{"product_id":"raypakpr266aenc51digitalnaturalgasheater266kbtuelectronicignitionpolymerheaderscopperexchanger220lbs009221ray009221","title":"Raypak P-R266A-EN-C #51 Digital Natural Gas Heater, 266K BTU, Electronic Ignition, Polymer Headers, Copper Exchanger, 220 lbs | 009221","description":"\u003cdiv\u003e\n  \u003ch2\u003eRaypak 009221 P-R266A-EN-C #51 Digital Natural Gas Heater 266K BTU\u003c\/h2\u003e\n\n  \u003cp\u003eThe Raypak 009221 P-R266A-EN-C #51 Digital Natural Gas Pool and Spa Heater is a 266A-series residential heater designed for natural gas applications at 2,000 to 6,000 ft elevation. This model features digital electronic ignition, polymer headers, and a copper heat exchanger for dependable pool and spa heating when installed, sized, and maintained correctly.\u003c\/p\u003e\n\n  \u003cp\u003eThis heater is commonly used on residential in-ground pools and spas where a 266A natural gas heater with digital controls, standard copper tubing, and high-altitude #51 configuration is required. Always confirm gas type, altitude, local code requirements, pool size, plumbing, venting, and heater sizing before ordering.\u003c\/p\u003e\n\n  \u003ch3\u003eProduct Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eGenuine Raypak Digital pool and spa heater\u003c\/li\u003e\n    \u003cli\u003eManufacturer part number: 009221\u003c\/li\u003e\n    \u003cli\u003eModel: P-R266A-EN-C #51\u003c\/li\u003e\n    \u003cli\u003e266A digital natural gas heater\u003c\/li\u003e\n    \u003cli\u003e266K BTU class heater\u003c\/li\u003e\n    \u003cli\u003e#51 high-altitude configuration for 2,000 to 6,000 ft elevation where specified\u003c\/li\u003e\n    \u003cli\u003eElectronic ignition for reliable startup\u003c\/li\u003e\n    \u003cli\u003eDigital control with LCD temperature display and diagnostic information\u003c\/li\u003e\n    \u003cli\u003ePolymer headers for corrosion-resistant water connections\u003c\/li\u003e\n    \u003cli\u003eCopper fin-tube heat exchanger for standard pool and spa applications\u003c\/li\u003e\n    \u003cli\u003eDesigned for 120\/240VAC single-phase electrical service where specified\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eProduct Details\u003c\/h3\u003e\n  \u003ctable\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eRaypak\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e009221\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eP-R266A-EN-C #51\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eDigital Gas Pool and Spa Heater\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eFuel Type\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eNatural Gas\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eHeater Size\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e266A \/ 266K BTU class\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eElevation Range\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e2,000 to 6,000 ft where specified\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eIgnition Type\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eElectronic Ignition\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eHeader Type\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003ePolymer Headers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eHeat Exchanger\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eCopper Tubing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eControl Type\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eDigital Control\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e120\/240VAC where specified\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eResidential pool and spa heating\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eResidential pool and spa systems requiring a Raypak P-R266A-EN-C #51 natural gas heater\u003c\/li\u003e\n    \u003cli\u003eInstallations located at 2,000 to 6,000 ft elevation where this model is specified\u003c\/li\u003e\n    \u003cli\u003eOutdoor pool equipment installations where this model is approved by local code\u003c\/li\u003e\n    \u003cli\u003eSystems requiring a 266A Digital Raypak heater with polymer headers and copper tubing\u003c\/li\u003e\n    \u003cli\u003eApplications where the gas supply, electrical supply, water flow, plumbing, venting, and clearances meet Raypak installation requirements\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Uses\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHeating residential swimming pools\u003c\/li\u003e\n    \u003cli\u003eHeating attached spas when properly plumbed and controlled\u003c\/li\u003e\n    \u003cli\u003eReplacing a compatible Raypak 266A natural gas high-altitude heater\u003c\/li\u003e\n    \u003cli\u003eNew equipment pad installations where a 266A natural gas heater is properly sized\u003c\/li\u003e\n    \u003cli\u003eDigital heater upgrades from compatible older Raypak natural gas pool heaters\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eImportant Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eThis item is the heater only.\u003c\/li\u003e\n    \u003cli\u003eGas line, electrical wiring, bonding, venting, unions, plumbing fittings, automation wiring, check valves, bypass plumbing, pressure relief valve where required, and installation materials are sold separately unless otherwise stated.\u003c\/li\u003e\n    \u003cli\u003eVerify natural gas availability, gas line sizing, and elevation range before ordering.\u003c\/li\u003e\n    \u003cli\u003eThis model is not a propane heater. Do not attempt to use propane unless the exact propane model is ordered.\u003c\/li\u003e\n    \u003cli\u003eThis is the #51 elevation configuration and is not the same as #50 0-2,000 ft or #52 6,000-9,000 ft models.\u003c\/li\u003e\n    \u003cli\u003eThis is a copper heat exchanger model and is not the same as cupro-nickel, ASME, Low NOx, commercial, or propane versions.\u003c\/li\u003e\n    \u003cli\u003eSome jurisdictions require Low NOx heaters or have restrictions on standard atmospheric gas heaters. Confirm local requirements before purchase or installation.\u003c\/li\u003e\n    \u003cli\u003eImproper water chemistry, low flow, scale, corrosive water, freeze damage, or improper bypass settings can damage the heater and heat exchanger.\u003c\/li\u003e\n    \u003cli\u003eGas heater installation and service should be performed by a qualified pool heater professional according to Raypak instructions and local code.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eConfirm the model, fuel type, altitude range, BTU size, and local code requirements before installation.\u003c\/li\u003e\n    \u003cli\u003eInstall the heater on a level, non-combustible equipment pad with proper service access and clearances.\u003c\/li\u003e\n    \u003cli\u003eSize the gas line according to the heater demand, gas type, run length, and local code.\u003c\/li\u003e\n    \u003cli\u003eConfirm proper water flow through the heater before firing.\u003c\/li\u003e\n    \u003cli\u003eUse proper plumbing practices and install any required check valves to protect the heater from chemical backflow.\u003c\/li\u003e\n    \u003cli\u003eBond and wire the heater according to the installation manual and applicable electrical code.\u003c\/li\u003e\n    \u003cli\u003eVerify inlet\/outlet plumbing orientation before startup.\u003c\/li\u003e\n    \u003cli\u003eCheck for gas leaks, water leaks, proper ignition, and correct temperature operation during startup.\u003c\/li\u003e\n    \u003cli\u003eRegister the heater and keep installation records, serial number, and startup documentation for warranty and service reference.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypakpr266aenc51digitalnaturalgasheater266kbtuelectronicignitionpolymerheaderscopperexchanger220lbs009221ray009221\"\u003eRaypak 009221 P-R266A-EN-C #51 Digital Natural Gas Heater\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypakpr266aenc50digitalnaturalgasheater266kbtuelectronicignitionpolymerheaderscopperexchanger220lbs009217ray009217\"\u003eRaypak 009217 P-R266A-EN-C #50 Digital Natural Gas Heater\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypakpr206aenc50digitalnaturalgasheater1995kbtuelectronicignitionpolymerheaderscopperexchanger200lbs009216ray009216\"\u003eRaypak 009216 P-R206A-EN-C #50 Digital Natural Gas Heater\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypakpr336aenc50digitalnaturalgasheater3325kbtuelectronicignitionpolymerheaderscopperexchanger240lbs009218ray009218\"\u003eRaypak 009218 P-R336A-EN-C #50 Digital Natural Gas Heater\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypakpr406aenc50digitalnaturalgasheater399kbtuelectronicignitionpolymerheaderscopperexchanger260lbs009219ray009219\"\u003eRaypak 009219 P-R406A-EN-C #50 Digital Natural Gas Heater\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypakpr406aenc51digitalnaturalgasheater399kbtuelectronicignitionpolymerheaderscopperexchanger260lbs009223ray009223\"\u003eRaypak 009223 P-R406A-EN-C #51 Digital Natural Gas Heater\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypak2cpvcconnectornutkit006723fray006723f\"\u003eRaypak 006723F 2\" CPVC Connector \u0026amp; Nut Kit\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypak175psipressureswitchray006737fray006737f\"\u003eRaypak 006737F 1.75 PSI Pressure Switch\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypak120240v24vtransformer006736fray006736f\"\u003eRaypak 006736F 120\/240V to 24V Transformer\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypak207a407apoolheaterburnerkit017045fray017045f\"\u003eRaypak 017045F 207A-407A Pool Heater Burner Kit\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypakpoolheaterdrainplugkit006721fray006721f\"\u003eRaypak 006721F Pool Heater Drain Plug Kit\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/raypak266a267ad10residentialpoolheaterindoordrafthoodstacktop716lbs009839ray009839\"\u003eRaypak 009839 266A\/267A Indoor Drafthood Stack Top, 7\"\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eMaintain proper pool water chemistry to help protect the copper heat exchanger.\u003c\/li\u003e\n    \u003cli\u003eKeep pH, alkalinity, calcium hardness, and sanitizer within recommended ranges.\u003c\/li\u003e\n    \u003cli\u003eClean the pool filter regularly to maintain proper heater flow.\u003c\/li\u003e\n    \u003cli\u003eInspect the heater area for leaves, debris, rodents, insects, and restricted airflow.\u003c\/li\u003e\n    \u003cli\u003eCheck the equipment pad for water leaks, gas odor, rust, or signs of overheating.\u003c\/li\u003e\n    \u003cli\u003eWinterize the heater properly in freeze-prone conditions.\u003c\/li\u003e\n    \u003cli\u003eHave ignition, gas pressure, flame quality, venting, safety controls, and heat exchanger condition checked by a qualified heater technician during routine service.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":52335981330748,"sku":"9221","price":3374.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/RAY009221_0_5efcc5a7-376b-408c-9570-dc533f9def7d.jpg?v=1761241231","url":"https:\/\/aquapoolsupply.com\/products\/raypakpr266aenc51digitalnaturalgasheater266kbtuelectronicignitionpolymerheaderscopperexchanger220lbs009221ray009221","provider":"Aqua Pool Supply","version":"1.0","type":"link"}