HG-043-800W

I waited a while before writing this review, as I wanted to make sure that it was long lasting and durable. I love the ease of set up, operation, and the constant display of the current temperature. We will see how durable it is this winter. It is such a great price, I will get another one to take some of the strain of this one this winter.

I purchased this heater in November and it failed in April. However, with very little hassle The sent me a brand new one in a few days. Aslong as that first one was a dud and this one lasts ill be happy. Heats well. Easy to use. Until failure kept the pond perfect.

This is a great heater. Use it in a pond outside keeps it at right temperature for fish to thrive in it. Easy to set up.

This heater literally backed 25-30 of my Cichlids!!!!!! Before leaving for work it's a routine for me to check the tank and feed my fish. when I return home from work approximately 6 hrs later, I walk passed the tank and noticed within 5 minutes of returning home something was wrong. Some of the fish were clearly struggling and the rest were near the bottom. I could feel the heat coming from the water of the tank. I check the heater. the digital readout out indicated 80 degrees. I checked the thermostats and they read 99 degrees. the water was fine in the morning 6 hrs earlier but when I got home. It's clear what the root cause was the heater. Why is another question I have.......I would not recommend this product unless you like to gamble. I truly enjoyed the fish I had their were really beautiful. fish.

It works like any aquarium heater but is way more powerful as it is a 1kW heater (for an outdoor pond). What I like is the readout that says the temperature, easy 1 button setup, readout shows wattage, auto-shutoff if taken out of the water, and the heater adjusts output based on surrounding temp. Cons - the casing for readout is flimsy, not sure how long it will last before I start getting error readings and have a useless heater, wish it was bigger (had more surface area). UPDATE: after a few months of use I have encountered some issues. The casing enwraps the tubes too much so that heats build up quickly inside and the device reached set temp quickly. It then shuts off. Also as the device gets close to the desired temp it reduces the wattage output. All this would be great in an enclosed, housed inside, aquarium but does not bode well for a pond that has a large surface area. They need to keep the thermostat away from the heating tubes so the device has a better idea of the surrounding water temp. There is another hygger that has a more open casing and that one allows for more water to heating tube exposure. The temp controller had to be placed in another casing to prevent moisture/water damage.

Works just as advertised. Very easy to use.

This is an amazing heater, super easy to use and very accurate with its digital screen. This product unfortunately did stop working for me after a year of use. I did reach out to Hygger and after a couple of back-and-forth emails Hygger did send me a replacement. The customer support was amazing and they stand behind their product. I will continue to buy other Hygger heaters as I set up new aquariums.Thank you Hygger team

This aquarium heater does a great job keeping my 80 gallon tank, set at a control degree and maintains the degree exactly at desired temperature. The digital display of the current temperature in desired temperature is easily read. However, the only negative would have to be the display window does not black out as in sleep mode. Overall, I would recommend this product as it does its job to the utmost.