Solar Soda/Beer Can Heater - Temperature Output Test 1: 145 Degrees - The Rusted Garden 2013
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- Опубліковано 23 лис 2013
- This was the first test. I did a second follow-up test to support the numbers. It was about 35 degrees out with 20 mile an hour winds. The solar soda/beer can heater generated heat with an output temperature of 145+ degrees. I used a digital meat thermometer in the test.
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I built a green house and I insulated the ground around it with R-14 styrofoam so the natural temperature of the lower levels would rise and heat my the soil in the winter. I went about 6 feet down. It worked great. I also put eight 55 gallon drums of water in the back, I painted them black so they heat up during the day and release the heat at night to combat frost. Combined with you ideas here I could have a year round green house in Iowa lol
So impressed by the result! I was not sure if I really wanted to build it but after seeing a temperature differential of 110 degrees (60 celcius for us Canadians), I'm convinced.
I already have most of the stuff on hand!
hi there just wondering if u did end up building this and did it work? thanks
Wow! your Solar can heater is amazing, I have to make me one of these for my greenhouse. Thank you for sharing this amazing video. You also made it easy the way you explaining it.
We just moved. Going to make full scale one this summer.
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It's nice see a working solar heater on a smaller scale. Ive decided to try this too. Great video.
One day Ill make a larger one.
Wow. The proof is in the pudding so to speak and whoa, I am impressed! I most definitely will be building one of these instead of using a space heater for my hobby house.
Heather Carter Thats a really good use of the idea. Lots of models are made to fit in a window.
Great video , one of the best others left out steps that were important.
Thanks
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Great idea, I will have to try and adapt that for my chicken coop and water heater. It's a frigid 18 degrees here at the moment and the girls are cold. Thanks for the idea, time for a twelve pack.
tfr51 Yeah you have to get those cans through hard work. It works for water heaters too. Its a very cool concept.
Nice video great idea.
Best video on this topic...the rest left out a lot of important aspects . Will try this!😀
I liked the experiment.
This is awesome! I'm going to build one of these to warm up my greenhouse in the winter! I was looking into rocket stoves, etc.... but this is so much easier. :)
+Diana Guillermo Free heat. It is storing the heat in the greenhouse that is an issue. It takes some planning.
+Gary Pilarchik (The Rusted Garden) Any insight on that issue? I haven't yet finished my greenhouse - one more side to nail down. I'm considering putting in a second layer of plastic on the inside, but the greenhouse plastic is SO expensive.
Thank you will copy you are helping to save us
Wow that's amazing! I would definitely like to try this in the future! :)
A fun experiment
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Amazing. Thanks for sharing
Glad to share
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I have several hundreds of empty cat food-cans I`ve stored through the years.( In case I could use them for something).
Hmm, maybe I should try something like this?
Thanks for the idea, Gary!
Best wishes,
Halvor.
Aluminum is better because it heats up faster, but try it!! Anything is better than paying for something.
I would have liked to see you do tests on how much it would heat a Greenhouse or shed. See how much it heats with the thermometer on the other side of the room
I would have to build a larger size heater for that.
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impressive
Amazing results Gary, nice job! Just wanted to let you know that there is a paint specifically made to collect solar heat that might give you a little more heat output. It's made by Thurmalox.
Gideon Gardens Not that I am aware of. Just flat black. No reflection wanted.
Gary Pilarchik "Thurmalox 250 Selective Black, silicone-based paint which collects heat more efficiently than ordinary black paint and resists outgassing to 400F." (no affiliation with company, just think it's an interesting product). We are building larger collectors for the house and will be using this paint. Thought you might find it interesting. www.dampney.com/ProductLine/tabid/123/AT/View/PID/2/Thurmalox-250.aspx
Gideon Gardens Thanks. As this is a small scale heater... if I go larger at some point the paint be helpful. Thanks. I wasnt even aware of it.
In case anyone is looking for the design it can be found at my channel.
Complete Steps for Building A Solar Thermal Soda/Beer Can Heater for A Greenhouse - MFG 2013
You could apply this to just about any space. Add more of these and increase the space heated.
Very interesting...
Gene Hill Yeah I dont see why this cant be used to add free heat period, to places.
Gary Pilarchik
This method of capturing heat has been used as a DIY project for more than 60 years. It didn't really catch on until it became commercialized in the early 19790's
Terry Morris should be option for adjunct heating in homes.
So if the concept is to let the air heat, would it make sense to just make a couple smaller bottom holes [instead of 1 big one] in the cans to reduce throughput and allow more contact with the heated cans?
good
hi there, great video! i have a greenhouse that i just built. greetings from New Zealand. here it gets quite cold indeed 5*c below zero is the most extreme most winters. i have a 4 meter x 3 meter greenhouse covered with greenhouse film and would like to keep it at about 25*c to 30*c during the coldest days. what size Solar Soda/Beer Can Heater would i need, to make it heated enough to sustain that kind of temperature? many thanks i would really appreciate your response. cheers!
We just tested ours and it worked but had a terrible odor from the output. Did you have any odor issues?
Good Idea, but you don't need to drink a lot of beer or lemonade to get cans. You can also use tin cans from fruits or vegetables, they will work too.
Gute Idee. Aber man muss nicht jede Menge Bier oder Limonade trinken um Getränkedosen nutzen zu können. Konsevendosen funktionieren auch.
Very nice!
sumip90x . Fun day.
Gary Pilarchik Have you considered using water in the cans? This would release the heat slower.
sumip90x . In this case I want to heat the air and fill my greenhouse. I have black painted milk jugs in the greenhouse to store heat and radiate it out. I am trying to move as much heat as I can with the heater and store it in the ghouse.
Gary you have to do a test to see what the temperature rise is , on an overcast day . In order to be representative.
Antonio Pachowko In time. Check full sun off list.
Many thanks any way
Thank you for your video thats absolutely amazing. I just watched your video on how to build it first. Can I ask how much difference did this make to the temperature in your greenhouse please? Also as you did this video a while ago how long did this last and did you need to find a way of fixing it to something to stop it blowing away in strong winds? Thank you so much for your informative videos. It has occurred to me that if someone has had a large appliance delivered they might be able to use some of the Styrofoam from that. Often the top piece at least is flat.
So this is old. But you can put it on inside of green house as it stops wind. It add heats to greenhouse but of course when it is sunny the greenhouse is usually warm. The key is having some water barrels or items that would hold the heat of the day for the night. I works well sending heat into a garage too. I still have it but stopped using it after a couple years. One day I want to build a large scale one.
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Very cool. I found my next winter project Hope it keeps it warm over night?how did this work out for you?
I havent used it for a while. I want to use the heat it generates during the day for a dehydrator next year. I think as a model it would be great for adding heat to a workshop on a bigger scale. For nights you need to have some sort of heat storage in your greenhouse like water or rocks. Something that radiates heat back at night. I just dont have the space to build that on my current property.
with that sort of temp 60 c is warm. you could have the tube going in to water tube's. so when it gos dark, the water radiator's. will be warm a little bit longer. because at night time is going to be the coldest?
Thanks. The key is figure out radiation at night.
Pretty cool! Is the idea to put this outside the greenhouse, and pipe the warm air in? If the goal is to prevent frost in the greenhouse, does this provide an advantage over a black thermal mass? It get a lot hotter obviously, but I wonder if it also absorbs more energy than a black bucket of water.
smeghed1025 I have thermal mass in there. My greenhouse isnt sealed well as it is collapsible. But a good use is to take the solar can heat and send it over solar mass objects. Maybe when I get a permanent greenhouse, Ill do some videos.
hello, its great, may i ask, could i place it inside the greenhouse? i am worried about falling branches to damage it. thanks a lot for your time
You can. The trick with heating a greenhouse is using the day heat to warm objects that will release the heat back at night.
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are you able to warm up a whole green house with that one solar can heater in winter? do u use a fan with it to draw the warm air into your green house?
That would not warm a whole greenhouse. It was just a prototype. The issue with greenhouses is that when it is sunny the solar heater works but the sun also warms the greenhouse. When it is cloudy neither work. The heater is a good way to collect heat for specific use.
This is great for during the day when my plants are heated, so what happens at night to keep them cozy? What do I do for night heat?
Linda Mingo Its a prototype. A bigger size would raise temps during the day in colder areas to get them to tomato temp.
If you have a permanent structure the idea would be using the heater to heat a thermal mass source like gravel, rocks, stones or water. That would add some heat at night.
Any idea how long it holds heat once it gets dark? I know that's a loaded question but I'm curious. Currently building one myself
The can heater. Like 2 minutes. The key is getting the heat to warm water a geo mass things so come night time they radiate back. Your right that becomes the loaded question.
I want to use this with my taller hoop house abut 7 foot high it's 13 by 18. I was going to use this and have 5 gallon water containers lining the inside of the hoop house so as the air heats the water will retain some of that heat to let off during the night when the solar panel is not heating. What do you think?
The question to answer is when it is sunny how hot would the hoop house get without it. If it gets really hot naturally you might not need it right away. But as you get deeper into the winter where the cold keeps hoop house temperatures down, I think it would really help.
Wow that is amazing - have you figured out how quickly it cools after the sun goes down? What about on cloudy days? What method are you using for heating at night? I'm asking because I have a garden with less than ideal conditions and just got a little greenhouse for spring seedlings. I'm in Saskatchewan, Canada so will be using it just to try to get a jump on spring. Sadly a winter greenhouse is not an option. Anyway, I am very curious if you are still using this method and to what effect?
So that cools immediately. But the key is scale and having something in the room that holds heat. Often water or rocks. Cloudy days you are out. I am not using it as I don't have land to build what I want. So, I have this filed for the day I move and can build something...You can support The Rusted Garden by using this link for anything you purchase on Amazon. It doesn't have to be garden related. Anything you purchase gives a % return back to The Rusted Garden
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The greenhouse will be sitting on gravel or possibly cement. I'm thinking of maybe making a little sandbox as well to place in there with water containers. Also may make little cold house boxes for the seedlings on the shelves to add a second layer or protection. Do you think laying black cloth over the gravel would have any advantage?
Hi, I enjoyed the vid. How could u get it to work if it had to lay horizontally? Thinking to put it on your roof of my shed, but I don't think it'll work as well because the heat would have to go down to exit the box. So, how would I get it to work if the box must be horizontal?
Gregory Benson The larger designs use a small venting fan to slowly pull the air up and out and in the direction you want it to go.
You don't want to lay it flat, in the winter the sun is low on the horizon, and in the summer the sun is high in the sky. You put a solar heater flat on the side of a structure, so that it get the most sun in the winter, and NO sun in the summer!
It seems like the volume of air that it’s moving is pretty small though, so my question is how big of a space can you hope to heat with something like this?
This was a prototype. You can expand the size quite large.
Where are you now using said can heater? Can you / will you give us updates?
That was from last year. I am not using it right now. I changed the greenhouse I am using and dont have a need. That was more of a prototype to see if it worked. If I go some land I want to build a larger version to heat a greenhouse or work room.
What if you connected the cans together? Making one long tube? Re-purpose an old hair dryer fan for a bit more flow...
***** You dont want the air to move out to fast. I hope to make food dehydrator with it and work on air flow. This was just a prototype. I dont know how much a difference linking them would make.
Gary Pilarchik I was thinking more about this. You are only going to get "X" amount of heating, if you make a long snake, the air will get hotter, but your volume of air will drop. Essentially, you can't increase the BTUs unless you make it bigger. I think. Thanks!
Ok, it has been 3 1/2 years. How is this holding up over this much time?
I retired it. But it is in perfect condition. I am planning on making a large scale model when I move next year.
If you are using celsius - 140F is 60C.
Thanks
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Can the whole unit be used in the greenhouse? In direct sunlight
nelson toups Yep. You could put the unit inside. My will be going out on the south wall. I have too much growing inside.
I built mine and must have done something wrong. Can this be tested in hot weather? Or how can I test this during this time of the year?
Test it any time. What happen to yours.
Actually it got up to 142f. I overreacted. I couldn't hardly feel any heat but when I got a digital thermometer and tested it the highest temp was 142f. I can now see that adding a fan and 200 more cans would heat a small room. Thanks again Gary.
How long will the foam board last exposed to sunlight. The UV Ray's will deteriorate the duct tape. A better tape would be the real metal duct tape. It too will degrade but much slower and has a problem with adhesion in extremely cold weather. This might be a cheap way to experiment with the concept, but in reality would not be as efficient as many other more robust builds. Might be something to build for sitting inside your window just to be convinced to build a larger and more weather proof model.
I do like the curved PVC pipe, although a larger one would move more air and could be covered with pipe insulation and wrapped with flashing to protect from UV degrading it. White PVC will degrade in UV light but simply painting it protects it, not needed if you put the pipe insulation on it. (White PVC pipe is cheaper)
It would over the long run. A better material would be needed for year after year use.
Would it work the same inside the greenhouse?
It would. It brings in a lot of heat on sunny days.
Have you built a larger one yet?
I never did. I didnt have the space. Now I do but have to decide how I would use it.
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You must have bigger holes and a fan. Then you getting more watts out.
THanks
Does it work on a cold day?
+Lucia Tilyard It will in full sun.
Gary Pilarchik Thanks, I'll try it.
This is perfect! I love it!
I have one question, if you had connected the cans so the cold air had only one path to follow through all of the cans(like a tube), would this affect the temperature for better or worse?
Here is an example of what i mean:
ua-cam.com/video/YZ2Ztq5D6rk/v-deo.html
00:54 you can see it perfectly if you pause the video.
Hello Gary Pilarchik : many thanks for giving me chance to ask questions earlier. I 'am into this project same size as you do but for heating home. , and i d like to know more about this and i have questions. During the winter you have prox 150 up to 200 Degree . and you have installed 2 elbos pipe the top one going into the room(House) and the botom coming from the house .wall. in that case how do you switched off during summer time??? manythanks
akim salvatore Hmmm. I dont know. I do know for a house you would use vents with fans. The fan would help draw the warm air out into the room.
I think I would set it up so the pipes bring air in and out of the house could be closed from the outside. A pvc on/off lever for like shutting off water.
the is not working when there is no sunlight. so just put a shade over it :) a white one, preferably
the is not working when there is no sunlight. so just put a shade over it :) a white one, preferably
Your temperature measurements are meaningless without also measuring the amount of airflow through the collector. Your tests showed that the more restricted airflow design showed the highest temp - that is an obvious result. The point of a solar collector is to produce the maximum amount of thermal energy being transferred to the air. This is measured by the temperature increase in a measured volume of air. The way to do that is to measure the temperature difference between the incoming air and the outgoing air for the volume of air being moved; e.g. degrees increase per cubic foot of air flow. What you are doing is like trying to measure a wall area by only measuring its height - meaning less without also knowing the walls width.
Was really to see if this was effective on small scale before taking it bigger. But this helps if I were to take it into a working model. Thanks.
your materials should of been treated wood frame for weather abuse the foam and tape wont even last the winter you can save it by wrapping a wood frame and trim around your styrofoam to save it oops too late 2013
It was just a model. It is still kicking but for long term outdoor use, I agree.
Incredible! Our Government squandered billions into failed solar programs and we had this type of model that works for a few pennies and some aluminum cans! This is amazing.
+Jo DeFranco Just a model but it has great applications for free heat like heating stand alone work shop.