{"product_id":"raypak-017402-digital-asme-natural-gas-pool-spa-heater-399000-btu","title":"Raypak Digital ASME Gas Heater, 399K BTU","description":"\u003cp\u003eThe Raypak 017402 (B-R406A-EN-X) is a 406,000 BTU natural gas commercial pool and spa heater built specifically for installations that require ASME certification. It's the right call for public pools, condos, apartments, HOA facilities, and any application where local or state code demands pressure vessel compliance. The cupronickel heat exchanger and bronze headers make it the top choice for saltwater pools or environments with aggressive water chemistry.\u003c\/p\u003e\n\n\u003cp class=\"ez-warning\"\u003eRated for elevations 0–2,000 ft. only. A separate high-altitude model is required for installations above 2,000 ft.\u003c\/p\u003e\n\n\u003cp class=\"ez-section-heading\"\u003eKey Features\u003c\/p\u003e\n\n\u003cul class=\"ez-highlight-list\"\u003e\n  \u003cli\u003e406,000 BTU natural gas input — electronic ignition, factory plumbed and test-fired before shipping\u003c\/li\u003e\n  \u003cli\u003eASME certified with bronze headers — meets commercial pressure vessel code for public and multi-unit installations; each heat exchanger individually inspected by a state official\u003c\/li\u003e\n  \u003cli\u003eCupronickel fin tube heat exchanger — resists salt water, low pH, and heavy use where standard copper falls short\u003c\/li\u003e\n  \u003cli\u003eProTek Shield module included — sacrificial protection for the heat exchanger; replaceable to extend heater life\u003c\/li\u003e\n  \u003cli\u003eUnitherm Governor + automatic bypass — prevents condensation and scale buildup; handles flow rates up to 125 GPM without modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp class=\"ez-tip\"\u003eIf your facility runs saltwater sanitation or deals with chemistry swings, the cupronickel exchanger on the 017402 handles the corrosive load that would shorten a standard copper unit's life significantly.\u003c\/p\u003e\n\n\u003cp class=\"ez-warning\"\u003eProfessional installation by a licensed contractor is required to validate the Raypak warranty. Check local codes and permit requirements before purchase — some jurisdictions require additional inspections for ASME-certified equipment.\u003c\/p\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":52501671215417,"sku":"017402","price":5596.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/2320\/4665\/files\/raypak-017402-digital-asme-natural-gas-pool-spa-heater-399000-btu.webp?v=1776794975","url":"https:\/\/www.ezpools.com\/products\/raypak-017402-digital-asme-natural-gas-pool-spa-heater-399000-btu","provider":"EZ Pools","version":"1.0","type":"link"}