I had purchased three of these heaters for my fish tanks because the packaging on the outside stated it was one of the most accurate ones out there. This was true for about 6 months or so then all of a sudden all three of them stayed on and almost cooked my fish! I'm not sure if there is a short or something but for the same exact thing to happen to all three is quite disturbing. I tried contacting both the LFS and the company direct and they are unwilling to fix these for me... Not happy with there customer service or there product.. I would advise not to buy from them...
I bought a 350watt PROII 8 years ago when I had a 75 gallon reef. The heater kept my temp within .3 degrees consistently. I then put the heater away in storage for four years when I had to break down my tank and move. I have now set up my tank again with African Cichlids and the heater still works perfectly. The temp probe and the heating element actually have long enough cords, they can be placed far enough apart to make sure you are heating the tank evenly. The digital temp display is very helpful as well. This is by far the best heater I have ever owned.
I bought the dial version 5 months ago after my Visi-Therm nearly cook my Tropheus. It worked perfectly until now. Temp swings 4-5 deg every day. I don't trust this POS anymore!!I should have read the reviews.
This heater works great at first. It's accurate and easy to set. The problem is after about a year it went nuts and kept rising then lowering the temp. Then it just stuck on. After unplugging for a few hours it would work OK for a day then go nuts again. I replaced it with an AquaMedic titanium heater with controller
Spent the extra money for one of these because of the external thermostat setting and the advertised ability to maintain +/- 1 degree. Woke up yesterday to a 115 degree tank (not 79 as it was set to) and an very expensive pile of African Cichlid (Tropheus + others) corpses. So much for the advertised short circuit overheat protection. I'm going back to an old dependable Eheim/Jager.
I bought two Pro-Heat II (LCD) 150w about 18 months ago. Until a couple weeks ago, they've been great. The LCD readout is handy and the external temperature controller is easy to set. However, both units are now useless. One has a cracked probe and the other is displaying a temperature of 172. Sounds like a common problem with these. Neat concept, but I will never buy this brand again.
I have the Won Brother Pro Heat, titanium heater and it has been very reliable for over a year now. The main thing that I don't like is the themostat dial is too easy to turn, if it is accidently bumped when doing anything with your wiring it can easily change the temperature setting. Never thought about just taping it in place like another poster wrote, but that would be a good idea.
I wish I had read the reviews before I got mine a few months ago. Last night mine gave out. This morning, my two beautiful 10" fontosa died. Since others are having so much trouble from Won Bros., there is no need for me to do the same. The best I can do is prevent others from putting the lives of their fish in jepardy. DO NOT BUY ANY OF THESE HEATERS!
I bought four pro heat IIs 18 months ago and since then two of them have failed in the same way other raters have stated. The readouts on both went into the hundreds so the thermostat never turned on the heating element. For 50+ dollars I expect a quality product.
I bought the digital model (350w) for my new tank setup in Feb. 2005 and really liked its ease of use and accuracy- 3 days later it died on me. Something inside the digital unit that plugs in the wall started smoking and luckily I was home. I figured it was a fluke so I returned it to Won Brothers and they replaced it. The new unit worked great until November '05 when the digital readout displayed 240 degrees. Of course, my tank was not that hot but the heater would not turn itself on after that because it thought the water temp was high. Twice in less than 8 months is enough for me......
I bought a 350W pro-heat 2 which failed after 11 months. The problem is the same as others have had with the lcd progressivly reading higher and higher so that the heater never activates. I returned the unit with 2 weeks warantee left. It came back 2 weeks later with a note saying it was recalibrated. Well it was good for about 3 days before the same problem started creeping back, but now it's out of warantee. Won brothers will not replace or fix. Otherwise it's been a good unit. I also own a 200W pro-heat 1 which has been going well for 9 months, I'd recomend this one over the lcd model. They're both well designed, it's the quality control and customer service that are lacking.
This heater does a great job. Just have a digital thermometer to use in order to set. If the thermostats are off (which I have never had one that wasn't at least some) just set it manually. But the 2 that I have hold temperature within 2 tenths round the clock.
I have used the original pro-heat heater for about 4-5 months now on my 125 gallon tank. I have been very pleased with the results. I have the heater under my tank in my sump and I place the temperature sensor directly in my tank. The temperature of my water is consistantly at 78.6 degrees. It never varies from that mark. As far as the temperature dial that is too easy to turn, I simply place a piece of ducktape over the dial and it is stuck in place. Simple problem with a simple solution. I cannot speak for the long term reliability of this heater, since I have used it for only about 4 months, but so far I have been very pleased.
It's about three months after purchase and I just lost my tank. The digital readout said 132degrees when I woke up. The tank was actually 54 degrees. No heat all night = dead fish. I'm testing it further now and it seems that the digital readout goes up 1 degree at a time randomly and the heater never comes on.
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