{"product_id":"raypak-018051-model-r404a-avia-pool-spa-heater-propane-399-mbtuh-120-240v","title":"Raypak | 018051 | Model R404A Avia Pool \u0026 Spa Heater | Elevation 0-4500 | Propane 399 MBTUH 120\/240V","description":"\u003cp data-start=\"103\" data-end=\"782\"\u003eThe Raypak 018051 Avia Pool \u0026amp; Spa Heater is a high-performance propane heater engineered for fast heat-up, long-term durability, and modern connectivity. Rated at 399,000 BTU input, the Avia is designed for demanding residential and light commercial pool and spa applications where performance, efficiency, and serviceability are critical. Built with Raypak’s patented straight-tube heat exchanger and robust stainless steel combustion components, the Avia delivers consistent heating while simplifying maintenance. Dual-voltage 120\/240V operation and integrated smart controls make this heater a future-ready solution for today’s automated pool environments.\u003c\/p\u003e\n\u003chr data-start=\"784\" data-end=\"787\"\u003e\n\u003cp data-start=\"789\" data-end=\"1890\"\u003e\u003cstrong data-start=\"789\" data-end=\"805\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"805\" data-end=\"808\"\u003e• 399,000 BTU propane-fired heater delivers rapid heat-up for pools and spas requiring high output performance\u003cbr data-start=\"918\" data-end=\"921\"\u003e• Patented straight-tube heat exchanger design eliminates coils and bends for longer life and easier annual maintenance\u003cbr data-start=\"1040\" data-end=\"1043\"\u003e• NiTek heat exchanger construction provides significantly higher erosion resistance compared to copper or cupronickel options\u003cbr data-start=\"1169\" data-end=\"1172\"\u003e• 84 percent thermal efficiency meets modern Low NOx and energy efficiency requirements\u003cbr data-start=\"1259\" data-end=\"1262\"\u003e• Dual-voltage 120\/240V power compatibility simplifies electrical installation across a wide range of setups\u003cbr data-start=\"1370\" data-end=\"1373\" data-is-only-node=\"\"\u003e• Drop-in replacement design aligns water and gas connections with many existing heaters to reduce installation time\u003cbr data-start=\"1489\" data-end=\"1492\"\u003e• Fully serviceable top-access design allows quick access to key internal components\u003cbr data-start=\"1576\" data-end=\"1579\"\u003e• Integrated Wi-Fi connectivity enables remote monitoring, diagnostics, and control through Raypak’s mobile interface\u003cbr data-start=\"1696\" data-end=\"1699\"\u003e• Designed for propane operation with professional-grade combustion and safety controls\u003cbr data-start=\"1786\" data-end=\"1789\"\u003e• Built and supported in the U.S.A. with a 3-year full heater warranty for residential applications\u003c\/p\u003e\n\u003chr data-start=\"1892\" data-end=\"1895\"\u003e\n\u003cp data-start=\"1897\" data-end=\"2382\"\u003e\u003cstrong data-start=\"1897\" data-end=\"1917\"\u003eProduct Overview\u003c\/strong\u003e\u003cbr data-start=\"1917\" data-end=\"1920\"\u003eThe Raypak Avia 399 MBTUH Propane Pool \u0026amp; Spa Heater sets a new standard for durability, efficiency, and smart integration in pool heating equipment. Its straight-tube heat exchanger design reduces internal stress points, improves longevity, and allows for easier preventative maintenance compared to traditional coil-based heaters. Combined with a stainless steel combustion chamber, the Avia is built to withstand harsh pool environments and high-duty cycles.\u003c\/p\u003e\n\u003cp data-start=\"2384\" data-end=\"2927\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eEngineered for modern pool systems, the Avia includes built-in Wi-Fi connectivity for remote diagnostics and monitoring, giving homeowners and service professionals greater insight into heater performance. The heater’s compact footprint, drop-in plumbing alignment, and dual-voltage capability make it ideal for both new installations and equipment replacements. For pool owners seeking a powerful, efficient, and intelligently designed propane heater, the Raypak 018051 Avia delivers professional-grade performance with long-term reliability.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003chr data-start=\"271\" data-end=\"274\"\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"0\" data-end=\"35\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-start=\"37\" data-end=\"269\"\u003e\u003cstrong data-start=\"37\" data-end=\"97\"\u003eQ: What is the Raypak 018051 R404A Avia heater used for?\u003c\/strong\u003e\u003cbr data-start=\"97\" data-end=\"100\"\u003eA: The Raypak 018051 R404A Avia is a 399,000 BTU propane pool and spa heater designed for fast heating and high-performance residential or light commercial applications.\u003c\/p\u003e\n\u003chr data-start=\"271\" data-end=\"274\"\u003e\n\u003cp data-start=\"276\" data-end=\"482\"\u003e\u003cstrong data-start=\"276\" data-end=\"334\"\u003eQ: Is the Raypak 018051 Avia heater Low NOx compliant?\u003c\/strong\u003e\u003cbr data-start=\"334\" data-end=\"337\"\u003eA: Yes. The Avia series is Low NOx compliant and designed to meet emissions regulations in areas such as California and other controlled regions.\u003c\/p\u003e\n\u003chr data-start=\"484\" data-end=\"487\"\u003e\n\u003cp data-start=\"489\" data-end=\"690\"\u003e\u003cstrong data-start=\"489\" data-end=\"545\"\u003eQ: What size pool is the Raypak R404A Avia best for?\u003c\/strong\u003e\u003cbr data-start=\"545\" data-end=\"548\"\u003eA: This 399,000 BTU heater is ideal for medium to large pools, pool and spa combinations, or users who want the fastest possible heat-up time.\u003c\/p\u003e\n\u003chr data-start=\"692\" data-end=\"695\"\u003e\n\u003cp data-start=\"697\" data-end=\"896\"\u003e\u003cstrong data-start=\"697\" data-end=\"740\"\u003eQ: Is the Raypak 018051 R404A worth it?\u003c\/strong\u003e\u003cbr data-start=\"740\" data-end=\"743\"\u003eA: Yes. It is a premium heater offering high output, advanced durability, smart Wi-Fi connectivity, and long-term reliability for demanding pool systems.\u003c\/p\u003e\n\u003chr data-start=\"898\" data-end=\"901\"\u003e\n\u003cp data-start=\"903\" data-end=\"1065\"\u003e\u003cstrong data-start=\"903\" data-end=\"948\"\u003eQ: Is this heater propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"948\" data-end=\"951\"\u003eA: This model is designed for propane (LP) gas. A natural gas version is available under a different model number.\u003c\/p\u003e\n\u003chr data-start=\"1067\" data-end=\"1070\"\u003e\n\u003cp data-start=\"1072\" data-end=\"1289\"\u003e\u003cstrong data-start=\"1072\" data-end=\"1138\"\u003eQ: Can the Raypak 018051 Avia replace my existing pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1138\" data-end=\"1141\"\u003eA: Yes. The Avia is designed as a drop-in replacement, with aligned water and gas connections that simplify installation on existing equipment pads.\u003c\/p\u003e\n\u003chr data-start=\"1291\" data-end=\"1294\"\u003e\n\u003cp data-start=\"1296\" data-end=\"1505\"\u003e\u003cstrong data-start=\"1296\" data-end=\"1353\"\u003eQ: Is the Raypak 018051 suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1353\" data-end=\"1356\"\u003eA: Yes. The NiTek heat exchanger and corrosion-resistant materials provide enhanced durability in saltwater and chemically treated pool environments.\u003c\/p\u003e\n\u003chr data-start=\"1507\" data-end=\"1510\"\u003e\n\u003cp data-start=\"1512\" data-end=\"1725\"\u003e\u003cstrong data-start=\"1512\" data-end=\"1576\"\u003eQ: Does the Raypak 018051 require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1576\" data-end=\"1579\"\u003eA: Yes. Professional installation is recommended due to propane gas connections, electrical setup, plumbing integration, and venting requirements.\u003c\/p\u003e\n\u003chr data-start=\"1727\" data-end=\"1730\"\u003e\n\u003cp data-start=\"1732\" data-end=\"1898\"\u003e\u003cstrong data-start=\"1732\" data-end=\"1795\"\u003eQ: What voltage does the Raypak 018051 Avia heater require?\u003c\/strong\u003e\u003cbr data-start=\"1795\" data-end=\"1798\"\u003eA: This heater operates on 120V or 240V single-phase power, providing flexible installation options.\u003c\/p\u003e\n\u003chr data-start=\"1900\" data-end=\"1903\"\u003e\n\u003cp data-start=\"1905\" data-end=\"2122\"\u003e\u003cstrong data-start=\"1905\" data-end=\"1970\"\u003eQ: Can I control the Raypak 018051 Avia heater from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1970\" data-end=\"1973\"\u003eA: Yes. The Avia series includes built-in Wi-Fi connectivity, allowing remote monitoring, diagnostics, and control through Raypak’s mobile interface.\u003c\/p\u003e\n\u003chr data-start=\"2124\" data-end=\"2127\"\u003e\n\u003cp data-start=\"2129\" data-end=\"2369\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2129\" data-end=\"2189\"\u003eQ: Why choose the Avia series over older Raypak heaters?\u003c\/strong\u003e\u003cbr data-start=\"2189\" data-end=\"2192\"\u003eA: The Avia offers improved efficiency, easier service access, drop-in installation design, smart connectivity, and a more durable heat exchanger compared to traditional models.\u003c\/p\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":44123069448235,"sku":"018051","price":4780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/1589\/7131\/files\/RAY018051_1.png?v=1779703474","url":"https:\/\/auremontdirect.com\/products\/raypak-018051-model-r404a-avia-pool-spa-heater-propane-399-mbtuh-120-240v","provider":"Auremont Direct","version":"1.0","type":"link"}