12 Vdc heater / cooler assembly utilizes a Peltier device to create heat on one side and cold on the other. Driven by a 40 mm square Peltier thermoelectric heat pump, it operates on 13 Vdc @ 5 Amps. Operating at 13 Vdc, we measured the hot side at 190 Deg. F and the cold side at 55 Deg F.
The hot side of the Peltier device is connected directly to a 4.0" x 4.5" x 1.5" heatsink. The cool side connects via an aluminum block to another heatsink that is 5.0" x 5.0" x 1.25". The overall thickness of the unit is 3.8". The Peltier device and the aluminum spacer are between the heatsinks, embedded within an insulating block 1.1" thick. See online "Spec Sheet" section for a disassembled picture. 8" wire leads. Weight: 2.6 lb.
Spec sheet available in PDF format.
Customer Comments
A customer from Phila, PA
amazing little cooler
Don't forget the "cooler" is 30'F colder than whatever the HOT side is. IF you don't use a fan and the hot side gets to 140'F, the COLD side is 110'F. I made a sample cooler to knock moisture out of a sample line before going to a flue gas analyzer. It worked awesome.
A customer from Ohio
Great Cooler
Hooked up an 80mm PC fan on the hot side and let it run in my portable kegerator. After 4 hours, the hot side was only 70*F while the cold side was a nice 9*F. Very good!
A customer from Willow Alaska
Can this be used as a seebeck device?
If I mounted one of these with one side on a hot surface, the other cooled, would it produce a voltage? Any info on how much, as a function of delta tee?
Dr. C. Cavanaugh from Lafayette, LA
Tip for use of this type of product
From using a similar-sized product from my old refrigerator/warmer, I advise using a high-velocity fan, pulling air through the hot side fins and exhausting it upwards (if using it for cooling). Using a hair dryer (on cool) and placing the rear (intake) side on top of the hot side fins and blowing the air up and away, I have managed to get temperatures well below the freezing point of water on the cold side when measured with a thermocouple touching the cold side directly.
A customer from Huntington Beach, CA
design info
I've been doing some research for a cooler considering both TECs and standard refrigerators. Basically it takes about 4 of these to equal a normal sized mini-fridge, but 1 or 2 may work if you keep the door closed. Those of you putting a fan on the hot side for better cooling should ideally put one on the cold side too. What good is it if the heatsink is really cold but your fridge isn't??
Another consideration is that these can run all day while a mini fridge motor will burn out if they're on more than half the time. So for continuous applications (rather than the occasional warm item being added) about 2 of these equals a mini fridge compressor.
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