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http://www.instructables.com/id/Better-thermoelectric-Cooler-Heater/
Food Living Outside Play Technology Workshop
Better thermoelectric Cooler/ Heaterby karcinagin on July 16,
2008
Table of Contents
Better thermoelectric Cooler/ Heater . . . . . . . . . . . . . .
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Intro: Better thermoelectric Cooler/ Heater . . . . . . . . . .
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Step 1: Open it up . . . . . . . . . . . . . . . . . . . . . . .
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Step 2: Get the size of fan . . . . . . . . . . . . . . . . . .
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Step 3: Go shopping . . . . . . . . . . . . . . . . . . . . . .
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Step 4: New fan installation . . . . . . . . . . . . . . . . . .
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Step 5: Close and test . . . . . . . . . . . . . . . . . . . . .
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Step 6: Other ideas . . . . . . . . . . . . . . . . . . . . . .
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Related Instructables . . . . . . . . . . . . . . . . . . . . .
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Advertisements . . . . . . . . . . . . . . . . . . . . . . . . .
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Intro: Better thermoelectric Cooler/ HeaterHow to get better
cooling / heating with a $20 on sale Travel cooler / Warmer from
WalgreensAnd remember to easily view all the steps add ?ALLSTEPS in
your adders bar at the end.
Image Notes1. Signature Classics2. Wrong
Step 1: Open it upTake the side panel of that covers the
fan/heat sink. 4 Screws
Image Notes1. 12. 23. 34. 45. 92mm Fan
Image Notes1. Warm off Cool2. side panel
Step 2: Get the size of fanMeasure the size of the fan (this one
is 92mm)
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http://www.instructables.com/id/Better-thermoelectric-Cooler-Heater/
Image Notes1. 92mm
Step 3: Go shoppingLook online or your local computer store for
a hi airflow fan but remember the more air flow the louder it will
be. ball bearing fans are louder but the lubricant in themdegrades
vary slow (long life). Sleeve bearing fans are quieter but the
lubricant in them degrades faster then a ball bearing fan.
And if you don't want to have to mod the side panel don't get a
fan that is thicker then the one it hasI found a fan at newegg with
over 100cfm (cubic feet per minute) that it moves but it is at 56
dBa (decibel)
Step 4: New fan installationInstalling the new fan. Remove old
fan by unscrewing the screws.Now for the wiring (i don't no how to
solder so i just used wire tape)
Cut and strip old fan wires (leave like 1 in on old fan if u
want to use it again)Then cut the wire on the new fan Connect the
red to red and the black to black tape with wire tape.
Screw the new fan to the heat sink.
http://www.newegg.com/Product/Product.aspx?Item=N82E16811999613
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http://www.instructables.com/id/Better-thermoelectric-Cooler-Heater/
Image Notes1. China Manufacturing At it best get the right tool,
Bending the fins.
Image Notes1. 2 screws only, fits better with 22. Again Chines
Manufacturing at its best.
Image Notes1. New fan2. Old fan
Step 5: Close and testCut the side panel if you need to for the
thicker fan.Screw the side panel back on and fit all the wiring in
side.
Plug in and test
Now it should cool down a lot faster and with more air flow it
will have to be cleaned from time to time.
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http://www.instructables.com/id/Better-thermoelectric-Cooler-Heater/
Step 6: Other ideasIncrease the voltage to the thermoelectric
thing.Add a fan speed control.Put a internal fan to move the inside
air.Cut/Drill more holes in the side panel.
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ArduinoThermostat withTC74 sensor bygummygoodness
Portable 12V AirConditioner --Cheap andeasy! byCameronSS
Computer liquidcooling with Carparts! byhivoltage
AirCooler/Heaterby videokid842
12 volt airconditioner byrowerwet
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Comments
9 comments Add Comment
Alexii4 says: Dec 31, 2008. 12:28 PM REPLYI'm making one of
these coolers from scratch and need a simple piece of advice. I
have a refrigerator box 2" thick, so I have to put a 2" thick
aluminum blockthrough it and mount the peltier plate to one end and
heatsinks on both. My question is whereI mount the peltier plate.
Do I mount it inside the box and sendthe heat through the box to
the outside or do I mount the plate on the outside of the box
(naturally on the aluminum block between it and a heatsink) andsend
the cold into the box from the outside. HELLLLLP! Thanks everyone..
if possible.. email me tha answer (alexii4@yahoo) ~m
TECHMASTERJOE says: Mar 11, 2010. 7:00 PM REPLYon the inside you
can use a 120mm CPU cooler on the out side and Right stuff foam to
seal it all in but on the inside you will need a heat sink and
smallfan use clear silicon to seal around it if it's a wet box
don't use a fan just put a copper plate DON'T RUN A peltier with
out a sink of some type on bothsides
TECHMASTERJOE says: Mar 11, 2010. 7:10 PM REPLYi have a big
cooler it's about 2ft x 2ft x 5ft i made in to one i use a pair of
127watt peltiers and 2 copper plates 3"x 8"x 1/8" and a pair of old
zelmancpu fans on the out side thermal epoxied to the hot plate and
a small 80mm cpu fan on the cold platefrom room temp in the 80+deg
to low 40deg in about 10mins i have a tem controlled using PWM
driver 12-18v in and 32khz PWM +booster can push20 amps at up to
18volts even if the input is 12volts
i built a lot of LED controllers and the same rules apply to
peltiers just eat a lot more
yandster says: Feb 21, 2009. 8:52 AM REPLYWe're going to build a
dog house and I would like to be able to control the temp in there.
In OK the summers get hot and humid, and there are a few freezesin
the winter. A lot of the options out there made specifically for
pets/pet houses are expensive. Do you think this would work to
heat/cool a medium sizeddog house in the elements?
finfan7 says: Apr 24, 2009. 1:23 AM REPLYIt wouldn't work very
well without a door. And as long as there is a good door and the
floor is off the ground it will stay warm enough for most dogs in
thewinter. For summer you just remove the door and add a fan if
it's too hot. Best summer method is a porch, either on the house or
the dog house so thatthe dog can lay in the shade without being
stuck in a hot enclosed space.
killerjackalope says: Jul 21, 2008. 4:58 PM REPLYI'm not sure
how well this really would work, it might a wee bit but the TE unit
still isn't pulling the heat away faster... Also it's a 92MM fan
not CM 92CM isnearly a metre...
karcinagin says: Jul 21, 2008. 8:32 PM REPLYIn the I will look
into up-ing the power to it maybe
killerjackalope says: Jul 21, 2008. 8:39 PM REPLYHmm Within it's
limits it might help a huge amount...
mikedoth says: Jul 21, 2008. 2:11 PM REPLYThis uses a peltier
right?
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