{"product_id":"pentair-461058-mastertemp-125-gas-heater-no-cord","title":"Pentair | 461058 | MasterTemp 125 High Performance Pool and Spa Heater – 125,000 BTU, Natural Gas, Without Cord","description":"\u003cp data-start=\"385\" data-end=\"704\"\u003eEnhance your pool or spa with the Pentair 461058 MasterTemp 125 Heater. This 125,000 BTU natural gas heater offers 82% thermal efficiency, a compact design, and is certified for low NOx emissions. Ideal for pools up to 15,000 gallons, it provides quick heating and is suitable for both indoor and outdoor installations.\u003c\/p\u003e\n\u003chr data-start=\"706\" data-end=\"709\"\u003e\n\u003ch3 data-start=\"711\" data-end=\"733\"\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul data-start=\"735\" data-end=\"1606\"\u003e\n\u003cli data-start=\"735\" data-end=\"840\"\u003e\n\u003cp data-start=\"737\" data-end=\"840\"\u003e\u003cstrong data-start=\"737\" data-end=\"764\"\u003eHigh Thermal Efficiency\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eAchieves 82% thermal efficiency, the highest in its class, ensuring energy savings and rapid heating.\u003c\/span\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"842\" data-end=\"947\"\u003e\n\u003cp data-start=\"844\" data-end=\"947\"\u003e\u003cstrong data-start=\"844\" data-end=\"871\"\u003eCompact and Lightweight\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eWeighs only 80 lbs, making it easy to handle and install in various pool setups.\u003c\/span\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca href=\"https:\/\/www.vitafilters.com\/products\/pentair-mastertemp-125-pool-heater?utm_source=chatgpt.com\" rel=\"noopener\" class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[0.5625em] font-medium text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]! transition-colors duration-150 ease-in-out\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between absolute\"\u003e\u003cspan class=\"max-w-full grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cstrong data-start=\"951\" data-end=\"978\"\u003eIdeal for Smaller Pools\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eDesigned for pools up to 15,000 gallons, including aboveground and inground pools.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1058\" data-end=\"1164\"\u003e\n\u003cp data-start=\"1060\" data-end=\"1164\"\u003e\u003cstrong data-start=\"1060\" data-end=\"1084\"\u003eDurable Construction\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eFeatures a corrosion and UV-resistant enclosure, suitable for both indoor and outdoor installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1166\" data-end=\"1281\"\u003e\n\u003cp data-start=\"1168\" data-end=\"1281\"\u003e\u003cstrong data-start=\"1168\" data-end=\"1201\"\u003eUser-Friendly Digital Display\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eEquipped with an easy-to-use digital display\/controller for straightforward operation and monitoring.\u003c\/span\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1283\" data-end=\"1386\"\u003e\n\u003cp data-start=\"1285\" data-end=\"1386\"\u003e\u003cstrong data-start=\"1285\" data-end=\"1306\"\u003eLow NOx Emissions\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eCertified for low nitrogen oxide emissions, meeting environmental standards.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1388\" data-end=\"1502\"\u003e\n\u003cp data-start=\"1390\" data-end=\"1502\"\u003e\u003cstrong data-start=\"1390\" data-end=\"1422\"\u003eFlexible Gas Line Connection\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eCompatible with a 3\/4\" gas line up to 50 feet from the source.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1504\" data-end=\"1606\"\u003e\n\u003cp data-start=\"1506\" data-end=\"1606\"\u003e\u003cstrong data-start=\"1506\" data-end=\"1526\"\u003eNo Cord Included\u003c\/strong\u003e: \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eThis model does not include a power cord; suitable for installations where the power connection is pre-wired.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-33\" data-testid=\"conversation-turn-206\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--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=\"95592593-5157-4cac-9f1a-645fe0f45f12\" 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\" data-turn-start-message=\"true\" tabindex=\"0\"\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\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"319\"\u003e\u003cstrong data-start=\"79\" data-end=\"144\"\u003eQ: What is the Pentair 461058 MasterTemp 125 heater used for?\u003c\/strong\u003e\u003cbr data-start=\"144\" data-end=\"147\"\u003eA: The Pentair 461058 MasterTemp 125 is a 125,000 BTU natural gas pool and spa heater designed for smaller pools, spas, above-ground pools, and compact residential systems.\u003c\/p\u003e\n\u003chr data-start=\"321\" data-end=\"324\"\u003e\n\u003cp data-start=\"326\" data-end=\"492\"\u003e\u003cstrong data-start=\"326\" data-end=\"378\"\u003eQ: Is the Pentair 461058 natural gas or propane?\u003c\/strong\u003e\u003cbr data-start=\"378\" data-end=\"381\"\u003eA: This model is designed for natural gas. Propane versions are available under different Pentair part numbers.\u003c\/p\u003e\n\u003chr data-start=\"494\" data-end=\"497\"\u003e\n\u003cp data-start=\"499\" data-end=\"720\"\u003e\u003cstrong data-start=\"499\" data-end=\"558\"\u003eQ: What does “without cord” mean on the Pentair 461058?\u003c\/strong\u003e\u003cbr data-start=\"558\" data-end=\"561\"\u003eA: “Without cord” means this version does not include a factory power cord and must be wired according to installation requirements and local electrical codes.\u003c\/p\u003e\n\u003chr data-start=\"722\" data-end=\"725\"\u003e\n\u003cp data-start=\"727\" data-end=\"914\"\u003e\u003cstrong data-start=\"727\" data-end=\"780\"\u003eQ: What size pool is the Pentair 461058 best for?\u003c\/strong\u003e\u003cbr data-start=\"780\" data-end=\"783\"\u003eA: This 125K BTU heater is best for pools up to approximately 15,000 gallons, as well as spas and smaller residential pool systems.\u003c\/p\u003e\n\u003chr data-start=\"916\" data-end=\"919\"\u003e\n\u003cp data-start=\"921\" data-end=\"1125\"\u003e\u003cstrong data-start=\"921\" data-end=\"974\"\u003eQ: Is the Pentair 461058 MasterTemp 125 worth it?\u003c\/strong\u003e\u003cbr data-start=\"974\" data-end=\"977\"\u003eA: Yes. It is a strong option for customers who want compact natural gas heating, 82% thermal efficiency, digital controls, and Low NOx performance.\u003c\/p\u003e\n\u003chr data-start=\"1127\" data-end=\"1130\"\u003e\n\u003cp data-start=\"1132\" data-end=\"1296\"\u003e\u003cstrong data-start=\"1132\" data-end=\"1179\"\u003eQ: Is the Pentair 461058 Low NOx certified?\u003c\/strong\u003e\u003cbr data-start=\"1179\" data-end=\"1182\"\u003eA: Yes. This MasterTemp 125 model is certified for Low NOx emissions, making it suitable for many regulated areas.\u003c\/p\u003e\n\u003chr data-start=\"1298\" data-end=\"1301\"\u003e\n\u003cp data-start=\"1303\" data-end=\"1503\"\u003e\u003cstrong data-start=\"1303\" data-end=\"1366\"\u003eQ: Can the Pentair 461058 be installed indoors or outdoors?\u003c\/strong\u003e\u003cbr data-start=\"1366\" data-end=\"1369\"\u003eA: Yes. It is suitable for indoor or outdoor installation when installed according to Pentair requirements and applicable local codes.\u003c\/p\u003e\n\u003chr data-start=\"1505\" data-end=\"1508\"\u003e\n\u003cp data-start=\"1510\" data-end=\"1725\"\u003e\u003cstrong data-start=\"1510\" data-end=\"1575\"\u003eQ: Does the Pentair 461058 require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1575\" data-end=\"1578\"\u003eA: Yes. Professional installation is recommended due to natural gas connections, electrical wiring, plumbing, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1727\" data-end=\"1730\"\u003e\n\u003cp data-start=\"1732\" data-end=\"1966\"\u003e\u003cstrong data-start=\"1732\" data-end=\"1794\"\u003eQ: Can the Pentair 461058 replace my existing pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1794\" data-end=\"1797\"\u003eA: Yes. It can replace many smaller natural gas pool heaters, but compatibility depends on fuel type, plumbing, electrical setup, venting, and installation requirements.\u003c\/p\u003e\n\u003chr data-start=\"1968\" data-end=\"1971\"\u003e\n\u003cp data-start=\"1973\" data-end=\"2171\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1973\" data-end=\"2047\"\u003eQ: When should I choose the Pentair 461058 instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2047\" data-end=\"2050\"\u003eA: Choose this 125K BTU model if you have a smaller pool or spa and want efficient heating without oversizing the system.\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\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp data-start=\"1506\" data-end=\"1606\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":49181647864120,"sku":"461058","price":1800.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/461058_2.png?v=1777922243","url":"https:\/\/appaetechpoolsupply.com\/products\/pentair-461058-mastertemp-125-gas-heater-no-cord","provider":"AppaeTech Pool Supply","version":"1.0","type":"link"}