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EHEIM thermocontrol+ e 300 Wi-Fi Aquarium Heater
Model: thermocontrol+ e 300 (Type 3669; product number 3669010) · US configuration
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The 300 W North American Type 3669 is the longest assessed WLAN size, rated for about 600–1,000 L (159–264 US gal) and using the manual-stated 68–90°F setting range.
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Explore this buying guide ↗Why consider this model?
- Type 3669 is EHEIM's largest thermocontrol+ e model in the North American voltage group: 300 W, roughly 600–1,000 L / 159–264 US gal, and a 486 mm (19.13 in) long-axis body. The 264-gallon ceiling is a conservative screen, not a guarantee that the unit is suitable for every 264-gallon room-and-tank heat load.
Tradeoffs to weigh
- This is a physically long glass heater, not a shatterproof or compact option. WLAN programming and alerting require a deliberate setup; EHEIM says the device does not cool water and recommends limited immersion to its water-level mark for best Wi-Fi reception. The English manual says 68–90°F, while product-page text lists 18–32°C; this review uses the conservative manual Fahrenheit endpoints. The official image is labelled 220–240 V and remains rejected. The page instead uses a wattage-matched ReefH2O listing photo tied to UPC 720686011700, but no voltage label is legible there, so check the offered package and unit.
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