Thermocontrol e200 Heater, Black, Wattage: 200W, Model Number: AEH3637090

These heaters are big, i originally ordered a 300watt model from a different seller, but when it arrived i found that it was actually too tall for my 240 litre Juwel tank, i had to return it for a refund and ordered this 200watt model instead, the heater arrived promptly and well packaged, I installed it in the tank a few days ago and it's working fine, the thermostat is easy to set with clear setting values (numbers) the temperature setting ring is quite firm to turn which is great as there's no chance of accidentally turning the ring and changing the temperature when doing tank maintenance, once set to the desired temperature the heater maintains this temperature without deviation, (set and forget).

Well built, love the LED indicator. Heated up my 225l effortlessly

Reliable heater

It's an Eheim, so you know you are buying quality. Does exactly what you expect it to.

Good item well made and accurate would by again 5*

as always eheim products quality keeps tank water at temperature it’s set for and does it quickly. its description is 100% correct.

As you would expect with any eheim product you're getting the best quality available on the market, hence the premium price. This heater doesn't fail, far surpassed the previous jager model which could often be tricky regarding the calibration of them. Well that's not the case with this thermocontrol model, no calibration needed, plug and play. Unlike the jager model this model has a green light on when the heater is stable and a red light appears when it's heating, giving you peace of mind around the clock. A very much improved model, highly recommended.

i think its pretty great, ive been recommended this so yeah does its job and easy to use.

Works perfectly in my 15g Flex aquarium.

Works perfectly. Hopefully it lasts like my previous eheim. I've had that for around 8 years and no problems have occurred.

Just got my new aquarium heater. My current 75W Eheim is still working after 3 years but I wanted to get a new one to be on the safe side. Wonderful tank heaters. 🤩

Still going strong after one year. They're easy to adjust, are reasonably accurate (I use external thermometers instead of the built-in thermometer and temperature dial to identify the temperature the water is heated to). No issues with water getting into the heater, no broken heaters, and the cord is slightly longer than most. I use this brand heater with an ink bird monitor.

I bought this to replace a cheaper brand that came as part of a kit. This heater is way way nicer. The temperature has been spot on and is very steady, even with changing indoor air temperatures.