{"product_id":"raypak-heater-et3-elec-titanium-240v-unit-type-els-r-0011-1-tib-11kw-new-version-100-10000663","title":"Raypak | 100-10000663 | ET3 Electric Titanium Heater | 11 kW 240V Unit","description":"\u003cp data-start=\"96\" data-end=\"619\"\u003eThe Raypak 100-10000663 ET3 Electric Titanium Heater is a 240V, 11 kW electric heater designed for hydronic heat applications in pools and spas. Featuring a corrosion-resistant titanium heat exchanger, this unit provides reliable thermal transfer and long service life in chemically treated water environments. Engineered for straightforward integration into electric heated pool and spa systems, it supports consistent temperature maintenance and efficient operation with appropriate electrical supply and flow conditions.\u003c\/p\u003e\n\u003cp data-start=\"621\" data-end=\"661\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"663\" data-end=\"675\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"677\" data-end=\"1158\"\u003e• 11 kW electric heater designed for 240V single-phase pool and spa heating.\u003cbr data-start=\"753\" data-end=\"756\"\u003e• Corrosion-resistant titanium heat exchanger for long-term durability in treated water.\u003cbr data-start=\"844\" data-end=\"847\"\u003e• ET3 series design engineered for consistent thermal performance.\u003cbr data-start=\"913\" data-end=\"916\"\u003e• Compatible with standard 240V electrical connections and safety controls.\u003cbr data-start=\"991\" data-end=\"994\"\u003e• Suitable for residential and light commercial pool or spa installations.\u003cbr data-start=\"1068\" data-end=\"1071\"\u003e• Ideal replacement or upgrade for systems requiring electric heat at this kW rating.\u003c\/p\u003e\n\u003cp data-start=\"1160\" data-end=\"1200\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1202\" data-end=\"1218\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1220\" data-end=\"1736\"\u003eThe Raypak 100-10000663 ET3 Electric Titanium Heater is a compact, high-efficiency heating unit engineered to elevate and maintain water temperature in pools and spas. Operating on a 240V electrical supply, the 11 kW heater utilizes a titanium heat exchanger that resists corrosion from sanitizers and balancing chemicals commonly found in aquatic systems. This material choice enhances reliability and extends service life compared to conventional metal heat exchangers, particularly in aggressive water conditions.\u003c\/p\u003e\n\u003cp data-start=\"1738\" data-end=\"2364\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eDesigned for electric heat applications where gas or alternative energy sources are not available or desired, the ET3 series electric heater integrates with appropriate flow switches, safety thermostats, and dedicated electrical circuits to ensure safe and efficient operation. It is suitable for residential installations and light commercial settings where space heating demands align with the 11 kW output. Proper installation by a qualified technician, along with adherence to local electrical codes and manufacturer specifications, ensures dependable performance and optimized comfort in heated pool and spa environments.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003chr data-start=\"280\" data-end=\"283\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"73ed50f9-2680-418e-8525-7a34817a986f\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"0\" data-end=\"35\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"37\" data-end=\"278\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"37\" data-end=\"278\"\u003e\u003cstrong data-start=\"37\" data-end=\"114\"\u003eQ: What is the Raypak 100-10000663 ET3 Electric Titanium Heater used for?\u003c\/strong\u003e\u003cbr data-start=\"114\" data-end=\"117\"\u003eA: The Raypak 100-10000663 ET3 is an 11 kW electric heater designed to heat and maintain water temperature in pools and spas where electric heating is preferred.\u003c\/p\u003e\n\u003chr data-start=\"280\" data-end=\"283\"\u003e\n\u003cp data-start=\"285\" data-end=\"542\"\u003e\u003cstrong data-start=\"285\" data-end=\"348\"\u003eQ: Is the Raypak ET3 11 kW heater good for a pool or a spa?\u003c\/strong\u003e\u003cbr data-start=\"348\" data-end=\"351\"\u003eA: Yes. This heater can be used for pools and spas, but the 11 kW output is best suited for smaller bodies of water, spas, or temperature maintenance rather than rapid heating of large pools.\u003c\/p\u003e\n\u003chr data-start=\"544\" data-end=\"547\"\u003e\n\u003cp data-start=\"549\" data-end=\"719\"\u003e\u003cstrong data-start=\"549\" data-end=\"606\"\u003eQ: What voltage does the Raypak 100-10000663 require?\u003c\/strong\u003e\u003cbr data-start=\"606\" data-end=\"609\"\u003eA: This model requires a 240V electrical supply and should be installed on a properly sized dedicated circuit.\u003c\/p\u003e\n\u003chr data-start=\"721\" data-end=\"724\"\u003e\n\u003cp data-start=\"726\" data-end=\"958\"\u003e\u003cstrong data-start=\"726\" data-end=\"773\"\u003eQ: Is the Raypak ET3 11 kW heater worth it?\u003c\/strong\u003e\u003cbr data-start=\"773\" data-end=\"776\"\u003eA: Yes. It is a good option for customers who want electric heating, corrosion-resistant titanium construction, and reliable temperature control without using natural gas or propane.\u003c\/p\u003e\n\u003chr data-start=\"960\" data-end=\"963\"\u003e\n\u003cp data-start=\"965\" data-end=\"1169\"\u003e\u003cstrong data-start=\"965\" data-end=\"1016\"\u003eQ: Is this heater suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1016\" data-end=\"1019\"\u003eA: Yes. The titanium heat exchanger provides strong corrosion resistance, making it suitable for saltwater and chemically treated pool or spa systems.\u003c\/p\u003e\n\u003chr data-start=\"1171\" data-end=\"1174\"\u003e\n\u003cp data-start=\"1176\" data-end=\"1440\"\u003e\u003cstrong data-start=\"1176\" data-end=\"1252\"\u003eQ: Can the Raypak 100-10000663 replace my existing electric pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1252\" data-end=\"1255\"\u003eA: Yes. It may replace an existing electric heater with a similar kW rating, voltage, plumbing setup, and electrical requirements. Compatibility should be confirmed before installation.\u003c\/p\u003e\n\u003chr data-start=\"1442\" data-end=\"1445\"\u003e\n\u003cp data-start=\"1447\" data-end=\"1692\"\u003e\u003cstrong data-start=\"1447\" data-end=\"1524\"\u003eQ: Does the Raypak ET3 electric heater require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1524\" data-end=\"1527\"\u003eA: Yes. Professional installation is strongly recommended because this heater requires proper electrical wiring, grounding, bonding, water flow, and safety controls.\u003c\/p\u003e\n\u003chr data-start=\"1694\" data-end=\"1697\"\u003e\n\u003cp data-start=\"1699\" data-end=\"2006\"\u003e\u003cstrong data-start=\"1699\" data-end=\"1765\"\u003eQ: How fast will an 11 kW electric heater heat my pool or spa?\u003c\/strong\u003e\u003cbr data-start=\"1765\" data-end=\"1768\"\u003eA: Heating speed depends on water volume, starting temperature, outdoor conditions, insulation, and flow rate. An 11 kW heater is typically better for spas, small pools, or maintaining temperature rather than quickly heating a large pool.\u003c\/p\u003e\n\u003chr data-start=\"2008\" data-end=\"2011\"\u003e\n\u003cp data-start=\"2013\" data-end=\"2349\"\u003e\u003cstrong data-start=\"2013\" data-end=\"2072\"\u003eQ: Is an electric pool heater better than a gas heater?\u003c\/strong\u003e\u003cbr data-start=\"2072\" data-end=\"2075\"\u003eA: An electric heater can be a good choice where gas is not available or where quiet, compact electric heating is preferred. Gas heaters usually heat faster for larger pools, while electric heaters are often better for smaller applications or steady temperature maintenance.\u003c\/p\u003e\n\u003chr data-start=\"2351\" data-end=\"2354\"\u003e\n\u003cp data-start=\"2356\" data-end=\"2650\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2356\" data-end=\"2423\"\u003eQ: Can the Raypak 100-10000663 ET3 be used indoors or outdoors?\u003c\/strong\u003e\u003cbr data-start=\"2423\" data-end=\"2426\"\u003eA: Installation depends on the approved application, local electrical codes, and manufacturer specifications. A qualified installer should confirm the proper location, wiring, and protection requirements before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":51807444664632,"sku":"100-10000663","price":1154.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Screenshot2026-02-18214307.png?v=1777767869","url":"https:\/\/appaetechpoolsupply.com\/products\/raypak-heater-et3-elec-titanium-240v-unit-type-els-r-0011-1-tib-11kw-new-version-100-10000663","provider":"AppaeTech Pool Supply","version":"1.0","type":"link"}