfessional Installation Required\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5873\" data-start=\"5866\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5924\" data-start=\"5874\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5884\" data-start=\"5874\"\u003eReturns\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5924\" data-start=\"5884\"\u003eNot accepted on electronic equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5962\" data-start=\"5925\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5951\" data-start=\"5925\"\u003eShipping Recommendation\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5962\" data-start=\"5951\"\u003eFreight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"5981\" data-start=\"5963\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"5973\" data-start=\"5963\"\u003eSold As\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"5981\" data-start=\"5973\"\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-end=\"5986\" data-start=\"5983\"\u003e\n\u003ch2 data-end=\"6012\" data-start=\"5988\" data-section-id=\"czfsbl\"\u003eIncluded Components\u003c\/h2\u003e\n\u003cul data-end=\"6294\" data-start=\"6013\"\u003e\n\u003cli data-end=\"6070\" data-start=\"6013\" data-section-id=\"3l1t6a\"\u003e1 × Jandy JXi JXI400N natural gas pool and spa heater\u003c\/li\u003e\n\u003cli data-end=\"6107\" data-start=\"6071\" data-section-id=\"sbqwk\"\u003eIntegrated digital control panel\u003c\/li\u003e\n\u003cli data-end=\"6138\" data-start=\"6108\" data-section-id=\"19ufw2i\"\u003eElectronic ignition system\u003c\/li\u003e\n\u003cli data-end=\"6173\" data-start=\"6139\" data-section-id=\"1dn3064\"\u003eCopper heat exchanger assembly\u003c\/li\u003e\n\u003cli data-end=\"6241\" data-start=\"6174\" data-section-id=\"19ikta7\"\u003e2\" water connection components, depending on supplier packaging\u003c\/li\u003e\n\u003cli data-end=\"6294\" data-start=\"6242\" data-section-id=\"hpnzjy\"\u003eManufacturer-supplied installation documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"6568\" data-start=\"6296\"\u003e\u003cem data-end=\"6568\" data-start=\"6296\"\u003eNatural gas line, gas regulator if required, shutoff valve, electrical wiring, bonding materials, venting components, plumbing valves, unions, check valves, equipment pad materials, and installation labor are sold separately unless specifically included by the supplier.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-end=\"6573\" data-start=\"6570\"\u003e\n\u003ch2 data-end=\"6598\" data-start=\"6575\" data-section-id=\"1hui92y\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp data-end=\"6926\" data-start=\"6599\"\u003eThis heater must be installed by a qualified pool professional, licensed gas technician, or licensed contractor as required by local code. Proper installation requires correct natural gas supply sizing, electrical wiring, bonding, grounding, plumbing layout, water flow verification, combustion air, and venting where required.\u003c\/p\u003e\n\u003cp data-end=\"7125\" data-start=\"6928\"\u003eBefore installation, confirm that the fuel type is \u003cstrong data-end=\"6994\" data-start=\"6979\"\u003enatural gas\u003c\/strong\u003e, the gas supply can support a \u003cstrong data-end=\"7040\" data-start=\"7025\"\u003e399,000 BTU\u003c\/strong\u003e heater, and the electrical service is compatible with \u003cstrong data-end=\"7114\" data-start=\"7095\"\u003e120\/240V, 60 Hz\u003c\/strong\u003e operation.\u003c\/p\u003e\n\u003cp data-end=\"7401\" data-start=\"7127\"\u003eWater chemistry must be maintained within recommended ranges to protect the copper heat exchanger and preserve heater performance. Improper water balance, incorrect gas pressure, poor water flow, or improper installation can damage the heater and may void warranty coverage.\u003c\/p\u003e\n\u003chr data-end=\"7406\" data-start=\"7403\"\u003e\n\u003ch2 data-end=\"7432\" data-start=\"7408\" data-section-id=\"w1k9cu\"\u003eCustomer-Facing Q\u0026amp;A\u003c\/h2\u003e\n\u003cp data-end=\"7558\" data-start=\"7434\"\u003e\u003cstrong data-end=\"7467\" data-start=\"7434\"\u003eQ: What is the Jandy JXI400N?\u003c\/strong\u003e\u003cbr data-end=\"7470\" data-start=\"7467\"\u003eA: It is a Jandy JXi natural gas Low-NOx pool and spa heater rated at 399,000 BTU input.\u003c\/p\u003e\n\u003cp data-end=\"7612\" data-start=\"7560\"\u003e\u003cstrong data-end=\"7583\" data-start=\"7560\"\u003eQ: What is the SKU?\u003c\/strong\u003e\u003cbr data-end=\"7586\" data-start=\"7583\"\u003eA: The SKU is \u003cstrong data-end=\"7611\" data-start=\"7600\"\u003eJXI400N\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"7671\" data-start=\"7614\"\u003e\u003cstrong data-end=\"7637\" data-start=\"7614\"\u003eQ: What is the UPC?\u003c\/strong\u003e\u003cbr data-end=\"7640\" data-start=\"7637\"\u003eA: The UPC is \u003cstrong data-end=\"7670\" data-start=\"7654\"\u003e052337066495\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"7774\" data-start=\"7673\"\u003e\u003cstrong data-end=\"7719\" data-start=\"7673\"\u003eQ: What is the distributor product number?\u003c\/strong\u003e\u003cbr data-end=\"7722\" data-start=\"7719\"\u003eA: The distributor product number is \u003cstrong data-end=\"7773\" data-start=\"7759\"\u003eLAR-15-500\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"7857\" data-start=\"7776\"\u003e\u003cstrong data-end=\"7819\" data-start=\"7776\"\u003eQ: What fuel type does this heater use?\u003c\/strong\u003e\u003cbr data-end=\"7822\" data-start=\"7819\"\u003eA: This model uses \u003cstrong data-end=\"7856\" data-start=\"7841\"\u003enatural gas\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"7977\" data-start=\"7859\"\u003e\u003cstrong data-end=\"7891\" data-start=\"7859\"\u003eQ: Is this a propane heater?\u003c\/strong\u003e\u003cbr data-end=\"7894\" data-start=\"7891\"\u003eA: No. This is the natural gas model. Propane versions use different model numbers.\u003c\/p\u003e\n\u003cp data-end=\"8102\" data-start=\"7979\"\u003e\u003cstrong data-end=\"8015\" data-start=\"7979\"\u003eQ: How many BTUs is this heater?\u003c\/strong\u003e\u003cbr data-end=\"8018\" data-start=\"8015\"\u003eA: It is rated at \u003cstrong data-end=\"8057\" data-start=\"8036\"\u003e399,000 BTU input\u003c\/strong\u003e, commonly listed as a 400K BTU class heater.\u003c\/p\u003e\n\u003cp data-end=\"8236\" data-start=\"8104\"\u003e\u003cstrong data-end=\"8167\" data-start=\"8104\"\u003eQ: Does this heater have a copper or cupronickel exchanger?\u003c\/strong\u003e\u003cbr data-end=\"8170\" data-start=\"8167\"\u003eA: This model is commonly listed with a \u003cstrong data-end=\"8235\" data-start=\"8210\"\u003ecopper heat exchanger\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"8350\" data-start=\"8238\"\u003e\u003cstrong data-end=\"8270\" data-start=\"8238\"\u003eQ: Is this a Low-NOx heater?\u003c\/strong\u003e\u003cbr data-end=\"8273\" data-start=\"8270\"\u003eA: Yes. The JXi series is designed as a Low-NOx pool and spa heater platform.\u003c\/p\u003e\n\u003cp data-end=\"8438\" data-start=\"8352\"\u003e\u003cstrong data-end=\"8388\" data-start=\"8352\"\u003eQ: What voltage does it require?\u003c\/strong\u003e\u003cbr data-end=\"8391\" data-start=\"8388\"\u003eA: It supports \u003cstrong data-end=\"8418\" data-start=\"8406\"\u003e120\/240V\u003c\/strong\u003e electrical service.\u003c\/p\u003e\n\u003cp data-end=\"8538\" data-start=\"8440\"\u003e\u003cstrong data-end=\"8490\" data-start=\"8440\"\u003eQ: What size plumbing connections does it use?\u003c\/strong\u003e\u003cbr data-end=\"8493\" data-start=\"8490\"\u003eA: It uses standard \u003cstrong data-end=\"8537\" data-start=\"8513\"\u003e2\" water connections\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"8669\" data-start=\"8540\"\u003e\u003cstrong data-end=\"8570\" data-start=\"8540\"\u003eQ: Is this heater compact?\u003c\/strong\u003e\u003cbr data-end=\"8573\" data-start=\"8570\"\u003eA: Yes. The JXi series is designed with an ultra-compact footprint of approximately \u003cstrong data-end=\"8668\" data-start=\"8657\"\u003e2' x 2'\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"8828\" data-start=\"8671\"\u003e\u003cstrong data-end=\"8715\" data-start=\"8671\"\u003eQ: Can this connect to Jandy automation?\u003c\/strong\u003e\u003cbr data-end=\"8718\" data-start=\"8715\"\u003eA: Yes. It can connect to compatible Jandy AquaLink automation systems when properly installed and configured.\u003c\/p\u003e\n\u003cp data-end=\"8960\" data-start=\"8830\"\u003e\u003cstrong data-end=\"8873\" data-start=\"8830\"\u003eQ: Can a homeowner install this heater?\u003c\/strong\u003e\u003cbr data-end=\"8876\" data-start=\"8873\"\u003eA: No. This product is intended to be purchased and installed by pool professionals.\u003c\/p\u003e\n\u003cp data-end=\"9074\" data-start=\"8962\"\u003e\u003cstrong data-end=\"9003\" data-start=\"8962\"\u003eQ: Are returns accepted on this item?\u003c\/strong\u003e\u003cbr data-end=\"9006\" data-start=\"9003\"\u003eA: No. Returns are not accepted on this or any electronic equipment.\u003c\/p\u003e","brand":"Jandy","offers":[{"title":"Default Title","offer_id":53492822114614,"sku":"JXI400N","price":3799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/JNDJXI400N_0.avif?v=1766010343","url":"https:\/\/poolsupplydepot.net\/products\/jandy-jxi-natural-gas-heater-399k-btu-copper-exchanger-jxi400n","provider":"Pool Supply Depot","version":"1.0","type":"link"}