Homemade Solar Hot Water Heater

[TheMari63]

I hope the for ever green team is still as enthusiastic as in this video then. We need the new generations to be as concern as you, now more then ever!! Thank You :)

[MegaYuki12]

This really helped!! Thank You :)

[fivekitten]

This was awesome! You guys are great!

[skunedknuckle]

Just kidding ! GRRRRRRRRREAT Job girls .

[skunedknuckle]

I want you girls to come clean ! Someone is missing a window out of their house and a coil off there refrigerator . and tell that guy you all got to help you that he's got that hacksaw backwords!

[SacramentalMustang]

great video, thanks for your creativity!

[JTO500]

just be careful finding that tubing off old ice boxes..may have dangerous free on or ? still in it!

[albertomunguia1000]

ya han pasado mucho tiempo y no han puesto nada nuevo ....pues que les paso

[kevreilly7]

Its great to see not all the kids are attached to video games!

[kae4466]

bravo , you go girls

[honkytime12]

Thanks for the great video ladies!

[spinaway]

Bravo, Bravo, Great Job.

[MegaAlfie007]

Great Job Girls

Two Thumbs Up

Amazing What You Can Do

No Matter What Age

5 Stars For You

[ponnu1984]

u girls rock...hope u all grow upto be great scientists!

[monkiesowneverythin]

try it with suran rap instead of window, cheaper, and works just as well, so does painting coils black

[B4realalready]

Cheers ladies! Good job.

[Bobster986]

You have good survival skills ladies, keep up the good work!

[queball147]

Hey my fridge is now getting warm thanks girls good Job, Get a double glazing window pannel and stip out one side of the silacone then slide the fridge rads in then seal. Happy sola heating girls very good j uk.

[mexisxchrissy]

Haha, this is great. I'm a junior and we were told by our physics teacher to figure out w design for a solar water heater...however our group is lazy and we decided to make an aluminum foil box lol :) guess were not as dedicated

[MrEnergyCzar]

You are learning skills that might save your life in a few years....good job guys...

[m8s4lif]

Keep it up young ladies. There is no telling of what you can accomplish in your lives if you keep your passion for --------Well -------lets just say doing things smart. Good job.

[changrifa38A]

Is one the best videos I seen of how to make a solar water heater. Nice job

[harmonicamans]

You girls did a wonderful job. That's using your nogen! Before we can discover new ways of doing thing we must try different stuff. Keep up the good work.

[FixedByDoc]

I like your version of this much better than the other ones I have found today. Great job girls. 5* or thumbs. I am going to try this. Favorited your vid so I can follow your directions with my kids.

[SuperTB4]

You said it, Cheers!

[floundericiousWA]

good job kids!

[MrTerryKay]

Really loved the fun aspect of this video. Definately future thermal engineers. Might I suggest stacking several refrigeration units to get the extra length of heating tube required to make it work. Also mirrored sides like a solar funnel oven will help. Great stuff though girls.

[audioalt]

great team work!

[HansVestergaard]

Keep up the great work!! :-)

[playergame06]

ahhhh porr chinese gurl......she like i am Ho

[kashifkbr]

G8 job girls! keep it up

[tou772]

verry good bb

[lescar88]

good job girls!

[kdocki]

Hahahahaha, that poor dad had to do those girls science fair project. Must have pissed off Mama.

Funny way to hold a saw: 4:15

[HoppingMadMedia]

Dude in red shirt staring out the window = creepy.

[scoobydog411]

the government needs billions of bucks . this wont make it . Thats why your house is as cheap as it is ...

[elektor1984]

wtf? using childrin to promot such things! what a crule world we live in!

[motaseemm]

great little girls

[zyanyazahara]

excellent girls!!

[RMCrowley]

what about the freon?? what did they do with it? how could you clean that out to actually use the water that comes out? I hope that girl didn't get any backwash gross.

but the sun rocks =-D

[ZAGTHEGREAT]

Solar Hot Water Heater? Why would you want to heat hot water? Wouldn't you want to heat cold water? WTF?

[mattmaes]

Continue inventing!

Very cool to see young women interested in science and renewable energy.

[jeffery19677]

Great to see young people interested in science!

Don't drink the global warming kool-aid.

But it still does make economic sense to use the free energy of the sun whenever we can.:-)

[av8er140]

I like the little brother watching out the window

[stoo22]

good job girls. keep at it! hopefully the coils were clean and/or the water wasn't consumed!!!

[tim4962]

Well. Great! So the water went in one end and came out the other end. But the video left out the most important information. What was the temp of thewater going in and the temp with the water coming out? I attually like to know. Thanks

[HomeschoolMom2009]

VEry Very Nice ladies.

[heinzhofmann]

Ladies you got all my respect!!!

I had nearly lost hope that young Kids would do anything else but play Nintendo etc. you proofed me wrong, and you are doing a good thing for your Future and the Future of your Kids.

Don`t let anyone put you down! Ignore the stupid comments and learn from the ones that give you idea`s and critics you can consider on your next project (I hope to see more from you, keep up the great work).

[badgerman6666]

good work, but it needs to be explained better, its all good telling us where the materials come from but you need to explain how it actully works before people start making these themselves, i've seen another one be made that used scilicon sealent on the wooden frame and on the plexiglass to make it longer lasting, not very green i know but still.

[briackman]

(sarcasm start) wow really good water heater even i can build that and i'm 13... (sarcasm end)

[crass770]

to keep it hot?

[Sonyoooo3]

Im a dreamer so will it be nice if this can use for one entire town by making a station for free heated water to save extra money and energy? But i think it will cost the town for connecting another pipe for heat water? Mario brother or Joe the Plumber can easely plug and re-plug the pipe.

[Sonyoooo3]

clever using window nice

[SackyX]

Very good work! Very smart!

[stephen3398]

very nice video! Smartgirls

[dowling1981]

Arise Terlaghan, they have spoken. Stephen, do you need to be such a mentalist?

[marknshon]

You girls a little geniuses!!! You make us women proud. Keep it up and don't stop with just hot water! Your thinking is far more sophisticated than some of the people who have commented here. They would not have thought like you when they were your age. At the same time, some people have given you feedback. See what you can surprise us with next! We need to recycle, and we need more solar powered showers in Australia (and the world of course).

[WoundedEgo]

I enjoyed this video on many levels...

Most importantly I found inspiration in the fact that these young women had pooled together their gumption to make a pretty sophisticated piece of machinery, using appropriate recycled parts, and then to document it with decent sound and video... dang, I'm not only impressed, I'm encouraged about our future generations!

Gals - KUDOS!

[MigInDa617]

if 4 lil girls can try and solve the climate crisis y cant the Unite states lol...

[Crander1962]

cute....lol

[YouAdamNazzkl0wn]

so , with an assemblage of stolen goods stripped from the neighbors' houses, they concoct a poosibly toxic water heater.

j/k

I'll give you 4 stars for trying...

So what became of the heater??

Try making a solar cooker.

[trader0108]

Another method Two points of method: (1) Two waters, separated, zero pressure and house pressure, and (2) Use principle of heat-exchange to take heat from zero pressure to house pressure by running copper metal tubing with house pressure, inside the zero pressure water. The copper metal does a very good job of transferring the heat, and many times better than plastic or rubber. Mixing sand and water in the zero pressure water is probably better. Thin aluminum may contain the zero pressure water.

[eggaweb]

To make a useable simple solar hot water system, I recommend using an old water tank. It already has the piping connections.

1. Remove the outer casing and insulation.

2. Paint the tank black.

3. Place in a well insulated box with a glass or perspex front.

[bereaman]

eggaweb-I though of that but theres only two pipes (in and out)-you need a third to thermosyphon dont you.?-suppose you could weld a new one one.

[pcmadmann]

If they say they got everything for free except for the 0.25$ tubing, I wonder how they properly disposed of the coolant that was the refrigerator coil?

Especially in older refrigerators that stuff can be really nasty for the enviroment. Burning holes in the ozon layer. I hope they had the right professionals thoroughly vacume the system in to containers for proper disposal before they ripped it appart!

[jejojassy76]

OMG Tween girls are so annoying!!!

[VolcomStone128]

WOW ITS WORKING! yay congrats american girls..

too poor for good quality warm water?

fock the world in 100 years you aint gonner live anyways use soo much co2 as you want...

you aint getting children anyways and it would be wrong because in america it will just result in a lamed child :P

[coachgeo]

I like the vegetable oil heat exchanger idea. In winter it will just gell up and has summer comes back around whala.... its back to functioning.

That is assuming that gelled veg oil does not expand like frozen water does. If it does... then back to the drawing board.

[jeremusic]

in order to overcome the toxicity problems you could use a vegetable oil in a closed circuit with the coil running through a copper heat exchanger coil in a copper water container ( old immersion heater tank). and yes a matt black high density (tile?...)backing is better than foil. Black surfaces absorb (and radiate!) heat better (Lesleys cube experiment).Good work!

[Garyscott7]

This video & the girls enthusiasm totally made my day! Great idea, great job! Don't let the nit pickers bother you.

[Mechness]

Leaving aside the toxicity problem mentioned already, I just wonder what you did with the refrigerant from the refrigerator. The refrigerant from older fridges (CFCs) destroy the ozone layer, and even the replacement HCFCs have thousands of times as much global warming effect as an equivalent volume of carbon dioxide. Fridges should be recycled in a controlled fashion.

I would have made the coils out of microbore copper pipe sprayed black.

[meg33y]

Its the idea that they came up with which makes this a great idea. They are young girls with, I am guessing, NO metal working experience so they came up with a brilliant idea of reusing pre fabricated piping. The rest of the ADULT community can bend their own god damn piping.

Stop putting a good idea down because you have a better knowledge then a group of 12 year old girls. WOW your a fricken genius.

Maybe they DID get a pro to correctly dispose of the toxic gasses.

IDIOT! THERE SCHOOL GIRLS

[heinzhofmann]

do you have any Idea of how many polluters are just in the US??? The Trucks for example, most Trucks idle all night to keep Truckers warm, or cold. Cole Powerplants pollute 24/7, Oil and Batteryacid drain into the ground. These Girls are doing right, and the Refrigurators get thrown into Landfills, as if no one cares about the Coolant.

[InvalidMemberAccount]

did anyone think of lead solder being used in a non plumbing original installation?

what about the refrigerant oils?

[Oygar]

Good job girls u can be proud of urself. Just some more ideas 2 get this work. I agree with some guys here it would be much better 2 paint the wood parts in black. And if the system would be a closed system it would also work witch circulation so u can maybe heat up some gallons of water. 4 this u have 2 setup up the system in a 30 degress angle so cold water can go from the bottom 2 the top. Topic under and low pressure. Have fun ;o)

[teainthesahara]

Good project.

[scouterkeith]

Thanks for the ideas people. I made one with scrap copper pipe. i didn't think of using old fridge coils.

[weischad]

Nice job recycling, creative! I agree, a black background would be better, something with a high specific heat like thick metal. This "should" transfer more energy into the coils. Depending on your climate, i would expect the coils to expand during the day, and contract at night. Now if you could have it touch the black background during the day, that would be nice.

[horsefly4]

PFFT i can just turn on my water and its warm

[desertblbuesman]

Flat black paint on a piece of sheet metal inside your box instead of shiny foil, which acts to reflect the light back out of the box, might work better. Super nice job of recycling to build solar. win win win situation.

[meg33y]

black piping and a reflective backing would be more effective I believe. The black piping absorbs the heat on the way in and back out again too.

[truthspeaker2000]

if you want to drink the water or cook with

it, a plastic coil is critical due to toxic

reactions of plastic and hot water,

for heating or something else with hot water

it would be o.k.

[poncholopezband]

What is the coil made out off? Could it be made out of anything?

Plastic?

[pipinki]

they should've yelled "we've got a crush on obama!"

[dstnr]

you are mising the big point here you are using an old coil that most likly had R22 in it with some oil and both can kill you if you if you drink them

[irishnorskymadness]

I agree with sig374. This is an awesome project. Keep it up ladies!

[sig374]

You girls are awesome. This is a great project. On a very sunny day you should get some warm water coming out the other end. If you want hotter water you need to increase the area of your heater and add more coils or tubing inside of the heater. The longer the water is exposed to the solar heat the hotter your water will be.

Keep experimenting and showing us your projects. Thanks

[hexdragon35]

ok 4/5

[hucey]

Girls you are incredible but that wont heat up the way coal passes to the air tube that doent heat up the water

[muserwood]

Good job girls, BUT, will it it HEAT the water ?

[tarasvwz]

You girls are awesome!!!

[mail4ss]

good job team!

[ghostses]

Very nice ladies!! Keep up the good work. It's the younger generations like you that will make the changes we need to alter the world we live in...