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Thread: Tank Heaters?

  1. #11
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    Re: Tank Heaters?

    Quote Originally Posted by wolfracer
    Quote Originally Posted by badflash
    A hot water heater with a circulating pump an a heat transfer coil can work too. Small appartment heaters put out lots of heat.
    That is actually my original and current plan, but I thought if there was a multi-fuel solution it would be worth looking at.
    I believe water heater have, or use to have, a zinc anode in them to prevent or minimize electrolysis. I am not sure if that would effect fish, but that is why it is not recomended to drink hot tap water (or at least it used to be). Maybe newer water heaters are different. I would look into that before trying it.

    From wikipedia "Other examples of protection by use of sacrificial anodes include protection of voids in the glass lining of mild steel water heater tanks via use of magnesium or aluminum alloy anodes,[1] protection of off-shore oil rigs via special alloy anodes for use in salt water, protection of lock gates in water ways, etc." see: http://en.wikipedia.org/wiki/Sacrificial_anode

  2. #12
    Moderator jackalope's Avatar
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    Re: Tank Heaters?

    I'm just using submersible 300 watt aquarium heaters for now. I'm waiting tor badflash to link the controller he recommends
    I use the Linux Operating System ...... Free as in beer!
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  3. #13
    Moderator badflash's Avatar
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    Re: Tank Heaters?

    The best fertilizer is the farmer's shadow

  4. #14
    Moderator jackalope's Avatar
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    Re: Tank Heaters?

    Quote Originally Posted by badflash
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    THX I'm assuming the sensor is stainless ... if it was copper or brass, it wouldn't be good for the fish, right?

    Now all I have to do is get the bucks together before winter .
    I use the Linux Operating System ...... Free as in beer!
    You're never too old to learn something
    Aquaponics - food'n'fish at your doorstep

    Helena, Montana - Home of the Northernmost Monument to the Confederacy

  5. #15
    Moderator badflash's Avatar
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    Re: Tank Heaters?

    I encapsulated my probe in some aquarium tubing and sealed it with aquarium calc. This will control 10KW. It is pretty robust.

    I used 2 1000 watt stock tank heaters. They cost about $25 each. Be sure to get the ones for making the water HOT. Most shut off at around 40F and are just there to stop freezing.

    Aquarium heaters are not up to the task long term. They foul easily and require frequent cleaning. Farm stuff is designed to use it for years, then chuck it out.
    The best fertilizer is the farmer's shadow

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