Great concept..but plastic pipe.. getting heated.. would leach dangerous chemicals into the water! Better use copper...and a insulated stainless steel tank to collect the hot water. Hugely more expensive..but you will save on futre medical bills!!

We heat our above ground pool this way. We have all the black flexible irrigation pipe/tubing mounted on our garage roof. But we do use a water pump to circulate it from the pool to the roof heating coils/tubing. And we are located in Western Canada. We have had it now for about 8 years, works great.

all instructional videos are better without backgound music on repeat!

If you can rise the temperature to 100 C and it's possible by the way ,then you can use these free energy to desalination of sea water and saving the planet and the humanity 💚 I'm totally proud of you man

Further improvements can be made by painting the outside black and pumping the water around true the pipes and into the barrel again, then all water will become hot. That is to say, if the barrel is isolated on the outside with very thick polystyrene and is painted black.

Simple, cheap and efficient. Like this good engineering should be.

Use copper coil, circulate water, insulate tank, and add solar tracker for better results

Would work a lot better if the reflector barrel was parabolic. A lotta' heat not even being focused!

Try that in the UK, 17 degrees in probably 10 degrees out.😅

You must run the pipe back into the water tank to circulate by convection when not in use because now you are only heating the water which is in the pipe which is not much. Nevertheless great job 👍👊👌🙂

Mi abuelo los fabricaba de manera profesional usando el principio que ahi se ve.... Y claro mas eficientes el agua hervia al salir y se mantebia caliente por muchos dias aun en dias nublados, Calentadores de sol America....ganaron varios premios en diferentes paises..hace mas de 50 años

Very good! Cheap to build and effective. For Europe or North America only works for maybe 7 months. Awesome for cabin or camping! Drain into a giant thermos and youd have tons of hot water

Great idea and effective. I would make some minor modifications but you got me thinking. Fabrication was very neatly executed. Thanks for sharing 😊

Brilliant! Thankyou for this.❤

Awesome idea brother

Perfect. Thank you for sharing

great Idea for off grid campers. Could easily made portable.

You are a genius!

Great if you have sunshine. It might heat 1 litre a day where I live.

Interesting idea. But you need different material If you want to use the water for drinking and cooking...

nice ill try to make this weekend...thanks!

Super👌

you should run the water from the valve back to the tank and it will heat all the water doing it the way you have will cause the water inside the reflector to continue to heat till it boils and scald you and only supply you a small amount of water. I also built one use copper tubing vertical and sat it over a small fire just to heat washing water that could be lifted of the fire when sufficient hot water was made using the same lay out that you have used here

Always 👏 people applying themselves, maybe try a copper metal coil instead, better conductor of heat.. or possibly a glass coil to receive sun light.. Hope and wish you results..

HOW much heat does this receiver get from the sun SIR ?? Simple and really works for free.

Thank you good video

Hmmmm, great idea, even on a cloudy day it will still heat some.

Brilliant.

Super 👌

Very nice Brother

Excelente 👍🏻

Low-tech, cheap. Perfect!

We built something similar (a pool heater) for my son's pool. We raised the temperature on average by nine degrees every 24 hours for three days before it stopped rising.

You could connect it back to the barrel and let convection circulate it back around to eventually heat the entire barrel of water.

If the mirror was a parabolic curve with the pipe at the focal point it would be capturing much more of the suns heat. As it is a lot of the sunlight hitting the mirror is reflected straight out and wasted. It might melt your hose though!

So haben wir zu DDR Zeiten schon warmes Wasser erzeugt

i seen little stainless food grade barrels and wondered about that type water heater,,Sunshine energy make me hot tea🙏🏼

I guess the drum is about 300 litres at best so how are the other 2,700 litres heated?

Connect your outlet pipe back to the drum. Ideally use the heater with some uphill slope and connect the higher end at a higher level in your tank and the lower tank connection to the lower heater connection, this should give you thermo siphon flow so you heat the whole tank. You can still tee in an outlet at same point or take another connection direct from the drum bottom

Copper tubing absorb heat better. With black coating

Excellent... (Lower background noise😅)

unreal! With the given reflector and heating the water by 25 oC, I estimate a maximum of 300 l/day

Buenas , el sistema es bueno , pero no funcionaria ,puesto que las temperaturas que se alcanzan de mas de 100 grados centigrados fundirian esa goma. Habria que hacerlo con cobre y para mayor rendimiento tapar parte superior con cristal o algo parecido aislar y meter una pequeña bomba saludos Hello, the system is good, but it would not work, since the temperatures that are reached of more than 100 degrees Celsius would melt that rubber. It would have to be done with copper and for greater performance, cover the upper part with glass or something similar, insulate it and put a small bomb. Regards

When the shtf big time and the power is gone this would be awesome for an old time shower. Like once or twice a week!

Es ist ein Durchlauferhitzer

a great hot tub idea for my gang of barn cats! Rheinhold their leader loves sustainable energy

Nice. Paint the Wood, it will rot fast when the Rain hits it and make a whole that rain can go out. I would use a black Container then blue but good Idea !

For winter use you could rotate it fully and use a propane bbq burner or basically anything that would heatbthe water,should you use the proper materials of course,which would even add a heat sink element to the entire apparatus.

Uno de los pocos vídeos que he visto que sea verdaderamente útil.

Surely make sure max flow rate by ensuring entry/exit of pipe in not restricted then throttle down if needed.. Maybe micro comp control🤔

Another thing, heat rises that’s why tanks are always in the loft as that’s the hottest point so he should have a container at the bottom connected to the container at the top and that way the water would get hotter, as the water warms it would heat the top container/ highist point and as it cools it would flow back to the bottom container/ lowest point then the cycle would keep repeating and the water would keep flowing naturally so there would be no stagnant water

Also make the top glass or Perspex a one way mirror.

This is a marvellous idea. It's easy, cheap an reliant. You can easy heat up the water collected by a canister from the rainfall on your roof going down the drain pipe. I even have a quite cheap proposal for upgrading the system. The idea of using a glass sheet to get internal reflection and thus a higher yield of thermal energy is great. But if you would coat the tube in prior with a black color, which is IR reflectant, the tube would heat up even more, since less light from the VIS range is reflected (1. Loss) and less thermal radiation is emitted from the tube (2.Loss). In theory you should be able to boil the water. If this doesn't work yet, one could easily scale the system, so that the tube length is doubled, so more thermal energy is flowing into the water passing through the pipe. Unfortunately I wasn't able finding a simple shop where you can buy such a color yet. But many research paper state that it's actually possible and I even found a company who fabricates such pigments for making IR reflectant colors. The (i think) most promising Pigment should be (FeMn)2O3, which is actually also quite common in nature. Good Luck and keep up the good work.

Good idea but the flow rate looks pretty low . Get that barrel up higher to increase water pressure and it should be okay for a nice warm shower .

Would rather want to know the temp in the storage unit. Considering heat rises, mayHap the colder water will constantly sink to the copper coils Replacing the heated water? My tropical home.. near boils the un-insulated house water pipe that runs in the roof cavity and stays hot well into the night in summer :/ (tin/metal roof)

Теплообменник надо устанавливать в фокусе оптической системы,такое впечатление что в фокусе находится ось трубы теплообменика а не поверхность спирали.На юге,в качестве зеркала достаточно большого старого таза покрашенного аллюминевой пудрой, а металическая бочка,с запорным клапаном от унитаза,это теплообменник и накопитель.С уважением к Вашим идеям.

Estaría genial que se pudiera calentar el agua de una piscina, es decir, pone el depósito de agua debajo y el generador de calor arriba

Donde puedo contactarte por favor

A good basic idea 95% of people could probably manage it ........ until you switched on the welder when it dropped to below 5%

Hello, how do I know what are the materials needed to make the project? Do you have some kind of list or a video explaining or narrating every step?

This may sound a crazy question but is there a way of reversing this from hot to cold.......

The curve should be parabolic !

Can I use this idea to heat the pool?

This is device is called a solar concentrator, there are many design parameters and topologies.

Your reflector is round, thats not perfectly focused. It needs to be parabolic (flatten out the curve a little towards the edges)

I think you could save some money on hose, by using a wide pipe instead of a coil. Same amount of water in and out; less copper

The whole point of parabolic reflector is to concentrate energy on a point. Maybe video distorts dimensions but it seems pipe is way to close to back wall (not at focal point). Most of the light bouncing off reflector is just shooting right back out without hitting hose.

Cover the heating position with double layered glass to trap heat

Quando a água da serpentina sair toda e tiver água do tambor, essa água levará tempo até aquecer.

🆒😎👍!

Yes it works, but... add a pump, use stainless steel pipes, by a TIG welder to weld a big stainless stel tank and last but not least add a small modular nuclear powerplant to provide hot water when it's dark...😅

Very good idea, but not effective in the winter season when the sun don't shine much and the warm water is most wanted. Or is it?

Ống dây để quấn thu nhiệt và dẫn nước là loại nào vậy bạn. Xin cảm ơn

i actually build water heated house warming systems.. for a compagny . i would recomend to use copper pipes instead of the hose laminate them with black aluminium forgete about the pipe in the middle maken them flat. pump water true it and it will get you way more whot water...

What about in middle of winter below 30 degrees

After that store in a thermos container so that the heated water will remain for much time

Does this work in winter?

Maybe put the pipe.in the focal point. A couple of times in the rain and it falls apart.

cool, hot water when it's hot outside.... What about the winter ?

O depoyu yan yatırıp siyaha boyaman yeterliydi 😊

Should use black metal pipe surrounded by wire tube Pain all black.

Would it be the same if I cut a barrel in half and put the foil paper? What is the coil you used made of? The only thing I have questions about is when the hot water was coming out why didn't someone hold the camera for you so can could see where the hot water was coming from?

In Pakistan, but northern Europe?

I dont deny that direct heating solar panels are very good but i feel 3000 litres a day is exagerating . I have 2 off 1m x 2m professionslly made solar panel , that is 4sqm collector area , not sure they could heat 3 tonnes in a day, but they are very good

Materia should be black colour - better absorbs sunlight and holds inside 'cause of covered with glass...

Very interesting. Is it safe to consume water that passes through copper tubing?

Like hot country,s it would work anyhow. In Europe it will work as well, only not this way

In summer we don't need hot water ...and in winter it is hard to see sun in sky .Tell us the method which helps in winter with no sun.

What do you need 3000l of water a day for in a hot climate ? That blue barrel holds how much ?....which means you have to top it up all the time. What is the Focal point of the parabolic mirror ? Many many questions.

👍💵😜

I think instead of jumping into 'how to', maybe talk a little bit more about why and what exactly we're doing at the beginning.

Also 70 degrees are possible, it depends on how log the pipe Haß been standing in the Sun before you fill in the water. Want See how it works with constant flow of 7-8 l/min

Watching from England where the sun never shines.....

perfect teperature for legionella bacteria. 50-60 celcius

It wouldn't work in the uk cos the sun rarely shines cos it pisses down most day's

Wonderful! Warm water when the sun shines. Meaning not in the morning when i need it for showering or in the evening when washing dishes or whatever. It is right available when i am at work and not at home. Another green energy solution wich is completly useless for nearby everybody.

What kind of hose is that and where did you buy it? Link?

But does it work in winter?

where may i order, how do i take a shower

300