{"product_id":"raypak-b-r406a-en-c-asme-natural-gas-pool-heater-399k-btu-017374","title":"Raypak B-R406A Digital ASME Natural Gas Heater, 399k BTU | 017374","description":"\u003cp\u003e\u003cstrong\u003eNeed help choosing this Raypak heater?\u003c\/strong\u003e Call \u003ca href=\"tel:7252051783\"\u003e725-205-1783\u003c\/a\u003e or email \u003ca href=\"mailto:sales@poolsupplydepot.net\"\u003esales@poolsupplydepot.net\u003c\/a\u003e with your existing heater model, fuel type, installation ZIP code and equipment-pad photos. We can help confirm the replacement and shipping or freight options. Local pickup is available in Henderson, Nevada; confirm availability before visiting.\u003c\/p\u003e\u003ch2 data-section-id=\"1p927wt\" data-start=\"619\" data-end=\"638\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"640\" data-end=\"1024\"\u003eThe \u003cstrong data-start=\"644\" data-end=\"701\"\u003eRaypak B-R406A Digital ASME Natural Gas Heater 017374\u003c\/strong\u003e is a high-capacity pool and spa heater designed for dependable heating performance, digital operation, and heavy-duty ASME-rated construction. With a \u003cstrong data-start=\"852\" data-end=\"896\"\u003e399,000 BTU natural gas heating capacity\u003c\/strong\u003e, this model is well suited for larger commercial pools, spas, and residential applications where ASME construction is required.\u003c\/p\u003e\n\u003cp data-start=\"1026\" data-end=\"1309\"\u003eThis heater features \u003cstrong data-start=\"1047\" data-end=\"1065\"\u003ebronze headers\u003c\/strong\u003e, providing added durability for demanding pool and spa environments. The included \u003cstrong data-start=\"1148\" data-end=\"1172\"\u003eProTek Shield Module\u003c\/strong\u003e helps protect key heater components from corrosion, supporting longer service life when the heater is properly installed and maintained.\u003c\/p\u003e\n\u003cp data-start=\"1311\" data-end=\"1525\"\u003eWith digital controls, electronic ignition, ASME construction, and Raypak’s service-friendly design, the B-R406A is built for powerful and reliable operation in commercial, public, and code-sensitive installations.\u003c\/p\u003e\n\u003chr data-start=\"1527\" data-end=\"1530\"\u003e\n\u003ch2 data-section-id=\"1vdrhtn\" data-start=\"1532\" data-end=\"1544\"\u003eIdeal For\u003c\/h2\u003e\n\u003cp data-start=\"1546\" data-end=\"1584\"\u003eThe Raypak 017374 heater is ideal for:\u003c\/p\u003e\n\u003cul data-start=\"1586\" data-end=\"1924\"\u003e\n\u003cli data-section-id=\"xdv9cm\" data-start=\"1586\" data-end=\"1613\"\u003eCommercial swimming pools\u003c\/li\u003e\n\u003cli data-section-id=\"ch1esi\" data-start=\"1614\" data-end=\"1649\"\u003eCommercial spas and therapy pools\u003c\/li\u003e\n\u003cli data-section-id=\"vez1qo\" data-start=\"1650\" data-end=\"1700\"\u003eLarge residential pools requiring ASME equipment\u003c\/li\u003e\n\u003cli data-section-id=\"167ydj1\" data-start=\"1701\" data-end=\"1744\"\u003eApartment, HOA, hotel, and facility pools\u003c\/li\u003e\n\u003cli data-section-id=\"zk646b\" data-start=\"1745\" data-end=\"1772\"\u003eNatural gas installations\u003c\/li\u003e\n\u003cli data-section-id=\"baowjv\" data-start=\"1773\" data-end=\"1812\"\u003eApplications requiring bronze headers\u003c\/li\u003e\n\u003cli data-section-id=\"1fjt0w9\" data-start=\"1813\" data-end=\"1858\"\u003eReplacing older Raypak B-R406A ASME heaters\u003c\/li\u003e\n\u003cli data-section-id=\"qgct8t\" data-start=\"1859\" data-end=\"1924\"\u003eInstallations where high BTU output and durability are required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1926\" data-end=\"1929\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1931\" data-end=\"1946\"\u003eKey Features\u003c\/h2\u003e\n\u003ch3 data-section-id=\"36xskd\" data-start=\"1948\" data-end=\"1982\"\u003e399K BTU Heating Performance\u003c\/h3\u003e\n\u003cp data-start=\"1983\" data-end=\"2182\"\u003eThe Raypak B-R406A provides \u003cstrong data-start=\"2011\" data-end=\"2026\"\u003e399,000 BTU\u003c\/strong\u003e of natural gas heating power, making it a strong choice for larger pool and spa systems that require faster heat-up and dependable temperature maintenance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1akylxm\" data-start=\"2184\" data-end=\"2213\"\u003eASME-Rated Construction\u003c\/h3\u003e\n\u003cp data-start=\"2214\" data-end=\"2363\"\u003eBuilt to ASME standards, this heater is designed for commercial, public, and code-sensitive installations where ASME-rated equipment may be required.\u003c\/p\u003e\n\u003ch3 data-section-id=\"az47g7\" data-start=\"2365\" data-end=\"2392\"\u003eNatural Gas Operation\u003c\/h3\u003e\n\u003cp data-start=\"2393\" data-end=\"2510\"\u003eDesigned for use with \u003cstrong data-start=\"2415\" data-end=\"2430\"\u003enatural gas\u003c\/strong\u003e, making it a practical option for properties with existing natural gas service.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5l6e4k\" data-start=\"2512\" data-end=\"2532\"\u003eBronze Headers\u003c\/h3\u003e\n\u003cp data-start=\"2533\" data-end=\"2691\"\u003eBronze headers offer added strength and durability compared with standard polymer headers, making this model suitable for demanding pool and spa environments.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1o7d3bo\" data-start=\"2693\" data-end=\"2719\"\u003eProTek Shield Module\u003c\/h3\u003e\n\u003cp data-start=\"2720\" data-end=\"2832\"\u003eThe included \u003cstrong data-start=\"2733\" data-end=\"2757\"\u003eProTek Shield Module\u003c\/strong\u003e helps protect against corrosion and supports longer heater component life.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ungke\" data-start=\"2834\" data-end=\"2862\"\u003eDigital Control System\u003c\/h3\u003e\n\u003cp data-start=\"2863\" data-end=\"3027\"\u003eThe digital control panel allows users to easily set and monitor pool or spa water temperature. Built-in diagnostics also help simplify troubleshooting and service.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1md5dv5\" data-start=\"3029\" data-end=\"3054\"\u003eElectronic Ignition\u003c\/h3\u003e\n\u003cp data-start=\"3055\" data-end=\"3185\"\u003eElectronic ignition provides reliable startup when there is a call for heat and eliminates the need for a constant standing pilot.\u003c\/p\u003e\n\u003ch3 data-section-id=\"129fiqb\" data-start=\"3187\" data-end=\"3223\"\u003eService-Friendly Raypak Design\u003c\/h3\u003e\n\u003cp data-start=\"3224\" data-end=\"3335\"\u003eRaypak heaters are known for accessible components, practical service layout, and dependable field performance.\u003c\/p\u003e\n\u003chr data-start=\"3337\" data-end=\"3340\"\u003e\n\u003ch2 data-section-id=\"2qq1z5\" data-start=\"3342\" data-end=\"3353\"\u003eBenefits\u003c\/h2\u003e\n\u003cp data-start=\"3355\" data-end=\"3661\"\u003eThe \u003cstrong data-start=\"3359\" data-end=\"3384\"\u003eRaypak 017374 B-R406A\u003c\/strong\u003e gives facility managers, pool professionals, and homeowners a powerful combination of high BTU output, ASME construction, and long-term durability. Its \u003cstrong data-start=\"3537\" data-end=\"3556\"\u003e399K BTU rating\u003c\/strong\u003e makes it a strong fit for larger pool and spa applications where fast and reliable heating is important.\u003c\/p\u003e\n\u003cp data-start=\"3663\" data-end=\"3943\"\u003eThe \u003cstrong data-start=\"3667\" data-end=\"3685\"\u003ebronze headers\u003c\/strong\u003e provide added durability for heavier-use environments, while the \u003cstrong data-start=\"3751\" data-end=\"3775\"\u003eProTek Shield Module\u003c\/strong\u003e helps protect against corrosion. Digital controls make everyday operation simple, and built-in diagnostics help service professionals identify issues more efficiently.\u003c\/p\u003e\n\u003chr data-start=\"3945\" data-end=\"3948\"\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"3950\" data-end=\"3967\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3969\" data-end=\"4700\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3969\" data-end=\"3996\"\u003e\n\u003ctr data-start=\"3969\" data-end=\"3996\"\u003e\n\u003cth data-start=\"3969\" data-end=\"3985\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"3985\" data-end=\"3996\" data-col-size=\"md\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"4007\" data-end=\"4700\"\u003e\n\u003ctr data-start=\"4007\" data-end=\"4025\"\u003e\n\u003ctd data-start=\"4007\" data-end=\"4015\" data-col-size=\"sm\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-start=\"4015\" data-end=\"4025\" data-col-size=\"md\"\u003eRaypak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4026\" data-end=\"4079\"\u003e\n\u003ctd data-start=\"4026\" data-end=\"4041\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-start=\"4041\" data-end=\"4079\" data-col-size=\"md\"\u003eDigital ASME Pool \u0026amp; Spa Gas Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4080\" data-end=\"4099\"\u003e\n\u003ctd data-start=\"4080\" data-end=\"4088\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e\n\u003ctd data-start=\"4088\" data-end=\"4099\" data-col-size=\"md\"\u003eB-R406A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4100\" data-end=\"4124\"\u003e\n\u003ctd data-start=\"4100\" data-end=\"4114\" data-col-size=\"sm\"\u003ePart Number\u003c\/td\u003e\n\u003ctd data-start=\"4114\" data-end=\"4124\" data-col-size=\"md\"\u003e017374\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4125\" data-end=\"4144\"\u003e\n\u003ctd data-start=\"4125\" data-end=\"4131\" data-col-size=\"sm\"\u003eSKU\u003c\/td\u003e\n\u003ctd data-start=\"4131\" data-end=\"4144\" data-col-size=\"md\"\u003eRAY017374\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4145\" data-end=\"4178\"\u003e\n\u003ctd data-start=\"4145\" data-end=\"4161\" data-col-size=\"sm\"\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd data-start=\"4161\" data-end=\"4178\" data-col-size=\"md\"\u003e840891041566\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4179\" data-end=\"4206\"\u003e\n\u003ctd data-start=\"4179\" data-end=\"4191\" data-col-size=\"sm\"\u003eFuel Type\u003c\/td\u003e\n\u003ctd data-start=\"4191\" data-end=\"4206\" data-col-size=\"md\"\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4207\" data-end=\"4235\"\u003e\n\u003ctd data-start=\"4207\" data-end=\"4220\" data-col-size=\"sm\"\u003eBTU Rating\u003c\/td\u003e\n\u003ctd data-start=\"4220\" data-end=\"4235\" data-col-size=\"md\"\u003e399,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4236\" data-end=\"4296\"\u003e\n\u003ctd data-start=\"4236\" data-end=\"4252\" data-col-size=\"sm\"\u003eIgnition Type\u003c\/td\u003e\n\u003ctd data-start=\"4252\" data-end=\"4296\" data-col-size=\"md\"\u003eElectronic \/ Intermittent Spark Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4297\" data-end=\"4331\"\u003e\n\u003ctd data-start=\"4297\" data-end=\"4312\" data-col-size=\"sm\"\u003eControl Type\u003c\/td\u003e\n\u003ctd data-start=\"4312\" data-end=\"4331\" data-col-size=\"md\"\u003eDigital Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4332\" data-end=\"4359\"\u003e\n\u003ctd data-start=\"4332\" data-end=\"4349\" data-col-size=\"sm\"\u003eHeat Exchanger\u003c\/td\u003e\n\u003ctd data-start=\"4349\" data-end=\"4359\" data-col-size=\"md\"\u003eCopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4360\" data-end=\"4388\"\u003e\n\u003ctd data-start=\"4360\" data-end=\"4378\" data-col-size=\"sm\"\u003eHeader Material\u003c\/td\u003e\n\u003ctd data-start=\"4378\" data-end=\"4388\" data-col-size=\"md\"\u003eBronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4389\" data-end=\"4421\"\u003e\n\u003ctd data-start=\"4389\" data-end=\"4413\" data-col-size=\"sm\"\u003eConstruction Standard\u003c\/td\u003e\n\u003ctd data-start=\"4413\" data-end=\"4421\" data-col-size=\"md\"\u003eASME\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4422\" data-end=\"4467\"\u003e\n\u003ctd data-start=\"4422\" data-end=\"4443\" data-col-size=\"sm\"\u003eProtection Feature\u003c\/td\u003e\n\u003ctd data-start=\"4443\" data-end=\"4467\" data-col-size=\"md\"\u003eProTek Shield Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4468\" data-end=\"4498\"\u003e\n\u003ctd data-start=\"4468\" data-end=\"4492\" data-col-size=\"sm\"\u003eWater Connection Size\u003c\/td\u003e\n\u003ctd data-start=\"4492\" data-end=\"4498\" data-col-size=\"md\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4499\" data-end=\"4588\"\u003e\n\u003ctd data-start=\"4499\" data-end=\"4513\" data-col-size=\"sm\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-start=\"4513\" data-end=\"4588\" data-col-size=\"md\"\u003eCommercial and residential pool\/spa systems requiring ASME construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4589\" data-end=\"4673\"\u003e\n\u003ctd data-start=\"4589\" data-end=\"4609\" data-col-size=\"sm\"\u003eInstallation Type\u003c\/td\u003e\n\u003ctd data-start=\"4609\" data-end=\"4673\" data-col-size=\"md\"\u003eOutdoor; indoor only with proper venting and code compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4674\" data-end=\"4700\"\u003e\n\u003ctd data-start=\"4674\" data-end=\"4685\" data-col-size=\"sm\"\u003eGas Type\u003c\/td\u003e\n\u003ctd data-start=\"4685\" data-end=\"4700\" data-col-size=\"md\"\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"4702\" data-end=\"4705\"\u003e\n\u003ch2 data-section-id=\"laqy70\" data-start=\"4707\" data-end=\"4738\"\u003eImportant Installation Notes\u003c\/h2\u003e\n\u003cp data-start=\"4740\" data-end=\"4994\"\u003eThis heater should be installed by a \u003cstrong data-start=\"4777\" data-end=\"4821\"\u003elicensed pool, gas, or HVAC professional\u003c\/strong\u003e. Proper gas line sizing, electrical wiring, water flow, bonding, ventilation, clearances, and local code compliance are required for safe operation and warranty protection.\u003c\/p\u003e\n\u003cp data-start=\"4996\" data-end=\"5189\"\u003eBecause this is an \u003cstrong data-start=\"5015\" data-end=\"5029\"\u003eASME model\u003c\/strong\u003e, it may be required for certain commercial, public, or facility pool applications depending on local code. Always confirm project requirements before ordering.\u003c\/p\u003e\n\u003cp data-start=\"5191\" data-end=\"5332\"\u003eThis model is designed for \u003cstrong data-start=\"5218\" data-end=\"5233\"\u003enatural gas\u003c\/strong\u003e. It should not be used with propane unless the correct factory-approved propane model is selected.\u003c\/p\u003e\n\u003chr data-start=\"5334\" data-end=\"5337\"\u003e\n\u003ch2 data-section-id=\"px9lge\" data-start=\"5339\" data-end=\"5361\"\u003eCustomer-Facing Q\u0026amp;A\u003c\/h2\u003e\n\u003cp data-start=\"5363\" data-end=\"5486\"\u003e\u003cstrong data-start=\"5363\" data-end=\"5408\"\u003eQ: Is this heater natural gas or propane?\u003c\/strong\u003e\u003cbr data-start=\"5408\" data-end=\"5411\"\u003eA: This model, \u003cstrong data-start=\"5426\" data-end=\"5453\"\u003eRaypak 017374 \/ B-R406A\u003c\/strong\u003e, is the \u003cstrong data-start=\"5462\" data-end=\"5477\"\u003enatural gas\u003c\/strong\u003e version.\u003c\/p\u003e\n\u003cp data-start=\"5488\" data-end=\"5569\"\u003e\u003cstrong data-start=\"5488\" data-end=\"5524\"\u003eQ: How many BTUs is this heater?\u003c\/strong\u003e\u003cbr data-start=\"5524\" data-end=\"5527\"\u003eA: This model is rated at \u003cstrong data-start=\"5553\" data-end=\"5568\"\u003e399,000 BTU\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"5571\" data-end=\"5791\"\u003e\u003cstrong data-start=\"5571\" data-end=\"5598\"\u003eQ: What does ASME mean?\u003c\/strong\u003e\u003cbr data-start=\"5598\" data-end=\"5601\"\u003eA: ASME means the heater is built to a recognized pressure vessel construction standard. ASME heaters are often required for commercial, public, or code-sensitive pool and spa installations.\u003c\/p\u003e\n\u003cp data-start=\"5793\" data-end=\"5962\"\u003e\u003cstrong data-start=\"5793\" data-end=\"5838\"\u003eQ: What is the benefit of bronze headers?\u003c\/strong\u003e\u003cbr data-start=\"5838\" data-end=\"5841\"\u003eA: Bronze headers provide added durability and are commonly used in heavier-duty or commercial-style heater applications.\u003c\/p\u003e\n\u003cp data-start=\"5964\" data-end=\"6101\"\u003e\u003cstrong data-start=\"5964\" data-end=\"6010\"\u003eQ: Does this heater include ProTek Shield?\u003c\/strong\u003e\u003cbr data-start=\"6010\" data-end=\"6013\"\u003eA: Yes. This model includes the \u003cstrong data-start=\"6045\" data-end=\"6069\"\u003eProTek Shield Module\u003c\/strong\u003e for added corrosion protection.\u003c\/p\u003e\n\u003cp data-start=\"6103\" data-end=\"6260\"\u003e\u003cstrong data-start=\"6103\" data-end=\"6140\"\u003eQ: Does it have digital controls?\u003c\/strong\u003e\u003cbr data-start=\"6140\" data-end=\"6143\"\u003eA: Yes. The heater includes a digital control system for temperature adjustment, monitoring, and service diagnostics.\u003c\/p\u003e\n\u003cp data-start=\"6262\" data-end=\"6489\"\u003e\u003cstrong data-start=\"6262\" data-end=\"6314\"\u003eQ: Is this heater suitable for commercial pools?\u003c\/strong\u003e\u003cbr data-start=\"6314\" data-end=\"6317\"\u003eA: Yes. This ASME model is designed for commercial and code-sensitive pool and spa applications, but local code requirements should always be confirmed before installation.\u003c\/p\u003e\n\u003cp data-start=\"6491\" data-end=\"6701\"\u003e\u003cstrong data-start=\"6491\" data-end=\"6549\"\u003eQ: Does this heater require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"6549\" data-end=\"6552\"\u003eA: Yes. Gas pool heaters must be installed by a qualified professional to ensure proper gas, electrical, venting, water flow, and bonding compliance.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/s3.amazonaws.com\/AWSProd\/sites\/raypakcom\/documents\/6000.75.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSell sheet: Digital heater brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/s3.amazonaws.com\/AWSProd\/sites\/raypakcom\/documents\/241236.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: Installation and operation manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":52762878083382,"sku":"RAY017374 -H","price":5252.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/raypak-b-r406a-digital-asme-natural-gas-heater-399k-btu-017374.webp?v=1792647993","url":"https:\/\/poolsupplydepot.net\/products\/raypak-b-r406a-en-c-asme-natural-gas-pool-heater-399k-btu-017374","provider":"Pool Supply Depot","version":"1.0","type":"link"}