Homemade solar heater challenge!

Discuss lifestyle changes to better survive disasters. This category is for topics pertaining to being self reliant such as DIY, farming, alternative energy, autonomous solutions to water collection and waste removal, etc.

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Agent281
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Re: Homemade solar heater challenge!

Post by Agent281 » Sat Jul 16, 2005 1:04 am

jamoni wrote:I propose a challenge! Let's see who can build a solar powered water heater from scrap, found materials, etc. Your budget is exactly $0.
You mad man... it can't be done... :shock: :)

Well, I think that I have the advantage because it has been 100-105 degrees the last week with little to no humidity. The horrors of living in socal. :x
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Post by zXzGrifterzXz » Sat Jul 16, 2005 1:06 am

My plans are shaping up nicely. Being able to dumpster dive at work is awesome. Right now I am working on a good way to circulate the water and keep it from going stagnant. Half of my set up now is built with used car parts. :wink:

Pics coming soon.
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Post by Rath » Sun Jul 17, 2005 1:54 pm

okay i'm in. $0 can be spent must find every that laying around.

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Post by TheLastRifleMan » Sun Jul 17, 2005 1:59 pm

I accept you challenge (Picks up Jamoni's glove), sir! Let the foraging begin! :idea:
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Post by jamoni » Sun Jul 17, 2005 6:08 pm

You guys rock. My plans are being kept simple. Hell, on a day like today it would be:
1. get five gallons of water in any container.
2. Set in sun.
3. Bathe in scalding hot water 10 minutes later.
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Post by DevastatorIIC » Sun Jul 17, 2005 8:13 pm

We actually have a 55 gallon black plastic garbage can that mom uses to collect rainwater. At the end of the day, it's quite pleasant, even in chilly ol' Alaksa. ;)
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Post by TheLastRifleMan » Tue Jul 19, 2005 12:30 pm

I have built mine already (7-19-05). It is a modificatin of the five gallon bucket idea. I was able to forage (scrounge) around my house and found what I needed in less then 30 minutes. My heater consists of:

1 white plastic 5 gal bucket

1 roll aluminum foil

1 black plastic 15 gal trash bag

I lined the inside of the bucket with the foil, shiny side out. I then placed the garbage bag inside the bucket, contacting the foil. I used a 15 gal bag so there would be excess to drape over the sides. I then filled with water and took the temperature which was 67 degrees. I am going to wait one hour and see if the temp has gone up and how much. I want to be scientific about this and record the results in order to see if my design will work. I am trying to scrouge up a peice of lexan or a window screen to cover the top to keep dirt and critters away.

Three hours later: temp has gone up to 80 degrees F. Not bad, wish it were warmer.
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Post by Pain Train » Sat Jul 23, 2005 10:37 pm

Well how hot do you need the water? I mean here is a simple rig, very simple to make.

I googled it for a website to explain the specifics better than I could. Use water barrels. Getting large barrels and painting them black so they can absorb the sun, and hold the heat until the cold of night arrives. When the nighttime arrives, the thermal heat that is being stored in the water barrels is slowly released into the air of the greenhouse and this helps to keep your heat bills lower. You can use any kind of barrels plastic or metal and just paint them black. Fill with water and that is it! One extra thing you might like to do is to keep a screen over the tops of the barrels so that water bugs and mosquitoes cannot lay eggs in the water. For best effects use buckets or containers with lids so that the evaporation of the water does not cause you to loose the stored heat as fast. If you have lids that are not air tight you can duct tape the lids close to keep the heat in the barrels.

I suppose you could remove the water if you like and use it for whatever needed purpose, but I sincerely doubt you could ever get it to boil.

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Post by mr.trooper » Fri Jul 29, 2005 1:20 pm

hey! iv been seeing this post for a while, and it reminds me of an engeneering project from college. Suffice it say, that is IS possible to make a solar OVEN that will reach temperatures high enough to bake chocolate-chip cookies (on a warm sunny day) out of scrounged cardboard, and some tin foil.

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Post by TheBlunderbuss » Fri Jul 29, 2005 8:53 pm

Is there still no set goal for this contest?
How much water?
How hot?
Time limit?

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Post by jamoni » Sat Jul 30, 2005 1:52 am

Mine is pretty basic. Some old garden hose, some metal sheeting, and some black paint. I coiled the hose on the sheeting, need to paint it all black and add some spigots and a funnel. We'll see how well it works when I have a little time.
JoergS wrote:Realistically, I think I can launch a nine pound chain saw at 50 fps from a shoulder mounted rubber powered bazooka...
squinty wrote:I reserve the right to yell "Dookyhole!" - or it's Hebrew equivalent if such a thing exists - whilst dispensing a barrage of palm strikes at my opponent.

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Post by Raccoon City Survivor » Mon Aug 08, 2005 3:10 am

Easy, although I won't do it because no tools or supplies are on-hand.

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Post by Survive1999 » Thu Sep 01, 2005 7:08 pm

Large Box cover inside in tinfoil.
5, 2 litre bottles painted black inside box.
Set in sun to warm.
Rig coat hangers to hold the 2 liter bottles.
Attach small garden hose to end of botttles secure with duct tape
Plug hoses with ?
Hang bottles above you tie hose ends together.
Uncork one at a time as needed.

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Post by jade » Fri Sep 09, 2005 1:07 pm

How about making it a little difficult. Warm or hot water can be found during the summer months but how can it be handled during the winter thats approaching? Now thats the question I have in mind. As fo rthis challenge. I'm in a slightly good part of town dumpsters are freaking gold mines. I have found computers, rotiseries (spelling?), toaster ovens, almost new washign machines, almost new living room sets tables and all!

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Post by x_gen » Wed Sep 14, 2005 4:18 pm

Here is my idea, its more of a water making system rather than a water heater but the water you make is going to be warm.

Have a few clear plastic bags, by few I mean 20-30-40, while out in the wild, tie the bag on to some branches with leaves in direct sunlight Make sure the bag is tightened really good so no air gets in (basically youre suffacating a tree), leave enough slack on the bottom of the bag for water to gather, make sure its a really hot sunny day.

The leaves will absorb sunlight, and since they are going to be in a enclosed plastic bad releasing moisture, the moisture will be caught in the bag instead of going out in to the atmosphere and you got yourself some condensation a.k.a water.

1 bag wont do much, but 30 should make enough water by the end of the day to get you through.

This was something I read a long long time ago in the S.A.S Survival Tactics guide when I was away at training Camp

Right now I'm actually looking for this book again(God knows where I put it) so I can scan some great survival tactics and post them up for you guys.

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Re: Homemade solar heater challenge!

Post by BejamminR » Thu Oct 27, 2005 3:17 pm

jamoni wrote:I propose a challenge! Let's see who can build a solar powered water heater from scrap, found materials, etc. Your budget is exactly $0.
DevastatorIIC wrote:Dad made a hot water heater for our outdoor pool (no joke, Alaska doesn't get that hot even in the summer), so he rigged an electric motor to a hose, then fed it up to a few coils of black plastic piping on the roof, then to a hose back down to the pool. Worked perfectly.
Actually, we've done the same thing. Instead of hose ON the roof, it was inside the attic, pressed against the steel roof. Dark-colored steel, black plastic tubing (~500 feet, looped back and forth) and then insulation sealing it in. Provides hot water for the house, and lowered the attic's temperature by ~12 deg. C (around a 22 degree spread in Fahrenheit). Very basic, very effective in the summer. Wood heat for cooking, water, and everything else all winter (350 acres, farm, woodlot) as well as late fall and early spring. So it's covered. Looks like we'll be installing a solar thermal system (flat-plate collectors) instead, though. Stepping upwards. Point of my post is that I've already done it. Can provide pix if you want. What's the prize? :-D

Also, to clarify, by "we", I mean "my family". I'm 21 - this is my parents' place I'm talking about. I'm now an urbanite now - my "bug out plan" consists primarily of getting the hell outta Dodge and heading back home (~200miles). To this end, I keep some diesel around (4-5 gallons is more than sufficient to get me home) and know several routes back, mostly avoiding major highways, some avoiding paved areas almost entirely. In the handful of cases I can imagine that would keep me from making it back there... well, I'd likely be fucked anyway. I keep a BOB around and try to stay stocked anyway, but Plan A is to get back there where 90-95%self-sufficiency is already a way of life (and the other 5% is luxury anyhow). I'll eventually be moving back there and either building another house or building an attachment onto the existing houses (parents or grandparents, both within the farm range). Just for a bunch of detail nobody may want anyhow. ;)

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