{"title":"Hayward Heaters","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eUpgrade to a Hayward pool \u0026amp; spa heater today! Browse our selection of reliable, energy-efficient gas heaters and heat pumps for the perfect swim.\u003c\/p\u003e","products":[{"product_id":"w3h135fdn-hayward-135k-btu-htr-nat-platinum","title":"W3H135FDN Hayward 135K Btu Htr Nat Platinum","description":"Hayward W3H135FDN H-Series Pool Heater, Beige","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975606771777,"sku":"PST-W3H135FDN","price":2399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015667.jpg?v=1773091468"},{"product_id":"w3h135fdp-hayward-135k-btu-htr-pro-platinum","title":"Hayward W3H135FDP Universal H-Series 135K BTU Propane Pool \u0026 Spa Gas Heater","description":"\u003cstyle\u003e\n  .hwh-wrapper { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1a1a1a; max-width: 100%; line-height: 1.6; }\n  .hwh-wrapper * { box-sizing: border-box; }\n  .hwh-hero { background: linear-gradient(135deg, #b22222 0%, #d94527 50%, #f57c2b 100%); 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margin-bottom: 12px; }\n  .hwh-faq-item h4 { margin: 0 0 8px; color: #b22222; font-size: 1.1em; }\n  .hwh-faq-item p { margin: 0; color: #555; }\n\n  .hwh-warning { background: #fff4e6; border-left: 4px solid #d94527; border-radius: 8px; padding: 24px; margin: 30px 0; }\n  .hwh-warning strong { color: #8b2500; font-size: 1.1em; }\n  .hwh-warning p { margin: 8px 0 0; color: #5a2000; font-size: 0.95em; line-height: 1.6; }\n\n  .hwh-cta { background: linear-gradient(135deg, #b22222 0%, #f57c2b 100%); color: #fff; padding: 50px 30px; border-radius: 16px; text-align: center; margin: 60px 0 20px; }\n  .hwh-cta h3 { font-size: 2em; margin: 0 0 12px; }\n  .hwh-cta p { font-size: 1.1em; opacity: 0.95; margin: 0 0 24px; }\n  .hwh-cta-perks { display: flex; justify-content: center; gap: 30px; flex-wrap: wrap; margin-top: 24px; }\n  .hwh-cta-perk { font-size: 0.95em; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hwh-wrapper\"\u003e\n\n  \u003c!-- HERO --\u003e\n  \u003cdiv class=\"hwh-hero\"\u003e\n    \u003ch1\u003eHayward H-Series 135K BTU\u003c\/h1\u003e\n    \u003cp class=\"tagline\"\u003eFaster Heat. Tougher Build. Smarter Operation.\u003c\/p\u003e\n    \u003cdiv class=\"badges\"\u003e\n      \u003cspan class=\"badge\"\u003e🔥 135,000 BTU\u003c\/span\u003e\n      \u003cspan class=\"badge\"\u003e⛽ Propane Gas\u003c\/span\u003e\n      \u003cspan class=\"badge\"\u003e🛡️ Cupro-Nickel\u003c\/span\u003e\n      \u003cspan class=\"badge\"\u003e🌱 Low NOx\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- INTRO --\u003e\n  \u003cp class=\"hwh-intro\"\u003eThe \u003cstrong\u003eHayward Universal H-Series W3H135FDP\u003c\/strong\u003e is a 135,000 BTU forced-draft propane gas heater built to deliver fast, reliable warmth for above-ground pools, in-ground pools, and spas. With its industry-leading hydraulic performance, durable cupro-nickel heat exchanger, and intuitive electronic control panel, the H-Series gets your water to swimming temperature quickly and keeps it there efficiently, season after season.\u003c\/p\u003e\n\n  \u003c!-- KEY STATS --\u003e\n  \u003cdiv class=\"hwh-stats\"\u003e\n    \u003cdiv class=\"hwh-stat\"\u003e\n\u003cspan class=\"num\"\u003e135K\u003c\/span\u003e\u003cspan class=\"label\"\u003eBTU Output\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"hwh-stat\"\u003e\n\u003cspan class=\"num\"\u003e2x\u003c\/span\u003e\u003cspan class=\"label\"\u003eVoltage Options\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"hwh-stat\"\u003e\n\u003cspan class=\"num\"\u003e100%\u003c\/span\u003e\u003cspan class=\"label\"\u003eCupro-Nickel\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"hwh-stat\"\u003e\n\u003cspan class=\"num\"\u003eLow\u003c\/span\u003e\u003cspan class=\"label\"\u003eNOx Certified\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"hwh-stat\"\u003e\n\u003cspan class=\"num\"\u003e3-in-1\u003c\/span\u003e\u003cspan class=\"label\"\u003ePool\/Spa\/AG\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- BIG FEATURE 1: FORCED DRAFT --\u003e\n  \u003cdiv class=\"hwh-big-feature\"\u003e\n    \u003cdiv\u003e\n      \u003ch3\u003eForced-Draft \u003cspan class=\"accent\"\u003eCombustion\u003c\/span\u003e\n\u003c\/h3\u003e\n      \u003cp\u003eUnlike atmospheric heaters that depend on natural airflow, the H-Series uses a precision-engineered forced-draft system to push air through the combustion chamber at a controlled rate. The result: consistent, full-power heating regardless of wind, weather, or stack conditions. No tall stack required, and no surprise performance drops on breezy days.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-visual\"\u003e\n      \u003cdiv class=\"hwh-visual-icon\"\u003e💨\u003c\/div\u003e\n      \u003cdiv class=\"hwh-visual-label\"\u003eWind-Independent Heating\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- BIG FEATURE 2: CUPRO-NICKEL --\u003e\n  \u003cdiv class=\"hwh-big-feature reverse\"\u003e\n    \u003cdiv\u003e\n      \u003ch3\u003eCupro-Nickel Heat Exchanger \u003cspan class=\"accent\"\u003eStandard\u003c\/span\u003e\n\u003c\/h3\u003e\n      \u003cp\u003eThe H-Series ships with Hayward's premium cupro-nickel heat exchanger as the standard configuration, not a paid upgrade. Cupro-nickel resists corrosion from unbalanced water chemistry, high-flow conditions, and salt-water systems far better than copper alone. The patented single-header V-baffle design delivers long life, fast heat transfer, and virtually no condensation.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-visual light\"\u003e\n      \u003cdiv class=\"hwh-visual-icon\"\u003e🛡️\u003c\/div\u003e\n      \u003cdiv class=\"hwh-visual-label\"\u003eBuilt to Last\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- BIG FEATURE 3: ELECTRONIC CONTROL --\u003e\n  \u003cdiv class=\"hwh-big-feature\"\u003e\n    \u003cdiv\u003e\n      \u003ch3\u003eIntuitive \u003cspan class=\"accent\"\u003eElectronic Control\u003c\/span\u003e\n\u003c\/h3\u003e\n      \u003cp\u003eAn easy-to-read digital LED control panel makes operation simple. Set separate pool and spa temperatures with dual thermostats, monitor heater status at a glance, and start your heater reliably every time thanks to electronic ignition. Less time fiddling with controls, more time enjoying warm water.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-visual dark\"\u003e\n      \u003cdiv class=\"hwh-visual-icon\"\u003e🎛️\u003c\/div\u003e\n      \u003cdiv class=\"hwh-visual-label\"\u003eSmart \u0026amp; Simple\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TECH CALLOUT --\u003e\n  \u003cdiv class=\"hwh-tech\"\u003e\n    \u003ch3\u003eEngineering That Matters\u003c\/h3\u003e\n    \u003cdiv class=\"hwh-tech-grid\"\u003e\n      \u003cdiv class=\"hwh-tech-item\"\u003e\n        \u003cdiv class=\"icon\"\u003e⚡\u003c\/div\u003e\n        \u003ch4\u003eSpeed-to-Heat\u003c\/h4\u003e\n        \u003cp\u003eIndustry-leading hydraulic performance heats water faster than competing units.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hwh-tech-item\"\u003e\n        \u003cdiv class=\"icon\"\u003e💧\u003c\/div\u003e\n        \u003ch4\u003eTotally Managed Flow\u003c\/h4\u003e\n        \u003cp\u003eOptimized water flow design lowers pump run time and saves energy.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hwh-tech-item\"\u003e\n        \u003cdiv class=\"icon\"\u003e🌍\u003c\/div\u003e\n        \u003ch4\u003eLow NOx Emissions\u003c\/h4\u003e\n        \u003cp\u003eMeets clean air standards in California (SCAQMD) and Texas (TNRCC) low-NOx zones.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hwh-tech-item\"\u003e\n        \u003cdiv class=\"icon\"\u003e🔌\u003c\/div\u003e\n        \u003ch4\u003eDual Voltage\u003c\/h4\u003e\n        \u003cp\u003eOperates on either 120V or 240V circuits. Flexible installation in any setup.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- APPLICATIONS --\u003e\n  \u003cdiv class=\"hwh-applications\"\u003e\n    \u003ch3\u003eBuilt For Every Backyard\u003c\/h3\u003e\n    \u003cdiv class=\"hwh-applications-row\"\u003e\n      \u003cdiv class=\"hwh-app-card\"\u003e\n        \u003cdiv class=\"hwh-app-card-icon\"\u003e🏊\u003c\/div\u003e\n        \u003ch4\u003eAbove-Ground Pools\u003c\/h4\u003e\n        \u003cp\u003ePerfectly sized for residential above-ground installations.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hwh-app-card\"\u003e\n        \u003cdiv class=\"hwh-app-card-icon\"\u003e🏖️\u003c\/div\u003e\n        \u003ch4\u003eIn-Ground Pools\u003c\/h4\u003e\n        \u003cp\u003eCompatible with smaller in-ground pools and spillover spas.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hwh-app-card\"\u003e\n        \u003cdiv class=\"hwh-app-card-icon\"\u003e♨️\u003c\/div\u003e\n        \u003ch4\u003eSpas \u0026amp; Hot Tubs\u003c\/h4\u003e\n        \u003cp\u003eDual thermostat lets you switch from pool to spa with the press of a button.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hwh-app-card\"\u003e\n        \u003cdiv class=\"hwh-app-card-icon\"\u003e🧂\u003c\/div\u003e\n        \u003ch4\u003eSalt Pools\u003c\/h4\u003e\n        \u003cp\u003eCupro-nickel construction handles salt-water chemistry without compromise.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FEATURE CARDS --\u003e\n  \u003ch2 class=\"hwh-section-title\"\u003eWhy Choose the H-Series\u003c\/h2\u003e\n  \u003cp class=\"hwh-section-sub\"\u003ePremium features that protect your investment.\u003c\/p\u003e\n\n  \u003cdiv class=\"hwh-features-grid\"\u003e\n    \u003cdiv class=\"hwh-feature-card\"\u003e\n      \u003cdiv class=\"hwh-feature-icon\"\u003e🔥\u003c\/div\u003e\n      \u003ch3\u003e135,000 BTU Output\u003c\/h3\u003e\n      \u003cp\u003ePowerful enough to heat smaller pools and spas quickly without overkill on energy consumption.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-feature-card\"\u003e\n      \u003cdiv class=\"hwh-feature-icon\"\u003e🛡️\u003c\/div\u003e\n      \u003ch3\u003eCorrosion Resistance\u003c\/h3\u003e\n      \u003cp\u003eCupro-nickel heat exchanger withstands the harshest pool chemistry, including high-salt environments.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-feature-card\"\u003e\n      \u003cdiv class=\"hwh-feature-icon\"\u003e⚙️\u003c\/div\u003e\n      \u003ch3\u003eV-Baffle Design\u003c\/h3\u003e\n      \u003cp\u003ePatented single-header V-baffle exchanger maximizes heat transfer while minimizing condensation buildup.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-feature-card\"\u003e\n      \u003cdiv class=\"hwh-feature-icon\"\u003e📺\u003c\/div\u003e\n      \u003ch3\u003eLED Digital Panel\u003c\/h3\u003e\n      \u003cp\u003eCrisp LED readout shows temperature, status, and diagnostic info at a glance.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-feature-card\"\u003e\n      \u003cdiv class=\"hwh-feature-icon\"\u003e🔄\u003c\/div\u003e\n      \u003ch3\u003eDual Thermostats\u003c\/h3\u003e\n      \u003cp\u003eSet independent pool and spa temperatures, then switch modes instantly.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-feature-card\"\u003e\n      \u003cdiv class=\"hwh-feature-icon\"\u003e🌿\u003c\/div\u003e\n      \u003ch3\u003eEco-Friendly Design\u003c\/h3\u003e\n      \u003cp\u003eLow NOx emissions and optimized water flow reduce environmental impact and operating costs.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- INSTALLATION WARNING --\u003e\n  \u003cdiv class=\"hwh-warning\"\u003e\n    \u003cstrong\u003e⚠️ Professional Installation Required\u003c\/strong\u003e\n    \u003cp\u003eGas pool heaters must be installed by a licensed gas technician to ensure proper venting, gas line sizing, and code compliance. Hayward requires professional installation for warranty validity. Improper installation can result in fire, carbon monoxide hazards, property damage, personal injury, and voided warranty coverage. Please verify your gas supply, electrical service, and local code requirements before purchase.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SPECS --\u003e\n  \u003cdiv class=\"hwh-specs\"\u003e\n    \u003ch3\u003eFull Specifications\u003c\/h3\u003e\n    \u003cdiv class=\"hwh-specs-grid\"\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eManufacturer\u003c\/span\u003e\u003cspan class=\"val\"\u003eHayward\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eSeries\u003c\/span\u003e\u003cspan class=\"val\"\u003eUniversal H-Series\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eModel\u003c\/span\u003e\u003cspan class=\"val\"\u003eW3H135FDP\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eHeating Output\u003c\/span\u003e\u003cspan class=\"val\"\u003e135,000 BTU\/hr\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eFuel Type\u003c\/span\u003e\u003cspan class=\"val\"\u003ePropane Gas\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eDraft Type\u003c\/span\u003e\u003cspan class=\"val\"\u003eForced Draft\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eHeat Exchanger\u003c\/span\u003e\u003cspan class=\"val\"\u003eCupro-Nickel (Standard)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eHeat Exchanger Design\u003c\/span\u003e\u003cspan class=\"val\"\u003eSingle-Header V-Baffle\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eIgnition\u003c\/span\u003e\u003cspan class=\"val\"\u003eElectronic\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eControl Panel\u003c\/span\u003e\u003cspan class=\"val\"\u003eDigital LED Display\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eThermostats\u003c\/span\u003e\u003cspan class=\"val\"\u003eDual (Pool + Spa)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eVoltage\u003c\/span\u003e\u003cspan class=\"val\"\u003e120V or 240V (Dual)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eEmissions\u003c\/span\u003e\u003cspan class=\"val\"\u003eLow NOx Compliant\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eCompliance\u003c\/span\u003e\u003cspan class=\"val\"\u003eSCAQMD \/ TNRCC Standards\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eStack Requirement\u003c\/span\u003e\u003cspan class=\"val\"\u003eNo High-Wind Stack Needed\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eSalt-Pool Compatible\u003c\/span\u003e\u003cspan class=\"val\"\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003ePool Type\u003c\/span\u003e\u003cspan class=\"val\"\u003eAbove-Ground \u0026amp; In-Ground\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eSpa Compatible\u003c\/span\u003e\u003cspan class=\"val\"\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eCertifications\u003c\/span\u003e\u003cspan class=\"val\"\u003eAHRI, ETL\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"hwh-spec-row\"\u003e\n\u003cspan class=\"key\"\u003eWarranty\u003c\/span\u003e\u003cspan class=\"val\"\u003eHayward Manufacturer Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003ch2 class=\"hwh-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hwh-faq\"\u003e\n    \u003cdiv class=\"hwh-faq-item\"\u003e\n      \u003ch4\u003eWhat size pool will the 135K BTU heater handle?\u003c\/h4\u003e\n      \u003cp\u003eThe 135,000 BTU H-Series is ideally sized for smaller above-ground pools (up to about 15,000 gallons), most spas, and small in-ground pools. For larger pools (20,000+ gallons), Hayward recommends stepping up to the 150K, 250K, 300K, or 400K BTU models for adequate heat rise.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-faq-item\"\u003e\n      \u003ch4\u003eWhat's the difference between W3H135FDP and W3H135FDN?\u003c\/h4\u003e\n      \u003cp\u003eThe \"FDP\" model runs on propane (LP) gas, while the \"FDN\" model runs on natural gas. Both are identical otherwise. Choose based on your home's gas supply — propane for tank-fed installations, natural gas for line-fed.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-faq-item\"\u003e\n      \u003ch4\u003eCan I install this myself?\u003c\/h4\u003e\n      \u003cp\u003eNo. Gas pool heaters must be installed by a licensed gas technician for safety and warranty compliance. Installation involves gas line sizing, proper venting, electrical hookup, and inspection by local code authorities.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-faq-item\"\u003e\n      \u003ch4\u003eDoes it work with salt-chlorinated pools?\u003c\/h4\u003e\n      \u003cp\u003eYes. The H-Series ships with a cupro-nickel heat exchanger as the standard configuration, which provides excellent corrosion resistance against salt-water chemistry and unbalanced pool water.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hwh-faq-item\"\u003e\n      \u003ch4\u003eHow long does it take to heat a pool?\u003c\/h4\u003e\n      \u003cp\u003eHeating time depends on starting temperature, target temperature, pool size, ambient air temperature, and pool cover usage. A general guideline: a 135K BTU heater raises a 10,000-gallon pool by about 1°F per hour under typical conditions. A pool cover dramatically reduce\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975606870081,"sku":"PST-W3H135FDP","price":2399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015668.jpg?v=1773084522"},{"product_id":"w3h150fdn-hayward-150k-btu-univ-h-series-nat-low-nox","title":"W3H150FDN Hayward 150K Btu Univ H Series Nat Low Nox","description":"Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975606968385,"sku":"PST-W3H150FDN","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015669.jpg?v=1773095047"},{"product_id":"w3h150fdp-hayward-150k-btu-univ-h-series-lp-low-nox","title":"W3H150FDP Hayward 150K Btu Univ H Series Lp Low Nox","description":"Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607066689,"sku":"PST-W3H150FDP","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015670.jpg?v=1773079721"},{"product_id":"w3h200fdn-hayward-200k-btu-univ-h-series-nat-low-nox","title":"W3H200FDN Hayward 200K Btu Univ H Series Nat Low Nox","description":"Hayward W3H200FDN Universal H-Series 200,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607164993,"sku":"PST-W3H200FDN","price":3699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015671.jpg?v=1773094109"},{"product_id":"w3h200fdp-hayward-200k-btu-univ-h-series-lp-low-nox","title":"W3H200FDP Hayward 200K Btu Univ H Series Lp Low Nox","description":"Hayward W3H200FDP Universal H-Series 200,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607328833,"sku":"PST-W3H200FDP","price":3699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015672.jpg?v=1773080375"},{"product_id":"w3h250fdn-hayward-250k-btu-univ-h-series-nat-low-nox","title":"W3H250FDN Hayward 250K Btu Univ H Series Nat Low Nox","description":"Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607459905,"sku":"PST-W3H250FDN","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015673.jpg?v=1773088025"},{"product_id":"w3h250fdp-hayward-250k-btu-univ-h-series-lp-low-nox","title":"W3H250FDP Hayward 250K Btu Univ H Series Lp Low Nox","description":"\u003cp\u003eHayward W3H250FDP Universal H-Series 250,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas\u003c\/p\u003e\r\u003cp\u003eThe Universal H-Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional.\u003c\/p\u003e\r\u003cul\u003e\r\u003cli\u003eStandard cupro nickel heat exchanger\u003c\/li\u003e\r\u003cli\u003eExcellent salt water and chemical corrosion resistance\u003c\/li\u003e\r\u003cli\u003eExclusive \"Totally Managed\" cupro nickel heat exchanger water flow\u003c\/li\u003e\r\u003cli\u003eSame water velocity through all tubes for faster heating\u003c\/li\u003e\r\u003cli\u003ePatented header by-pass design\u003c\/li\u003e\r\u003cli\u003eReduction in pump run-time results in significant cost savings\u003c\/li\u003e\r\u003cli\u003e2in x 2 1\/2in CPVC union plumbing connections\u003c\/li\u003e\r\u003cli\u003eCommon union for installation or service, adapts to larger plumbing recommended for greater efficiencies\u003c\/li\u003e\r\u003cli\u003eLow NOx emissions - meets clean air quality standards\u003c\/li\u003e\r\u003c\/ul\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607558209,"sku":"PST-W3H250FDP","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015674.jpg?v=1773081036"},{"product_id":"w3h400fdn-hayward-400k-btu-univ-h-series-nat-low-nox","title":"W3H400FDN Hayward 400K Btu Univ H Series Nat Low Nox","description":"Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607656513,"sku":"PST-W3H400FDN","price":5099.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015675.jpg?v=1773088721"},{"product_id":"w3h400fdp-hayward-400k-btu-univ-h-series-lp-low-nox","title":"W3H400FDP Hayward 400K Btu Univ H Series Lp Low Nox","description":"Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607754817,"sku":"PST-W3H400FDP","price":5099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015676.jpg?v=1773082422"},{"product_id":"w3hp21004t-hayward-95k-btu-240v-50a-heatpro-heat-pump","title":"W3HP21004T Hayward 95K Btu 240V 50A Heatpro Heat Pump","description":"Hayward W3HP21004T HeatPro 95,000 BTU Pool Heat Pump for In-Ground Pools","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975607885889,"sku":"PST-W3HP21004T","price":5699.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015677.jpg?v=1773092067"},{"product_id":"w3hp21404t-hayward-140k-btu-240v-50a-heatpro-heat-pump","title":"W3HP21404T Hayward 140K Btu 240V 50A Heatpro Heat Pump","description":"Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools","brand":"Hayward","offers":[{"title":"Default Title","offer_id":41975608148033,"sku":"PST-W3HP21404T","price":6999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1015678.jpg?v=1773084941"},{"product_id":"w3hp50ha2-hayward-heat-pump-50k-btu-horiz-fan","title":"Hayward 50,000 BTU Heat Pump Horizontal Fan Side-Discharge W3HP50HA2","description":"\u003cp data-start=\"273\" data-end=\"563\"\u003eThe Hayward W3HP50HA2 heat pump is the perfect solution for extending your swim season while keeping energy costs low. 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 }  .hwhp110-app-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(178,34,34,0.14); }  .hwhp110-app-card h4 { margin: 0 0 8px; color: #b22222; font-size: 1.2em; }  .hwhp110-app-card p { margin: 0; color: #444; font-size: 0.98em; }  \/* 6-card feature grid *\/  .hwhp110-feature-grid {    display: grid;    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));    gap: 20px;  }  .hwhp110-feature-card {    background: #fff;    border: 1px solid #e1e6ed;    border-radius: 12px;    padding: 24px;    transition: transform 0.2s, box-shadow 0.2s;  }  .hwhp110-feature-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(178,34,34,0.14); }  .hwhp110-emoji { font-size: 2em; }  .hwhp110-feature-card h5 { margin: 12px 0 8px; font-size: 1.1em; color: #1a1a1a; }  .hwhp110-feature-card p { margin: 0; color: #444; font-size: 0.95em; }  \/* Warning *\/  .hwhp110-warning {    background: #fff7e0;    border-left: 6px solid #f5a623;    border-radius: 12px;    padding: 24px 28px;    margin-bottom: 48px;  }  .hwhp110-warning h4 { margin: 0 0 8px; color: #8a5b00; font-size: 1.15em; }  .hwhp110-warning p { margin: 0; color: #5a3d00; }  \/* Spec grid *\/  .hwhp110-spec-grid {    display: grid;    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));    background: #f7f8fc;    border-radius: 16px;    overflow: hidden;  }  .hwhp110-spec-row {    display: flex;    justify-content: space-between;    gap: 12px;    padding: 14px 20px;    border-bottom: 1px solid #e1e6ed;    font-size: 0.98em;  }  .hwhp110-spec-key { font-weight: 600; color: #b22222; }  .hwhp110-spec-val { color: #1a1a1a; text-align: right; }  \/* FAQ *\/  .hwhp110-faq-card {    background: #fff;    border: 1px solid #e1e6ed;    border-radius: 12px;    padding: 24px 28px;    margin-bottom: 16px;  }  .hwhp110-faq-card h4 { margin: 0 0 8px; color: #b22222; font-size: 1.1em; }  .hwhp110-faq-card p { margin: 0; color: #333; }  \/* CTA *\/  .hwhp110-cta {    background: linear-gradient(135deg, #b22222 0%, #f57c2b 100%);    color: #fff;    border-radius: 16px;    padding: 50px 40px;    text-align: center;  }  .hwhp110-cta h2 { font-size: 2em; margin: 0 0 12px; }  .hwhp110-cta p { margin: 0 0 24px; font-size: 1.1em; opacity: 0.95; }  .hwhp110-perks { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }  .hwhp110-perk {    background: rgba(255,255,255,0.18);    backdrop-filter: blur(10px);    -webkit-backdrop-filter: blur(10px);    border: 1px solid rgba(255,255,255,0.3);    padding: 10px 20px;    border-radius: 50px;    font-size: 0.95em;    font-weight: 600;  }  \/* Responsive *\/  @media (max-width: 700px) {    .hwhp110-hero h1 { font-size: 2em; }    .hwhp110-stats { grid-template-columns: repeat(2, 1fr); }    .hwhp110-feature { grid-template-columns: 1fr; }    .hwhp110-feature.hwhp110-reverse .hwhp110-feature-visual { order: 0; }  }\u003c\/style\u003e\u003cdiv class=\"hwhp110-wrap\"\u003e  \u003csection class=\"hwhp110-hero\"\u003e    \u003ch1\u003eHayward W3HP21105T HeatPro 110,000 BTU Heat Only Pool Heat Pump\u003c\/h1\u003e    \u003cp class=\"hwhp110-tagline\"\u003eExtend your swim season for less.\u003c\/p\u003e    \u003cdiv class=\"hwhp110-badges\"\u003e      \u003cspan class=\"hwhp110-badge\"\u003eAuthorized Hayward Dealer\u003c\/span\u003e\u003cspan class=\"hwhp110-badge\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"hwhp110-badge\"\u003e110K BTU Output\u003c\/span\u003e\u003cspan class=\"hwhp110-badge\"\u003e5.7 COP Efficiency\u003c\/span\u003e    \u003c\/div\u003e  \u003c\/section\u003e  \u003cp class=\"hwhp110-intro\"\u003eThe \u003cstrong\u003eHayward W3HP21105T HeatPro Heat Pump (SKU PST-W3HP21105T)\u003c\/strong\u003e delivers \u003cstrong\u003e110,000 BTU\u003c\/strong\u003e of heat-only output for inground pools up to roughly 20,000 gallons, using ambient air instead of gas to push your water to swim-ready temperatures. Hayward's microchannel heat exchanger (MCHX) cuts braze joints by 85%, drops the cabinet weight to \u003cstrong\u003e230 lbs\u003c\/strong\u003e, and lets the unit pull heat from outside air down to \u003cstrong\u003e40F\u003c\/strong\u003e. You get gas-pump heating without a gas bill, on a 230V single-phase circuit you already have at the equipment pad.\u003c\/p\u003e  \u003csection class=\"hwhp110-stats\"\u003e    \u003cdiv class=\"hwhp110-stat\"\u003e\n\u003cdiv class=\"hwhp110-stat-value\"\u003e110K BTU\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat-label\"\u003eHeating Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat\"\u003e\n\u003cdiv class=\"hwhp110-stat-value\"\u003e5.7 COP\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat-label\"\u003eEfficiency\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat\"\u003e\n\u003cdiv class=\"hwhp110-stat-value\"\u003e40F\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat-label\"\u003eLow Ambient\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat\"\u003e\n\u003cdiv class=\"hwhp110-stat-value\"\u003e230V\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat-label\"\u003eSingle Phase\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat\"\u003e\n\u003cdiv class=\"hwhp110-stat-value\"\u003e230 lbs\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-stat-label\"\u003eCabinet Weight\u003c\/div\u003e\n\u003c\/div\u003e  \u003c\/section\u003e    \u003csection class=\"hwhp110-feature\"\u003e    \u003cdiv class=\"hwhp110-visual hwhp110-feature-visual\"\u003e      \u003cspan class=\"hwhp110-visual-icon\"\u003e🌡️\u003c\/span\u003e      \u003cspan class=\"hwhp110-visual-label\"\u003eMCHX Core\u003c\/span\u003e    \u003c\/div\u003e    \u003cdiv\u003e      \u003ch3\u003eMicrochannel \u003cspan class=\"hwhp110-accent\"\u003eEfficiency\u003c\/span\u003e , Built for the Pad\u003c\/h3\u003e      \u003cp\u003eThe HeatPro \u003cstrong\u003eMCHX heat exchanger\u003c\/strong\u003e replaces traditional tube-and-fin coils with a microchannel design that cuts braze joints by 85% and trims cabinet weight by up to 50 lbs. Less metal, less refrigerant charge, more surface area in contact with the air. The result is a quieter, lighter unit that pulls more heat out of every cubic foot of air the fan moves, while staying tough enough to survive years on a sunbaked equipment pad.\u003c\/p\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003csection class=\"hwhp110-feature hwhp110-reverse\"\u003e    \u003cdiv class=\"hwhp110-visual hwhp110-visual-light hwhp110-feature-visual\"\u003e      \u003cspan class=\"hwhp110-visual-icon\"\u003e❄️\u003c\/span\u003e      \u003cspan class=\"hwhp110-visual-label\"\u003eLow Ambient\u003c\/span\u003e    \u003c\/div\u003e    \u003cdiv\u003e      \u003ch3\u003ePatented \u003cspan class=\"hwhp110-accent\"\u003eDefrost\u003c\/span\u003e  Algorithm Stretches the Season\u003c\/h3\u003e      \u003cp\u003eMost heat pumps fall off a cliff once outside air drops below 50F. The W3HP21105T's \u003cstrong\u003epatent-pending defrost algorithm\u003c\/strong\u003e keeps capacity up where competitors stall, with rated operation all the way down to \u003cstrong\u003e40F ambient\u003c\/strong\u003e. That means real heating in early spring and late fall, not a unit that runs all day and barely budges the thermometer. You add weeks of swim time on both ends of the calendar without touching your gas line.\u003c\/p\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003csection class=\"hwhp110-feature\"\u003e    \u003cdiv class=\"hwhp110-visual hwhp110-visual-dark hwhp110-feature-visual\"\u003e      \u003cspan class=\"hwhp110-visual-icon\"\u003e🛡️\u003c\/span\u003e      \u003cspan class=\"hwhp110-visual-label\"\u003eTCP Armor\u003c\/span\u003e    \u003c\/div\u003e    \u003cdiv\u003e      \u003ch3\u003eTCP Coating \u003cspan class=\"hwhp110-accent\"\u003eSurvives\u003c\/span\u003e  Harsh Climates\u003c\/h3\u003e      \u003cp\u003eHayward's \u003cstrong\u003eTitanium Coating Protection (TCP)\u003c\/strong\u003e was developed for Naval Air Command to resist salt air, pool chemistry overspray, and UV. The whole cabinet, fan grille, and exposed cabinet fasteners are treated, so a HeatPro sitting eight feet from a saltwater pool in coastal Florida looks the same in year five as it did on day one. Pair that with the corrosion-resistant MCHX coil and you get a heat pump that ages like equipment is supposed to.\u003c\/p\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003csection class=\"hwhp110-section\"\u003e    \u003ch2\u003eWho It's For\u003c\/h2\u003e    \u003cdiv class=\"hwhp110-app-grid\"\u003e      \u003cdiv class=\"hwhp110-app-card\"\u003e\n\u003ch4\u003eResidential Inground Pools\u003c\/h4\u003e\n\u003cp\u003eSized for typical 15,000 to 20,000 gallon backyard pools that want a 5 to 10 degree lift over normal swim season ambient temps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-app-card\"\u003e\n\u003ch4\u003eVinyl, Gunite, Fiberglass\u003c\/h4\u003e\n\u003cp\u003eThe 2 inch plumbing union connections drop straight into any standard inground equipment pad, no shell type restrictions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-app-card\"\u003e\n\u003ch4\u003eSolar Backup or Replacement\u003c\/h4\u003e\n\u003cp\u003ePairs well with solar panels as a backup heater for cloudy stretches, or replaces aging solar entirely with predictable, on-demand heat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-app-card\"\u003e\n\u003ch4\u003eSeason Extension\u003c\/h4\u003e\n\u003cp\u003eIdeal for owners who want March to November swim time in transitional climates without the running cost of a gas heater.\u003c\/p\u003e\n\u003c\/div\u003e    \u003c\/div\u003e  \u003c\/section\u003e  \u003csection class=\"hwhp110-section\"\u003e    \u003ch2\u003eWhy PST Customers Pick This\u003c\/h2\u003e    \u003cdiv class=\"hwhp110-feature-grid\"\u003e      \u003cdiv class=\"hwhp110-feature-card\"\u003e\n\u003cdiv class=\"hwhp110-emoji\"\u003e🔥\u003c\/div\u003e\n\u003ch5\u003e110,000 BTU Output\u003c\/h5\u003e\n\u003cp\u003eEnough capacity for ~20,000 gallon pools, with a typical 1 to 1.5 degree per hour rise on a 20,000 gallon pool in 75F ambient.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-feature-card\"\u003e\n\u003cdiv class=\"hwhp110-emoji\"\u003e⚡\u003c\/div\u003e\n\u003ch5\u003e5.7 Heating COP\u003c\/h5\u003e\n\u003cp\u003eYou get about \u003cstrong\u003e5.7 units of heat for every unit of electricity\u003c\/strong\u003e, which is roughly 5x more efficient than electric resistance heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-feature-card\"\u003e\n\u003cdiv class=\"hwhp110-emoji\"\u003e🧰\u003c\/div\u003e\n\u003ch5\u003e2 in Union Plumbing\u003c\/h5\u003e\n\u003cp\u003eStandard 2 inch threaded unions make swaps and winterizations straightforward for any pool tech.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-feature-card\"\u003e\n\u003cdiv class=\"hwhp110-emoji\"\u003e📏\u003c\/div\u003e\n\u003ch5\u003eCompact Square Footprint\u003c\/h5\u003e\n\u003cp\u003e30.5 in W x 33.6 in D cabinet with a 44 in height fits the same pad space as competing 100K class heat pumps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-feature-card\"\u003e\n\u003cdiv class=\"hwhp110-emoji\"\u003e🛡️\u003c\/div\u003e\n\u003ch5\u003eTCP Cabinet Coating\u003c\/h5\u003e\n\u003cp\u003eNaval-grade Titanium Coating Protection resists salt air and pool chemistry, ideal for coastal and saltwater pool installs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-feature-card\"\u003e\n\u003cdiv class=\"hwhp110-emoji\"\u003e🌊\u003c\/div\u003e\n\u003ch5\u003eQuiet Single-Speed Fan\u003c\/h5\u003e\n\u003cp\u003eTop-discharge fan and MCHX coil move air efficiently, with sound levels low enough for backyards close to patios and neighbors.\u003c\/p\u003e\n\u003c\/div\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003cdiv class=\"hwhp110-warning\"\u003e    \u003ch4\u003eInstallation Notice\u003c\/h4\u003e    \u003cp\u003eThe W3HP21105T requires a dedicated \u003cstrong\u003e230V single-phase circuit with a 40 amp maximum breaker\u003c\/strong\u003e, wired per \u003cstrong\u003eNEC Article 680\u003c\/strong\u003e for pool equipment, with proper bonding to the equipotential grid. Maintain \u003cstrong\u003e12 in side and rear clearance and 72 in vertical clearance\u003c\/strong\u003e for airflow. Installation by a licensed electrician and pool professional is required to keep the Hayward warranty valid.\u003c\/p\u003e  \u003c\/div\u003e    \u003csection class=\"hwhp110-section\"\u003e    \u003ch2\u003eFull Specifications\u003c\/h2\u003e    \u003cdiv class=\"hwhp110-spec-grid\"\u003e      \u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eManufacturer\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eHayward\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eModel \/ MPN\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eW3HP21105T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eSKU\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003ePST-W3HP21105T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eUPC\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e0610377424530\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eProduct Type\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003ePool Heat Pump, Heat Only\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eSeries\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eHeatPro MCHX\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eHeating Capacity\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e110,000 BTU\/hr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eHeating COP\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e5.7\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eMinimum Operating Temperature\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e40 F ambient\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eHeat Exchanger\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eMicrochannel (MCHX)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eCabinet Coating\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eTitanium Coating Protection (TCP)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eVoltage\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e230V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003ePhase \/ Frequency\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eSingle Phase, 60 Hz\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eMaximum Breaker\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e40 Amps\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003ePlumbing Connection\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e2 in Union\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eRefrigerant\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eR-410A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eCompressor\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eSingle-Speed Rotary\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eDimensions (H x W x D)\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e44 in x 30.5 in x 33.6 in\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eProduct Weight\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e230 lbs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eShipping Weight\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e250 lbs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eClearance, Side and Rear\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e12 in\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eClearance, Vertical\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e72 in\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003ePool Type\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003eInground\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hwhp110-spec-row\"\u003e\n\u003cspan class=\"hwhp110-spec-key\"\u003eWarranty\u003c\/span\u003e\u003cspan class=\"hwhp110-spec-val\"\u003e5-Year Parts (Hayward HeatPro)\u003c\/span\u003e\n\u003c\/div\u003e    \u003c\/div\u003e  \u003c\/section\u003e  \u003csection class=\"hwhp110-section\"\u003e    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e        \u003cdiv class=\"hwhp110-faq-card\"\u003e      \u003ch4\u003eWhat size pool does the W3HP21105T heat?\u003c\/h4\u003e      \u003cp\u003eAt 110,000 BTU\/hr, this heat pump comfortably maintains pools up to about \u003cstrong\u003e20,000 gallons\u003c\/strong\u003e in most climates. For larger pools or aggressive temperature targets, step up to the \u003cstrong\u003e140K BTU\u003c\/strong\u003e HP21404T or \u003cstrong\u003e140K square-platform\u003c\/strong\u003e model. Pool cover use can effectively double the gallons this unit holds at temperature.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"hwhp110-faq-card\"\u003e      \u003ch4\u003eWhat is the difference between the W3HP21105T and the HP21105T?\u003c\/h4\u003e      \u003cp\u003eFunctionally they are the same unit. The \u003cstrong\u003eW3 prefix\u003c\/strong\u003e identifies the model as sold through Hayward's authorized residential distribution channel, which is the channel that carries the full \u003cstrong\u003ewarranty\u003c\/strong\u003e. The HP21105T (without W3) is the open-line or pro-only version sold through wholesale-only channels.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"hwhp110-faq-card\"\u003e      \u003ch4\u003eWhat is the difference between Heat Only and Heat \/ Chill models?\u003c\/h4\u003e      \u003cp\u003eThe W3HP21105T is \u003cstrong\u003eheat only\u003c\/strong\u003e, designed to raise pool temperature. The \u003cstrong\u003eHP31105T Heat\/Chill\u003c\/strong\u003e version reverses the cycle to also cool the pool a few degrees in extreme summer heat. If you only need warming, the heat-only model costs less and uses fewer internal components.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"hwhp110-faq-card\"\u003e      \u003ch4\u003eCan I install this heat pump myself?\u003c\/h4\u003e      \u003cp\u003eMost local codes require a \u003cstrong\u003elicensed electrician\u003c\/strong\u003e for the 230V single-phase 40A circuit (NEC Article 680 bonding rules apply). The 2 in plumbing connections are straightforward for a handy owner or pool pro. We strongly recommend a professional install to keep the Hayward 5-year parts warranty valid.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"hwhp110-faq-card\"\u003e      \u003ch4\u003eHow fast will it heat my pool?\u003c\/h4\u003e      \u003cp\u003eA typical 20,000 gallon pool gains \u003cstrong\u003e1 to 1.5 F per hour\u003c\/strong\u003e with this unit at 75F ambient air. Cooler outside air slows the rate. A \u003cstrong\u003esolar or thermal pool cover\u003c\/strong\u003e at night is the single biggest improvement you can make, often cutting runtime in half.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"hwhp110-faq-card\"\u003e      \u003ch4\u003eDoes it work in cold weather?\u003c\/h4\u003e      \u003cp\u003eThe HeatPro is rated for operation down to \u003cstrong\u003e40F ambient air\u003c\/strong\u003e. Below that the patented defrost algorithm protects the coil but capacity drops sharply. For climates with winters below freezing, the unit must be \u003cstrong\u003ewinterized and the water side drained\u003c\/strong\u003e at the end of swim season.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"hwhp110-faq-card\"\u003e      \u003ch4\u003eHow much will it cost to run?\u003c\/h4\u003e      \u003cp\u003eWith a \u003cstrong\u003e5.7 COP\u003c\/strong\u003e, the W3HP21105T uses roughly \u003cstrong\u003e4-5 kW\u003c\/strong\u003e when running. At an average US electric rate, that is a few dollars per hour of runtime, dramatically less than a gas heater hitting the same temperature target. Pool covers and only heating when you are using the pool will keep monthly costs sane.\u003c\/p\u003e    \u003c\/div\u003e      \u003c\/section\u003e  \u003csection class=\"hwhp110-cta\"\u003e    \u003ch2\u003eOrder the Hayward W3HP21105T From PST\u003c\/h2\u003e    \u003cp\u003ePST Pool Supplies is an authorized Hayward dealer. Every HeatPro ships with the full \u003cstrong\u003e5-year Hayward parts warranty\u003c\/strong\u003e, backed by our in-house service team.\u003c\/p\u003e    \u003cdiv class=\"hwhp110-perks\"\u003e      \u003cspan class=\"hwhp110-perk\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"hwhp110-perk\"\u003e30-Day Returns\u003c\/span\u003e\u003cspan class=\"hwhp110-perk\"\u003e5-Year Hayward Parts Warranty\u003c\/span\u003e\u003cspan class=\"hwhp110-perk\"\u003eAuthorized Hayward Dealer\u003c\/span\u003e    \u003c\/div\u003e  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":44002162802753,"sku":"PST-W3HP21105T","price":5212.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-W3HP21105T.jpg?v=1780385370"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/collections\/1015679.jpg?v=1774030468","url":"https:\/\/www.pstpoolsupplies.com\/collections\/hayward-heaters.oembed","provider":"PST Pool Supplies","version":"1.0","type":"link"}