hey lost zombies i had an idea for diy emergency fridge that would require no power and jsut use something you should already be stockpiling. the idea is a propane fridge. no when the zombies come and we all know they will you'll most likely lose power. gas running water all that. now something everyone should have is a propane camp stove to do all your cooking. well why not make that propane do double duty in running a small refrigerator since your going to use it anyway. i know what your saying hows propane suppose to cool a fridge.well i'll tell you.
physics 101 when liquid is compressed into a gas, such as with in your propane tank, when it expands to its normal value it will draw in heat from its surrounds very rapidly. if you ever used one of those can computer co2 dust cleaners and felt it get cold after you sprayed it you know what i mean. now how do you use that principle to cool a fridge. very simple you take some bendable copper pipe you can find at any hardware store. bend it into long you shapes and put a connecter on one end for you propane tank and one for your grill on the other. and when you run the propane through the copper pipe to your stove the copper will get so cold you could lay a an ice cube tray full of room temp water on it and you'll get ice in minuets. I've seen this done and in fact its how fridges on rvs' work.
now you take your copper pipe assembly place it into a decent quality cooler and you have powerless emergency cooler you can use to keep anything you want to keep cool in. use it to make some ice like i said and that will keep it cool between using your stove. its just another way to get the most out of your preps. so tell me what you think and if i get enough people thinking this is a good idea I'll try to make a prototype to test it out in a video. so please comment and be sure to check out my you tube channel REDEADTHEUNDEAD© for more shtf zombie inventions, weapons testing and gear reviews.
"Stay alive, because the dead won't stay dead on their own"!©
so does anyone think this is a good idea, run a fridge and stove off the same propane source, to appliances for the cost of one. anybody!
Wouldn't you need the stove to be working for at least several hours a day in order for your cooler to be effective, even then would it be capable of sustaining temperatures at anywhere near those required for freezing?
ive seen an ice cube tray placed on a copper tube that had propane running through it in the desert heat make ice in under a few minuets. do that a couple of time while you cooking and you can fill up your ice chest no problem. add into that the effect of the coil coiling the confined air and yeah i think it will work. there was actually a short live show on the science channel called stuck with hackett. and in the pilot which i cant find anywhere or I'd show you the clip he uses this method to make ice in like only a few minuets. so if this works its worth the say 23 dollars you would sink into making one. you not using more propane your just using a previously unused aspect of the property's of the gas.
true there is a down side if you screw up in making the copper coils you could get a propane leak which is poisonous or have a sudden combustion even a light bomb. so i'm not saying every tom, dick and harry who never picked up a wrench in his life make this. but i'm a pretty seasoned inventor so i feel comfortable this is within my capability's.
so what do you think is it worth taking it to the prototype phase?
I'm interested in the idea, otherwise I wouldn't have answered, and think it's worth pursuing. I still have doubts though.
There are several very good and easy ways to keep food and drink cool without power but few to freeze, so if this worked it'd be great. I can see this working for a very small cool box but not for something that froze several days supply of meat, dairy and so on.
To freeze enough water to keep any container cold enough to freeze for hours on end, you'd either need lots of propane being used at one time or have it running through continuously, which last idea would bring questions of powering your constant propane pump.
How much coil would you need to freeze the water? For how long would the propane have to flow?
If you put a bag of ice into an cool box, you get two days (or thereabouts) of refrigeration but not a freezer. Could your idea cause such low temperatures that the container would become a freezer?
This isn't an attack, like I said, I'm interested and just thinking about it.
honestly i'm not sure, as far as i can tell out side of RV fridges I'm the only one to pursue this method. i think the only way to find out might be to just build the thing. if nothing else it will be a quick and easy way to make ice in a shift situation. while it has little survival value its a creature comfort that could make a prolonged zombie attrition more bearable.
Worth a shot for sure, at the least it could help to keep an icebox cool. After all, if you're using the propane anyway.
exactly I'll start putting money aside for it,