{"product_id":"hayward-h-series-200k-btu-pool-heater-w3h200fdn","title":"Hayward Universal H-Series Low NOx 200K BTU Natural Gas Pool Heater","description":"\u003cdiv class=\"ups-product-desc\" style=\"max-width: 100%; color: #1f2937; line-height: 1.7;\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg,#0f4c81 0%,#1273b8 100%); color: #ffffff; border-radius: 18px; padding: 24px 20px; margin: 0 0 24px 0;\"\u003e\n\u003cdiv style=\"font-size: 13px; text-transform: uppercase; opacity: 0.9; margin-bottom: 8px;\"\u003eNatural Gas Pool \u0026amp; Spa Heater\u003c\/div\u003e\n\u003ch2 style=\"margin: 0 0 10px 0; font-size: 30px; color: #ffffff;\"\u003eHayward Universal H Series Low NOx Natural Gas Heater - 200K BTU\u003c\/h2\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #ffffff;\"\u003e200K BTU Hayward Universal H-Series Low NOx natural gas pool heater for reliable residential pool and spa heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- WARRANTY --\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 14px; padding: 16px; margin-bottom: 28px;\"\u003e\n\u003ch3 style=\"margin: 0 0 8px 0; font-size: 22px; color: #1e3a8a;\"\u003eWarranty Information\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 16px;\"\u003e\u003cstrong\u003e1-Year Limited Manufacturer Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 6px 0 0 0; font-size: 14px; color: #475569;\"\u003eProfessional installation is recommended. Ultimate Pools provides local sizing guidance, installation coordination, and product support.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- INTRO --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHayward Universal H-Series Low NOx 200K BTU Natural Gas Pool Heater (W3H200FDN) \u003c\/strong\u003eis a natural gas pool heater designed to deliver dependable heating performance for residential pools and spas.\u003c\/p\u003e\n\u003cp\u003eThis Hayward heater helps maintain comfortable swimming temperatures, extend your pool season, and provide fast heat-up performance when properly sized and professionally installed.\u003c\/p\u003e\n\u003cp\u003eFor best results, confirm your heater size, fuel type, gas supply, plumbing layout, and installation requirements before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- MAIN FEATURES --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch3 style=\"font-size: 24px;\"\u003eMain Features\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); gap: 12px;\"\u003e\n\u003cdiv style=\"background: #f8fbff; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eUniversal H-Series Design\u003c\/strong\u003e\u003cbr\u003eCompact, service-friendly design built for reliable pool and spa heating.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fbff; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eLow NOx Performance\u003c\/strong\u003e\u003cbr\u003eEngineered to meet low NOx emission requirements for cleaner combustion.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fbff; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eFast Heating\u003c\/strong\u003e\u003cbr\u003eHigh-output gas heating helps bring pools and spas up to temperature quickly.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fbff; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eDigital Controls\u003c\/strong\u003e\u003cbr\u003eUser-friendly controls support accurate temperature management.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fbff; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e\u003cbr\u003eBuilt for outdoor equipment pad operation and long service life.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fbff; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eProfessional Support\u003c\/strong\u003e\u003cbr\u003eUltimate Pools can help confirm sizing, gas requirements, and installation details.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- BEST FOR --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch3 style=\"font-size: 24px;\"\u003eBest For\u003c\/h3\u003e\n\u003cdiv style=\"background: #f9fafb; border: 1px solid #e5e7eb; border-radius: 16px; padding: 20px;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003eResidential pool and spa heating\u003c\/li\u003e\n\u003cli\u003eNatural gas equipment pad installations\u003c\/li\u003e\n\u003cli\u003eReplacing an aging or undersized pool heater\u003c\/li\u003e\n\u003cli\u003ePool owners wanting faster water warm-up\u003c\/li\u003e\n\u003cli\u003eProfessional installation and sizing support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- SPECIFICATIONS --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch3 style=\"font-size: 24px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; border: 1px solid #e5e7eb; border-radius: 14px;\"\u003e\n\u003ctable style=\"width: 100%; min-width: 520px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003eW3H200FDN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003eHayward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003eUniversal H-Series Low NOx\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003eNatural Gas Pool \u0026amp; Spa Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eHeating Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e200K BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eFuel Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003eResidential pool and spa heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eHeater Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003eUniversal H-Series Low NOx\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eOther Available Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cp style=\"margin: 0 0 4px 0;\"\u003e\u003ca style=\"color: #1d4ed8; font-weight: 600; text-decoration: none;\" rel=\"noopener noreferrer\" href=\"https:\/\/ultimatepools.ca\/products\/hayward-h-series-150k-btu-pool-heater-w3h150fdn\"\u003eW3H150FDN\u003c\/a\u003e - 150K BTU\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px 0;\"\u003e\u003ca href=\"https:\/\/ultimatepools.ca\/products\/hayward-h250fdn-250k-btu-pool-heater\" rel=\"noopener noreferrer\" style=\"color: #1d4ed8; font-weight: 600; text-decoration: none;\"\u003eH250FDN\u003c\/a\u003e - 250K BTU (Expert Line with 3-Year Warranty)\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px 0;\"\u003e\u003ca style=\"color: #1d4ed8; font-weight: 600; text-decoration: none;\" rel=\"noopener noreferrer\" href=\"https:\/\/ultimatepools.ca\/products\/hayward-h-series-250k-btu-pool-heater-w3h250fdn\"\u003eW3H250FDN\u003c\/a\u003e - 250K BTU\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px 0;\"\u003e\u003ca style=\"color: #1d4ed8; font-weight: 600; text-decoration: none;\" rel=\"noopener noreferrer\" href=\"https:\/\/ultimatepools.ca\/products\/hayward-h-series-400k-btu-pool-heater-w3h400fdn\"\u003eW3H400FDN\u003c\/a\u003e - 400K BTU\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e1-Year Limited Manufacturer Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eManual\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0553\/2647\/4409\/files\/Hayward-H250FDN-Owners-Manual.pdf?v=1775683083\" rel=\"noopener noreferrer\" style=\"color: #1d4ed8; font-weight: 600; text-decoration: none;\" target=\"_blank\"\u003eDownload Product Manual\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FAQ --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch3 style=\"font-size: 24px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #e5e7eb; border-radius: 14px; overflow: hidden;\"\u003e\n\u003cdiv style=\"padding: 16px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eWhat size pool is this Hayward heater best for?\u003c\/strong\u003e\u003cbr\u003ePool heater sizing depends on pool volume, desired temperature rise, plumbing, gas supply, and seasonal conditions. Contact Ultimate Pools for sizing guidance.\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eIs professional installation recommended?\u003c\/strong\u003e\u003cbr\u003eYes. Gas pool heaters require proper gas sizing, venting clearances, plumbing, electrical connections, and local code compliance.\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eCan this heater be used for both pools and spas?\u003c\/strong\u003e\u003cbr\u003eYes, properly sized pool and spa heaters can support both pool and spa heating applications depending on the system layout.\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eHow do I confirm this is the right replacement heater?\u003c\/strong\u003e\u003cbr\u003eCheck your existing heater model, BTU rating, gas type, plumbing size, and equipment pad space. Ultimate Pools can help confirm compatibility before purchase.\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px;\"\u003e\n\u003cstrong\u003eWho handles product support?\u003c\/strong\u003e\u003cbr\u003eUltimate Pools provides local support for heater selection, installation questions, troubleshooting, and warranty guidance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":43867129675945,"sku":"W3H200FDN","price":3849.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/2647\/4409\/files\/H250FDN_4c1f7e6f-0eb2-445e-85af-6946a1b4736b.png?v=1764186197","url":"https:\/\/ultimatepools.ca\/products\/hayward-h-series-200k-btu-pool-heater-w3h200fdn","provider":"ultimatepools.ca","version":"1.0","type":"link"}