{"product_id":"pentair-42002-0024s-stack-flue-sensor-replacement-for-sta-rite-max-e-therm-heaters","title":"Pentair 42002-0024S Stack Flue Sensor – Replacement for Sta-Rite Max-E-Therm Heaters","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Pentair 42002-0024S Stack Flue Sensor is a direct replacement part designed for pool and spa heater stacks. When fitted to compatible units, it helps monitor the flue conditions that influence how heat is generated and delivered to the water, supporting consistent operation in outdoor or indoor pool areas.\u003c\/p\u003e\u003ch2\u003eCompatibility and use\u003c\/h2\u003e\u003cp\u003eThis sensor is built to work with Sta-Rite Max-E-Therm pool heaters. It functions as a like-for-like replacement for the original part, allowing you to maintain a stable sensing path without extensive rewiring.\u003c\/p\u003e\u003ch2\u003ePractical benefits you may notice\u003c\/h2\u003e\u003cp\u003eWhile results can vary by installation and system condition, a fresh sensor can contribute to more stable readings and smoother heater cycles. In environments like home pool equipment areas, a well-sealed sensor helps resist humidity and temperature swings that could affect performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement for the Pentair 42002-0024S Stack Flue Sensor\u003c\/li\u003e\n\u003cli\u003eDesigned to fit compatible Sta-Rite Max-E-Therm pool heaters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation notes\u003c\/h2\u003e\u003cp\u003ePrepare for a straightforward swap by powering down the heater and allowing components to cool. Verify the model number matches 42002-0024S and have basic hand tools ready. Follow the heater manual for any seam seals or mounting considerations.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePower off before handling any electrical components\u003c\/li\u003e\n\u003cli\u003eKeep fasteners and sensors organized during replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eMaintenance and care\u003c\/h2\u003e\u003cp\u003eAfter installation, conduct periodic inspections of the sensor area and any wiring harness to detect signs of wear. If readings drift or alarms appear, consult your service guide and consider rechecking the sensor integrity as part of routine maintenance.\u003c\/p\u003e\u003ch2\u003eWhy this component matters\u003c\/h2\u003e\u003cp\u003eThe stack flue sensor contributes to safer, efficient operation by monitoring exhaust-related signals that influence the heater's firing sequence. Replacing a worn sensor can help preserve the intended response of the heating system when conditions permit efficient heat transfer to the water.\u003c\/p\u003e\u003ch2\u003eProduct highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTrusted Pentair part designed for pool and spa heater systems\u003c\/li\u003e\n\u003cli\u003eCompact, durable design suited for the heater environment\u003c\/li\u003e\n\u003cli\u003eClear identification and straightforward verification with model numbers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNote: The information here focuses on compatibility and usage; actual performance depends on overall system condition and installation accuracy. This replacement offers a practical option for maintenance and uptime continuity.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the Pentair 42002-0024S Stack Flue Sensor used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A replacement sensor for pool and spa heater stacks, designed to work with Sta-Rite Max-E-Therm systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this sensor fit my heater model?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check your heater model; the 42002-0024S is intended for Sta-Rite Max-E-Therm configurations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":45738155376826,"sku":"B004VTGELU","price":241.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/pentair-42002-0024s-stack-flue-sensor.jpg?v=1774658599","url":"https:\/\/gardencanada.ca\/products\/pentair-42002-0024s-stack-flue-sensor-replacement-for-sta-rite-max-e-therm-heaters","provider":"Garden Canada","version":"1.0","type":"link"}