Allied Precision 7621 1000-Watt Floating De-Icer

First, the good news. This pond heater works and it works well. As I type this review, our house is under a foot of snow and the temperatures are just barely out of single digits. Still, our pond pump is burbling away, thanks entirely to this pond de-icer. Pond dimensions might help you in your consideration of this purchase. Ours is a small irregularly shaped pond (it shaped like italy or florida), around 700 to a thousand gallons. About 14 ft long by 3 feet wide and averages about 2.5 ft deep. None of the pond is frozen at the moment. The fish (YES! it is safe for fish!) are swimming, albeit slowly, but last year at this time they were frozen in place all winter and had to wait till spring to thaw and swim around again (yes, they all thawed and survived, but still...) The heater works as advertised and was a cinch to install, sort of... keep reading....Now for the bad news.... As other reviewers have pointed out, nowhere in the description does it mention that you cannot use this without the optional heater guard when using in a plastic or rubber pond. Our pond has a freeform PVC sheet (okay, don't get on me for this.... I am ignorant about materials and am just assuming its PVC but it might be something else) over a sand bottom and we needed to install the cage guard which meant that not only did it cost an additional 10 or 15 dollars, but, we couldn't use the heater right out of the box AND it also could have done damage to our pond (or so I am assuming) if we hadn't noticed that the cage was required. I just think that more people than not are going to need the guard so this deserves a big mention in the product description, OR, now here's a concept.... Why not include the cage guard with the product (since many of us will need it) and those who don't actually need it can sell theirs on the amazon marketplace to the rest of us when ours start to rust or become otherwise unusable.Overall, great product but I have my quibbles.

over the many years of owning several of these units, I consistently get 3-5 years of usefulness out of one of these heaters. They are powerful and can keep the coldest stock tanks thawed but their durability could be improved. I've had heating elements curl and burn the plastic body of the unit, the plastic around where the cord comes onto the unit cracks all the way around. The design could definitely be improved upon but for what it is, it's a solid buy.

I had one like this for years and it worked great, but recently stopped working. I was happy to find this one, since I am already familiar with it and know how it works. The main thing to know it that it doesn't turn off when there's no water so it can overheat if you don't pay attention and if you put it in a plastic water bucket for the horses and let it sit empty, it will melt it before it overheats on you. If this one is like the last one I bought (so far so good) and you take care of it by maintaining the water level properly, it will last for years.

We used it to thaw ice in a stock tank. Worked quickly .

Decent product. As I use these to keep my house water storage tank from freezing in these super cold Alaska winters I replace them yearly, as an insurance. This year I added another simply because it had a longer cord, well that other brand failed causing the tank to ice up and these then failed as well. So back to just using this brand as that has been what worked well for me here in Fairbanks since 1996.My only complaint is that the cord is too short, I would gladly pay more for same product with longer cord.

Used this in my above ground 100 gallon galvanized steel trough to keep it from freezing and to protect my sarasa goldfish. It kept the water from freezing. I like that it’s not constantly heating and only turned on when below a certain temp which I can’t remember what that is. I check the water temp with an instant read the monitor and was very happy to know it was working properly.

This does not work...I ordered one,sent it back, got another one and it does not work....

The media could not be loaded. Fish in pond gather around heater in the winter. We had the same one and it lasted over two years. Great value for the money. Sorry, my husband said the first one lasted close to ten years!

Garde mon bassin partiellement dégelé tout l'hiver, je n'ai pas perdu un poisson depuis plusieurs annees., peut necessite l'installation avec une minuterie

I added an old stove burner to the element below the float in case it should sit on the plastic when the water got low. This kind of improvement could easily be added by the manufacturer.

Bought one of these in 2020 it lasted till this winter 2023. I bought a replacement in November 2023 and it only lasted two months. Trips our circuit breaker on ground faults. Amazon will not take back don't waste your money buying this product. But another manufacture works fine.

I live in canada about 1km from lake ontario. My old heater broke so I bought this one and my pond was completely ice covered and since I put this in I have have zero ice.

I used it to keep my pond with approx 40 fish in open to the air and keep a hole in the ice to enable the gases to escape. It works well but a longer power cable would have been nice. Alan