Your next buying step
EHEIM thermocontrol e 250 Adjustable Aquarium Heater
Model: thermocontrol e 250 (Type 3638) · US configuration
Your choices from the finder
Review the product, then choose a seller
Compare offers for this model
A 250 W adjustable, fully submersible glass heater for aquariums rated up to about 600 L / 159 US gal, with a 68–90°F control range and freshwater and marine-water support.
Search this model on Amazon ↗Search results may include other models. Confirm the exact model, size and included accessories before ordering.
As an Amazon Associate I earn from qualifying purchases. Buying links on BuyerShortlists may be affiliate links.
Assessment scenario: Compare this exact model
Check the exact model and configuration against your choices, then compare the seller and offer details.
Explore this buying guide ↗Why consider this model?
- Consider the 250 W Type 3638 for an aquarium in EHEIM's approximate 400–600 L range (up to 159 US gallons) when the 68–90°F adjustable control and about 17.4 inches of vertical clearance suit the tank.
Tradeoffs to weigh
- The e 250's longer body and 159-gallon ceiling distinguish it from nearby wattages; neither the wattage nor rated volume predicts performance in a particular room. Its glass is described as impact resistant, not shatterproof; confirm exact voltage, vertical placement, water marks and flow.
Check these before ordering
- Confirm the exact model, generation, size and configuration in the offer.
- Compare your selected requirements with the detailed review before ordering.
- Check included accessories, seller, current availability and return terms.