DIY Solar Water Heater - Build A Solar Pool Heater From old Double Glazed Window 

Good idea and nice work! 👍 👌

Did similar in the ‘80’s in Northern Indiana (Winamac) with a 3ft X 8ft farm livestock watering tank pool. Routed a garden hose from the pump/filter, coiled the hose on a slanted square of plywood (Sunward facing) then back into the pool. Sprayed the hose with black paint. Took the night chill out of the water every day without the use of a glass cover or box. The kids loved it.

Nice video filled with good tips & trix. I'm setting up a solar powered pool heater right now and my goal is 30°C / 86°F. I'm starting with 250 meters / 820 feet of 20 mm / ¾ inch PEM hose in a flat rooftop setup. A 20V rainwater barrel pump (2,000 liters - 528 gallons / hour) will be connected directly to a solar panel, so it's a completely automatic system controlled and powered by the sun. No sun = no pump = no heating. Since I'm located at 60° latitude in the northern hemisphere, I'll guess it'll be some problems to solve along the way, but it'll be fun. Keep up your good work

Seen few die solar panels videos, this one is by far the best

Excellent idea from an old window, thank you for the video!

good idea, i did the same years ago less professional (wooden frame, 3 pipe coils, plexiglass plate) but just a risk, the problem concerns the polypropylene pipes which with heat and time will pierce ... it is necessary that the water circulates permanently otherwise there is a too strong rise in temperature, and that kills the pipes

Woooo, eso me preguntaba yo !! Si se podría poner cristal y luego la manguera !! Muchas gracias !! Excelente video!!

Professional work.

Absolutely fantastic solar heater! Well done my man well done.

Hi, you should point in the description that you reached this temperature boost after some time of heating water in the collector. It's impossible to reach such good results with a constant water flow around 10l/min (9:20 - 10:20). Math says that in such case, with collector size 1m x 2m you are able to boost up the temperature about 3C as the sun provides about 1kW per square meter. It's still better than a nothing. Cheers.

This is a good video. You can run larger pipe - say 200 feet of 1 1/2 black pipe as near as possible to roof to heat and store more water than this. As anything with solar alone - output is greatly varied - but definitely efficient.

¿Usa válvulas de entrada y salida? Gracias y felicitaciones.

Nice design, very neat. Hook it up to a water butt and solar powered pump.

EXCELLENT WORK! QUALITY AND FINISH IS INDUSTRIAL GRADE!

I've seen a similar thing way back using a single-glazed frame (before proper double glazing was common) fitted with a wooden back board. The water was passed along thin copper piping in a zig-zag fashion and painted black for maximum solar absorption. I would be interested to see if that performance can be maintained at the flow rate you show, I get water at that sort of temperature from my garden hose water that has been heated in the sun all day before I turn the mains water on: it runs like bath water initially of course but soon runs out of steam. Yours is a really nice project but I think you'd need a few dozen of those to make a significant difference to a small pool. I love the idea though so well done.

You could gather more heat from the sun if the top surface was lightly etched to keep the rays from deflecting off the glass.

Красавчик! Отлично сделано!

WOW I need one of this heater on my roof for the all house.

Brilliant! Looks snazzy too. Too heavy to carry around... maybe you could mount it in the pool house.

Brilliant idea!

Génial, ça réchauffe une carafe d'eau en 2 minutes...

Imagino um desses aqui em PE, onde a água já sai queimando da torneira kkkk

Very nice. I’ll take the version that mounts to my south facing roof. Better to heat water then burn my shingles LOL. I’ve been watching a lot of these videos and I find myself wondering why some manufacturer doesn’t make a 4 by 4 foot evacuated glass “pocket” to place a heating tube inside. The methodology, simulator to a solar tube could actually boil water. Your are blessed with fine workmanship and ideas.. well done !

Bellissima idea, complimenti, forse ci vorrebbe un piccolo puffer per essere al top 👍

yes, if you trickle the water through the hose i'm sure it gets very hot

EXCELENTE TRABAJO FELICIDADES BENDICIONES PARA TODOS

The best I've seen so far. Thank you very much for sharing. The best for you :)

Grande idea!!! Funziona

Wish I had seen this method of heat water when we had swimming pool

Greetings from Estonia!

Professional Work. Very, Very Good.

great caulk hander

Wonderful work

Muito inteligente . Devíamos aprender para não precisarmos mais de pagar conta para as Empresas de Energia .

Nice work man,very accurate,detalied🥇🔆🌞🏊‍♀️👍

Muy novedoso pero si quisiera un vídeo más explicativo como cantidad de agua que puede calentar materiales utilizados y todo eso ,y si nos das un contacto exelente

It would have been great if you could have measured the input and output temperatures AND the water flow rate so that the net power of the heater could be worked out. It would also be good to know the size of the collector so the power per unit area could be calculated so that the heater design can be scaled up or down depending on an individual need. Otherwise, an awesome idea to encapsulate the coil inside a double glazing unit.

Ingenios,buna idee si pentru alti amatori

This is my favorite way to adhere the pipe to the board so far. I'm wondering if the intake and outake side by side is less productive as far as overall temp is concerned. How are you finding it now that you have some time under your belt?

Good quality! What kind of pump do you use to moving the water? How loud is it? Thanks for your answer in advance.

Very ecologic,,,,Thanks

just watched a video of geothermal system. He could add a set of these to make his system even more efficient!

Genialne

Muito boa ideia gostei, estou com esta mesma ideia com uma caixa de geladeira quero fazer um reservatório como um boli para coloca água quete no banheiro.

Amazing!!

I tried once to pry open a double glass in vain, it broke, am amazed you were able. 👍

Nice work!

Perfect

good idea. thanks for video.

La idea es muy buena, sí se la pule un poco. La tubería de entrada, no puede estar pegada a la salida, porque hace de refrigerante. El agua que calienta el sol en el circuito al salir del sistema, se enfría por el choque térmico con el caño de entrada que trae la alimentación de agua fría al circuito.

Capo genio total!!!!

how much hot water can you produce with this per minute/hour? and temperatures?

Very Thanks for good idea. As i undestood 16 C befor and 46 C after heating. But what is temperature of air ?

Very Elegant!

Для эффективного поглощения нужна не просто черная краска, а специализированная светопоглащающая краска и стекло чисто кварцевое с внутренним отражающим напылением(пропуск ИК лучей только во внутрь). Хотя конечно это все дорого и прибавит процентов 20% к эффективности преобразования. Для проточного нагрева воды от солнца необходимо минимум 3 м кв. поверхности при 100% КПД. В данном случае нужно не менее 8 метров квадратных для проточного нагрева. Принято считать, что 1 ватт греет воду в объеме 1 литр на 1 градус.

Très beau travail ...

la ultima capa de vidrio tambien tiene aerosol?

Last year I built two 4x4 boxes for my 18x48 above ground pool with 200 ft of quality heat resistant 5/8 water hose with brass fittings, the plastic ends will melt and a cheap hose will melt the inside. That was my first mistake, bought cheap water hoses. I ended up getting Good Year hoses. Even though the water hose was black i spray painted them a flat black. I had an old front window from my house for one box and some old shower doors for the other. Cut the ends of some soda cans and put as many as could fit inside the box with the hose and painted flat black. The cans act like a vortex of heat. I use to Y off from my 12 inch intex sand filter pump. Just switch over from pool to solar boxes. I would run a big hose to a smaller hose into the box witch would slow down the flow of water. As the day got hoter i could let the pump run the hot water continuously. I just bought the 16 inch intex sand filter pump but has to much pressure for my hose, so i use my old 12 inch pump directly to the solar boxes. I live in San Diego so the average temp is around mid 70s to mid 80s. Iam in my pool around mid April. I keep a solar cover on it when not using and will lose a couple of degrees at night. I have the pool wrapped with 4 layers of 4 mill plastic witch helps. I keep the temp of the water around 84 to 86. I have got the water up to 90. I will let it get to 88. I have tried the irrigation plastic stuff before but it melted inside. I made many mistakes before i got it right. My neighbors with there nice pretty pools are sitting at the edge of the pool with feet in and i am swimming in my pool. I like to get in the pool early in the morning when the air is cool and the water in my pool is at 84. Those solar boxes get very very very hot, you will burn your hands

Great job!

I saw this done with copper pipes and water came out as steam it wasnt used for pool though.definately bug free water good idea.

hmmm,never thought of painting the glass black,just the interior...background and pipes...looks very nice

Será q é 50m ou 100m de mangueira?

Great job this was my plan for doing it since I have an old window I just didn't know how to connect the inlet outlet pipes won't the tent on the secondary window stop the Sun or is it on the inside of the glass

Excelente idea pero ya ay una nueva presentación de manguera de silicona y funciona estupendo

I wonder if painting the recipient side of the glass isn't less efficient than keeping it clear. In cars and greenhouses the temperature will be lower when making the glass darker or painted.

Super Video.Danke!

This is definitely the best looking solar heater. Heck you could reinstall that in the window. Cut my finger trying to undo a double glazed window. Just cause it looks smooth everyone needs to wear gloves! Thanks for the lesson.

Выходную температуру надо измерять при полностью открытом выходном кране. Дельта входной и выходной температур в пару градусов уже будет достижением. И да, как тут было замечено, верхнее стекло не надо чернить, КПД получится больше. Написал, имея 6-7 летний опыт прогрева купели в закрытом помещении аналогичным солнечным коллектором.

If the glass is black, the sunlight going to the pipe will be less and the water will heat less. Glass should be transparent.

very good

Would it not have been more efficient either to paint the top surface matt black, or leave clear to allow heat to pass through glass with less attenuation?

Me gusto tu supervisor : el gato jajajaja buenisimo

is that irrigation hose, great work

Muito bom. Fique pensando... Você colocou o vidro e se precisar da manutenção?

I need one of those thermometers

What's with the music?

Hi..This job 100% butifull..I love it and like to do that,Can youplease explain me where you connect the in/out sides ? And I did Not understanding how the water flow - is it need to be connected to the pool pump Or it can be "on the side"of the pool and the heated water will do the circulation ? I have on-above ground 3X5 X1.2m pool. Thank's for this nice video /work

Did you connect the heater directly to the pool pump?

а труба не испортиться от солнца?

It was not a good idea to paint the upper glass, too. In that way the solar energy gets transformed to heat at the inner edge of the upper glass. That directly heats up the upper glass and that is cooled by the outer air. Almost nothing of the solar energy hits the coil directly. Change the upper glass to a clear unsprayed one, and everything’s fine 😎

How about adding some vegetable oil to the chamber so heat evenly distribute for all sides of the pipe and also trapping the heat itself without losing any to the air?

Great video. Should the water be fed through the pipe slowly? Otherwise how will it have time to heat up?

Very neat work, but painting the top glass black will just serve to reflect the sun's rays and reduce the overall efficiency. And I bet if you pump the water through at a decent rate, when a steady state is reached the temperature gain will be minimal.

Good Job :)

Nice

Exelente!!

Merci. Quelle genre de tuillio pour regler ce truc

Красавчик. 👍

Thanks

You would need a lot of these plumbed together to make any difference in the pool temperature

great！

wonderful..

46 celcius is pretty hot, have you tried to warm the water with just the black tube?

I wonder if cleaning the inside of the glass with paint thinner and then painting it with ultra black might increase the heat absorption? I would suggest using soft copper tubing painted ultra black. The non sun facing side could be insulated with foam to prevent heat escaping the non facing side of the sun. Maybe the area on the edge of the heater could stage temp sensors, and and a digital flow meter.

How much drip line did you use?

Bravo

Very good system. I will make a similar one. What is the glue/mastic that you use to hold the hose on the glass ?

What about storage for hot water?

Hi I am looking into heating my pool. Between the polycarbonate and the black pipe which one would you recommend?

Так сложно, со стеклопакетом заморочился. Ну браво - хотя можно было более изящное решение найти:) Вода кстати хорошо прогревается в шланге.