DIY Aquarium chiller - The Planted Tank Forum
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post #1 of 17 (permalink) Old 10-12-2016, 10:22 PM Thread Starter
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DIY Aquarium chiller

My wine cooler that I used to store my white worms broke. I opened it to see what the problem was and fixed it by adding a capacitor to the peltier chiller device. This got me thinking that this is the same device in a chiller.

https://youtu.be/6svEwVHDVdI

Looks like a neat project and cheap (~$35)!
One thing I would recommend is to hook up an Arduino thermostat or generic thermostat to control the temperature.


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post #2 of 17 (permalink) Old 10-13-2016, 01:36 AM
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I've always wondered about those, send simple enough and pretty plug and play


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post #3 of 17 (permalink) Old 10-13-2016, 01:40 AM
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I use similar chiller with waterblock to keep my black-worm culture at 72F. COst me around $50.
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post #4 of 17 (permalink) Old 10-13-2016, 02:23 AM
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The simple temperature controller with one function would seem to fit well with those.
Something like this one will do the job of control if you are into doing a bit of DIY.

LED Digital 110V Temperature Controller Temp Sensor Thermostat Control Relay US
$9.99
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post #5 of 17 (permalink) Old 10-13-2016, 08:52 PM Thread Starter
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Yeah, It's a cheap alternative to the $200-$400 chillers out there.


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post #6 of 17 (permalink) Old 10-13-2016, 10:35 PM
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Why do you need a chiller in Cincinnati? Genuinely curious, not trying to question you.
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post #7 of 17 (permalink) Old 10-13-2016, 11:57 PM Thread Starter
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Originally Posted by Bananableps View Post
Why do you need a chiller in Cincinnati? Genuinely curious, not trying to question you.
I don't. It's for people living south of me.

If I have a tank/container outside or in my garage, I could definitely use it when it gets in the 90's. I know when I lived in NYC, I needed one. I spent some hot summers there.
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post #8 of 17 (permalink) Old 10-14-2016, 12:11 AM
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May I know what are the needed components, could you list them down. Thank you!

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post #9 of 17 (permalink) Old 10-14-2016, 12:58 AM Thread Starter
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May I know what are the needed components, could you list them down. Thank you!

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It's in the description of the video

http://www.e b a y.com/itm/Thermoelectric-Peltier-Refrigeration-Cooling-System-Kit-Cooler-fan-TEC1-12706-/251751175239?pt=LH_DefaultDomain_0&hash=item3a9d8a 1447

The whole unit here and you'll need a 12V power supply. You can also get that temperature controller PlantRich suggested.

You can also attach a water block to the cold side of the peltier cooler. Use thermo epoxy when you're attaching components to the device.

http://www.e b a y.com/itm/Aluminium-Water-Cooling-Heatsink-Block-Waterblock-Liquid-Cooler-For-GPU-CPU-IR-/291841126749?hash=item43f316315d:g:QzUAAOSw65FXqUu V

You can pump water through the cooler instead of putting it in water.


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Last edited by mistergreen; 10-14-2016 at 01:20 AM. Reason: +
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post #10 of 17 (permalink) Old 10-14-2016, 11:40 AM
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This is really good idea will help save some money. Thanks again.

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post #11 of 17 (permalink) Old 10-14-2016, 01:33 PM Thread Starter
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They sell peltier with a water block here

http://www.e b a y.com/itm/new-DIY-Thermoelectric-Peltier-Refrigeration-Cooling-System-fan-TEC1-12706/331979747094?_trksid=p2047675.c100623.m-1

Assembly photos shown. only $14! It looks smaller so it's likely best for smaller tanks.

You can find the equivalent on amazon of course
https://www.amazon.com/Qianson-Therm...er+water+block


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post #12 of 17 (permalink) Old 10-14-2016, 03:06 PM
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12v power supply can be scavenged from an old computer.
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post #13 of 17 (permalink) Old 10-14-2016, 03:26 PM
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While coolers are very good and this is a worthwhile project if needed, I recommend going for simple things first if they work for you. I experience lots of heating here in Central Texas and find simple fans are good enough for my use.
Peltier cooling from various coolers like wine coolers are one way but it is much easier for many to find the basic items for fan cooling.
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post #14 of 17 (permalink) Old 10-14-2016, 03:54 PM Thread Starter
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Quote:
Originally Posted by PlantedRich View Post
While coolers are very good and this is a worthwhile project if needed, I recommend going for simple things first if they work for you. I experience lots of heating here in Central Texas and find simple fans are good enough for my use.
Peltier cooling from various coolers like wine coolers are one way but it is much easier for many to find the basic items for fan cooling.
How much does the temperature drop with fans at the surface?


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post #15 of 17 (permalink) Old 10-14-2016, 09:50 PM Thread Starter
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hmm, If you add the water block to the heat side of the peltier device, it becomes a heater! I don't think it'll raise the temperature too much but it's worth an experiment


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