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Survival and Preparations Long and short term survival and 'prepping'.

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  #1  
Old 06-27-2013, 10:19 PM
rob86 rob86 is offline
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Default $20 air conditioner

I'm not sure how well it would work but it seems like it would work fine for a small room.

http://youtu.be/BAQ6QCB5j_8
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  #2  
Old 06-27-2013, 10:26 PM
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Well got dam....
Thats just amazing
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  #3  
Old 06-27-2013, 10:34 PM
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Ok, I'm impressed. And this won't break the bank either. Bring on the rolling brown outs this summer because I'll be reasdy.
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Old 06-27-2013, 10:42 PM
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One thing to note is that you are simply moving one form of energy to another. The ice, assuming you are using your freezer instead of buying, requires energy from your fridge, and your fridge outputs heat. Cool a room with this, heat up your kitchen which no one should be at night anyways.
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Old 06-27-2013, 11:04 PM
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Unless you use an portable ice maker.
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  #6  
Old 06-27-2013, 11:46 PM
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A 20 second video that, somehow, they extended to over 3 minutes.
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Old 06-27-2013, 11:59 PM
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i got an old pc fan that would be quieter i think i'll try if if i can find my old styro chest i think i will put a baffle in between the fan and the output maybe freeze a bunch of crystal geezer bottles at night and change them out in the day as i go along

this would be cool if you live next to a hotel and can heist some ice

Last edited by bohoki; 06-28-2013 at 12:02 AM..
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  #8  
Old 06-28-2013, 12:08 AM
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If you place a barrier coming from the lid to the level of ice or almost at the ice, the air would be forced to go through the ice and become even cooler.
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Old 06-28-2013, 1:59 PM
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Lots of cool ideas like this at instructables.com
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  #10  
Old 06-28-2013, 3:35 PM
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Put a fan over a open ice chest and turn it on, same thing. You are simply blowing air over ice and not ruining a ice chest.

There is a finite amount of cold in any amount of ice, you just control how fast you are using it.
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  #11  
Old 06-28-2013, 4:00 PM
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I saw a plastic variant the other day for a bit cheaper, as I recall.
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Old 06-28-2013, 4:26 PM
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Quote:
Originally Posted by KevinB View Post
Put a fan over a open ice chest and turn it on, same thing. You are simply blowing air over ice and not ruining a ice chest.

There is a finite amount of cold in any amount of ice, you just control how fast you are using it.
I'm thinking that Ice melts faster in an open chest tho....so if you were really using this to cool off your room....why not cut the top of a $10 chest.
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Old 06-28-2013, 4:56 PM
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Slower this time just for you Turbo, close the door to the room, take the top off the ice chest and turn the fan on. The same amount of cold is blown out of the ice chest no matter what. One hole, 10 holes there is only so much cold in the chest of ice until it reaches room temperature.
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Old 06-28-2013, 5:20 PM
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The heat created by the fridge to make the ice in the house makes this a net gain in heat energy.

I'm surprised he didn't say just get an old dorm fridge and leave the door open.

I understand the concept of taking heat from one room and moving it into another, but it's still better to take the heat out of the room and outside of the building (which is what an A/C actually does).
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Old 06-28-2013, 5:27 PM
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Great idea for Camping just use a battery operated fan and put this in your tent.
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  #16  
Old 06-28-2013, 5:46 PM
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Good for this coming 4th of july firework display on the park.
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  #17  
Old 06-28-2013, 9:14 PM
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i think the goal is to blow coldness at yourself there is no way it is going to cool a room
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  #18  
Old 06-28-2013, 9:25 PM
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Quote:
Originally Posted by Kodemonkey View Post
The heat created by the fridge to make the ice in the house makes this a net gain in heat energy.
but if you make the ice at night when it is cool it doesnt add to the heat of the day
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  #19  
Old 06-28-2013, 10:10 PM
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Quote:
Originally Posted by Kodemonkey View Post
The heat created by the fridge to make the ice in the house makes this a net gain in heat energy.

I'm surprised he didn't say just get an old dorm fridge and leave the door open.

I understand the concept of taking heat from one room and moving it into another, but it's still better to take the heat out of the room and outside of the building (which is what an A/C actually does).
What if you just put a couple of tupperware containers filled with water overnight in your freezer and used that during the day.
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  #20  
Old 06-29-2013, 8:18 AM
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Made one for my boat a few years back so we could sleep in Havasue. Took a 120qt Igloo cooler and mounted an Atwood bilge pump in the bottom of it. Took 3/4 inch clear tubing and ran that up to an old heater core out of a Dodge pick up with a 12v fan attached. Fill the cooler with ice and some salt. An hour later the ice water in the bottom gets pumped up through the core and a fan blows the cold air into the cabin of the boat. 100 degrees outside at night and 69 inside the cabin. Lasted about 5 hours then started to rise. We took out the salt the next night and it lasted all night at 72 degrees inside the cabin.

More expensive then 20 bucks but the 120qt had an opening at the top I took off and used a plastic board to mount the core and fan too. I could take it off at home and put the lid back on and the only thing left in the cooler was the mounting plate at the bottom of the cooler the bilge pump snapped into.

The other good thing about this cooler is the humidity didn't rise in the cabin from the melted ice. Unlike the swamp cooler types. Just a thought for those that want to try it.
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  #21  
Old 06-29-2013, 11:02 AM
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Fyi the 99cent store has styrofoam ice chests.
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  #22  
Old 06-29-2013, 4:08 PM
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Hot damn, for practical day-to-day use not useful, but that'd make a fun accessory when camping or shooting for the day.
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  #23  
Old 07-03-2013, 1:26 AM
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Quote:
Originally Posted by bohoki View Post
i think the goal is to blow coldness at yourself there is no way it is going to cool a room
I have personal experience with a commercial version (not where I got it, just the first site I found it now):
http://www.gandermountain.com/modper...B&merchID=4006 wouldn't cool my pickup camper worth a damn.
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  #24  
Old 07-03-2013, 4:08 PM
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im going to make one of those with two cold air exhaust vents. one for each leg of my shorts. the fact that it holds your beer is awesome. i might never get off the couch again
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  #25  
Old 07-03-2013, 4:45 PM
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Guys and girls, I have a Carrier made in 2005, AC unit I need to get rid of, it works but the switch works intermittent, just needs a new switch or change out the switch with a on off if you are handy. FREE if anyone wants it in Concord.
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  #26  
Old 07-03-2013, 7:17 PM
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Quote:
Originally Posted by Altahick View Post
im going to make one of those with two cold air exhaust vents. one for each leg of my shorts. the fact that it holds your beer is awesome. i might never get off the couch again
Call me when you do it. Im comin over
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  #27  
Old 07-03-2013, 7:33 PM
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What About using Dry Ice?
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  #28  
Old 07-03-2013, 10:14 PM
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Ninety is right. This video should have used a combo of ice and dry ice and salt to get the maximum cooling. We used to make these in our warehouse because we had no cooling system.
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Old 07-05-2013, 12:27 PM
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Well, I'm bored today, it is hot out, and a few friends left some Styrofoam coolers from yesterday. Perfect reason to drink a few cold ones and get something done.
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  #30  
Old 07-15-2013, 5:15 PM
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Stock up on ice!!!
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Old 07-19-2013, 9:47 AM
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How has no one pointed out that he shoves the meat therm. down into the ice chest?
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  #32  
Old 07-19-2013, 10:10 AM
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Here is where I am confused:
A typical home AC unit is a 3-4 ton system.
So it has as many BTU's as 3-4 tons of Ice.
3 tons - 6,600 pounds of ice

So if you drop a 20 pound bag of ice into a cooler, you can get a cool breeze to blow on you, and if you have relatively low humidity, the added benefit of a swap cooler where the water vapor sucks up heat.


Dry ice has 5 times the BTU of wet ice.
So 5 pounds of dry ice would be about the same as 25 pounds of ice.
As long as you have ventilation, CO2 build up should not be an issue.

I just don't see enough cooling benefit over buying a $200 unit from costco.


The best way I have used ice was in an office with locked thermostats.
In the winter, I taped paper around the top edge of a thermostat and dropped ice on top to melt.

So the register thought it was colder and pumped in more heat.
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