{"product_id":"eheim-jager-200w-aquarium-heater-16-inch-aeh3617090","title":"Eheim Jager 200W Aquarium Heater (16-Inch) AEH3617090","description":"\u003ch2\u003eReliable warmth for your aquarium\u003c\/h2\u003e\n\u003cp\u003eThe Eheim AEH3617090 200-watt Jager heater is engineered to maintain steady, safe temperatures in freshwater and tropical tanks. At 16 inches long, it blends into most canopies and tanks without protruding, while delivering consistent heat across the water column.\u003c\/p\u003e\n\u003ch3\u003eCalibrated for accuracy\u003c\/h3\u003e\n\u003cp\u003eOne of the standout features is a built‑in calibration function that helps you dial in the exact temperature. You'll want to validate the heater's setting with a reliable thermometer, and calibrate using the quick method described below.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIn-tank calibration is possible, letting you fine‑tune while the heater runs\u003c\/li\u003e\n  \u003cli\u003eA 5-gallon bucket setup makes quick, controlled adjustments in a smaller volume\u003c\/li\u003e\n  \u003cli\u003eThe red indicator arrow provides a visual cue to match the thermometer reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to calibrate (quick guide)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePlace the heater in a bucket or tank and set the target temperature\u003c\/li\u003e\n  \u003cli\u003eImmerse a dependable thermometer and wait for the water to stabilize\u003c\/li\u003e\n  \u003cli\u003eIf readings differ, rotate the red adjustment arrow until the water matches the set temperature\u003c\/li\u003e\n  \u003cli\u003eReturn the heater to your aquarium and monitor for stability over the next 24–48 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDurability and craftsmanship\u003c\/h3\u003e\n\u003cp\u003eMade with German engineering heritage in mind, the Jager heater emphasizes reliability and long-term performance. It’s built to withstand routine aquarium maintenance and regular water changes, with calibration controls designed to minimize drift over time.\u003c\/p\u003e\n\u003ch3\u003eWhat you’ll notice in use\u003c\/h3\u003e\n\u003cp\u003eImagine a stable, comfortable environment for your fish and plants, with less temperature fluctuation between day and night. The heater’s 200 watts are designed for medium to larger tanks, helping you avoid abrupt temperature swings while you feed, clean, or observe your aquatic life.\u003c\/p\u003e\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eJager heater unit (16 inches, 200 W)\u003c\/li\u003e\n  \u003cli\u003eCalibration instructions and support\u003c\/li\u003e\n  \u003cli\u003eMounting hardware for typical aquarium setups\u003c\/li\u003e\n\u003c\/ul\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 calibration feature on the Eheim Jager AEH3617090?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The heater includes a built‑in calibration function to adjust temperature to match a thermometer reading, reducing deviation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I calibrate the heater before using it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Calibrate in a small bucket (5 gallons recommended) with a thermometer; adjust the red arrow until the water matches the set temperature.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Eheim","offers":[{"title":"Default Title","offer_id":40563614154881,"sku":"B00BTN9R2E","price":95.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/4757\/3633\/files\/eheim-aeh3617090-heater-body-closeup.jpg?v=1765866935","url":"https:\/\/petiva.ca\/products\/eheim-jager-200w-aquarium-heater-16-inch-aeh3617090","provider":"Petiva","version":"1.0","type":"link"}