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EHEIM thermocontrol+ e 250 Wi-Fi Aquarium Heater
Model: thermocontrol+ e 250 (Type 3668; product number 3668010) · US configuration
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The 250 W North American Type 3668 is the 431 mm WLAN-controlled size for EHEIM's approximate 400–600 L (106–159 US gal) band, with a manual-stated 68–90°F setting range.
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Explore this buying guide ↗Why consider this model?
- Type 3668 is the 250 W model in the 400–600 L (106–159 US gal) manufacturer band. At 431 mm (16.97 in), it is physically longer than the 150 and 200 W options; consider it only if both the tank's actual volume and the upright mounting space align with the supplied instructions.
Tradeoffs to weigh
- The extra wattage and 159-gallon ceiling do not predict recovery time or guarantee performance in a cold room. WLAN setup, sensor placement and marked immersion guidance deserve more checking than a simple plug-in heater. EHEIM's product page says 18°C minimum, but the English operating manual's Fahrenheit table says 68°F; matching follows the explicit US-manual range. The glass heater is not documented as shatterproof; the official image carries a 220–240 V marking and remains rejected. The page instead uses a wattage-matched ReefH2O listing photo tied to UPC 720686011694, but no voltage label is legible there, so check the offered package and unit.
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