{"product_id":"jandy-jxiq-jxiq400nk-natural-gas-pool-spa-heater-399-000-btu","title":"Jandy JXiQ JXIQ400NK Natural Gas Pool \u0026 Spa Heater - 399,000 BTU","description":"\u003cp\u003eJandy JXiQ JXIQ400NK smart natural gas pool and spa heater with VersaFlo integrated bypass, designed for efficient heating and advanced diagnostics.\u003c\/p\u003e\u003ch3\u003eModel details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHeating capacity: 399,000 BTU (400K class)\u003c\/li\u003e\n\u003cli\u003eFuel type: Natural Gas\u003c\/li\u003e\n\u003cli\u003eCopper heat exchanger tubes with polymer headers\u003c\/li\u003e\n\u003cli\u003eVersaFlo integrated bypass\u003c\/li\u003e\n\u003cli\u003eLow-NOx design\u003c\/li\u003e\n\u003cli\u003eSmart diagnostics and Bluetooth connectivity\u003c\/li\u003e\n\u003cli\u003eCompatible with Jandy AquaLink \/ iAquaLink automation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFuel and heater sizing\u003c\/h3\u003e\u003cp\u003eThis is the natural gas configuration. Confirm that your supply matches before ordering. Gas-heater BTU input is the fuel input rating; usable heat output also depends on thermal efficiency. Pool volume, starting water temperature, desired warm-up time and heat loss determine the capacity needed.\u003c\/p\u003e\u003ch3\u003eInstallation requirements\u003c\/h3\u003e\u003cp\u003eA qualified installer should confirm gas-line capacity and pressure, electrical supply, water flow, equipment clearances and installation altitude. Indoor installations need the correct manufacturer-approved venting arrangement. Check the existing pad and plumbing connection positions when replacing another heater; matching BTU size alone does not guarantee a direct fit.\u003c\/p\u003e\u003ch3\u003eComplete the installation\u003c\/h3\u003e\u003cp\u003eSite-specific gas fittings, electrical work, venting accessories and installation labor are separate. For remote control, verify the listed interface and any required network or automation hardware. Maintain the manufacturer's water-balance targets and keep the circulation system in good condition to protect the heat exchanger.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.jandy.com\/en\/commercial\/heaters\/jxiq\" target=\"_blank\" rel=\"noopener\"\u003eManufacturer specifications and installation documents\u003c\/a\u003e\u003c\/p\u003e","brand":"Mikan Supply","offers":[{"title":"Default","offer_id":44801152122922,"sku":"LAR-15-8521","price":4998.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/6875\/8570\/files\/jxiq400nk-product-angle-4.png?v=1789640513","url":"https:\/\/mikanpool.com\/products\/jandy-jxiq-jxiq400nk-natural-gas-pool-spa-heater-399-000-btu","provider":"MIKAN POOL SUPPLIES","version":"1.0","type":"link"}