Question 1

Does this have an internal thermostat to turn the heater off when "its warm"?  If so, what is the turn off temperature?

Accepted Answer

This does not shut off around 45deg. We are in -20deg F right now and have this heater in a 45gal gravity waterer. I temp the water and the heater is on and the water temp is 75deg. This is not ideal because it causes humidity.

Question 2

We bought to and ran them to the tanks on heavy duty extension cords-neither will turn on. What could be the issue?

Accepted Answer

I don't know what kind of breaker you're on. If you're on a 10 or 20 amp breaker, it all depends on what else you've got on that circuit. If you're on 120 volt AC current and you add two 750 watt tank heaters, you've added a 25 amp load to your breaker, and it kicked off. I'd advise putting each heater on separate breakers. They may be simply overloading it. Despite my glowing review, which was based on last year's mild winter, this year we have more sub-zero weather. The 750 watt heater in a 75 gallon tank crapped out on me at -10F and so did a separate 40 gallon tank with the 500 watt heater. I then used an old 1,000 watt floater I had around, and that died last night. I had to get two submersible 1500 watt heaters at the local feed & grain. As I type this, it's going down to -12F and I just blew the house breaker I have one of the tank heaters plugged into. It's a 1902 house that got electricity in 1931 and an oddly configured 1964 upgrade. The parlor lights, porch light, and outside outlet are all on one 20 amp circuit as well as pet heaters for two outside cats, and a heated water dish. I'm on my way out to unplug the cord, dig 50 feet of it out of the snow, and try plugging it into a 20 amp plug in my shop in the barn - have to make sure the other heater, which is plugged into a barn outlet, isn't on the same breaker. Trouble is, if it goes out in the night, I won't know it. Well, good luck to us all.

Question 3

Wish you would sell me one of these without the thermostat control... any chance?

Accepted Answer

I am not aware of any products from this company that are not thermostatically controlled.

Question 4

Can this be used in a small pond with gold fish?

Accepted Answer

I would not recommend.  It is too warm.  I use a bubbler in my pond just to keep open a small hole in the ice for oxygen for the fish during the winter.

K&H Thermostatically Controlled Stock Tank Deicer – Floating or Submersible Livestock Water Heater with Protective Cage & Cord Clip – Safe for Plastic, Rubber & Metal Tanks - 1000 Watt

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