Clay Pot Heater DEBUNKED! | First Greenhouse Heating Experiment
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- เผยแพร่เมื่อ 7 มิ.ย. 2024
- So here is my first experiment with trying to heat the greenhouse. I use something I have found on the internet and put it to the test. This is my first greenhouse heating experiment take a look to see how it goes and stay tuned to see more experiments and test. Thanks for stopping by!
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Always fun to try something new
Love 'Bunny and her "does this thing really work?!" series. 😂. Looking forward to seeing more in your greenhouse!
Bunny is great!
I thank you for sharing all these sorts of ways that a person may try, to manage temps in areas that arent included in ones comfy living space.
Man.. I have been wanting to do this for so long! Great hypotheses about insulation or not... that indoor insulation is probably that third greenhouse effect you were talking about. It was a good effort. Good luck in deciding next steps towards heating your green house, Josh!
I've been watching the temps since we are finally getting some real cold and the double greenhouse is impressive even if it's just that cheap little plastic thing. Coldest it has gotten is 29 while it's 16 outside
love your creative and thinking outside the box! hopefully test number 2 is more successful!
I think by my 3rd of 4th test I'll have something figured out
I have a very small greenhouse, by very small I mean it is one of these ones that is just the size of a cupboard that I use for seedlings. I think in such a small space it could work. The pot over the top is a good idea to stop the polycarbonate walls catching fire 🤞
Interesting video. On the third check, it looked like you had frost inside the greenhouse. Planning on setting up a 10 x 17 greenhouse with a low tunnel inside this spring and hoping to extend my growing season here in Maine.
The low tunnel inside might be an awesome fix. My little double greenhouse holds temp pretty well
Great experiment and can't wait for test #2! It was definitely worth trying out to see if it's an option. Inexpensive and not a lot of time invested, so regardless if the experiment succeeded or not, I definitely think it was worth doing. Thanks for showing us some new things Josh!
I'm having fun trying these things so hopefully I get a few more fails to keep going haha
when I put a tealight in a metal lantern (like the old tin lanterns that have holes punched in) that generates heat. I suppose if you are ONLY using one tea light lamp in a large space that won't work so well.
omg. honeycrisp is my all time favorite!!! we use a candle when we camp to help keep dampness down in the canvas tent
Honeycrisp is so good!
Interesting experiment! We have green house plans for this year. Not sure how it will work out, but we changed out all the windows and storm doors in our home a few years back and want to make use of them. I subbed to your channel!! I'm wanting to go back and watch your green house videos!
Oh that will be cool, I love all the old windows turned into greenhouses they always turn out so unique and artistic
Love it, you are hilarious!
Add two black poly barrels filled with water ... During the day it will collect heat and cut your night cold for a couple of hours to assist with other heat sources.
Heat Sink
Heat sink is probably the next test
I use cheap candles and cement blocks tilted over them held up by a brick to heat small cold frames during winter, candle goes out after 3 hours and the block goes cold at the 4 1/2 hour mark, if you wait until it has just got dark, and the frame has insullation(I use foil bubble wrap around the outside walls of the frame and clear bubble wrap rolled out over the plants under the lid) this keeps the plants warm all night
Interesting, I might be looking in to that foil bubble wrap for next year
Would the gaps in the front door help and maybe use 4 candles
You need bigger candles and at least 4 pots from large to small with feet under the bottom pot and saucer to divide it from the saucer. It will get up to 300° or more .
Great experiment, Josh. We use clay pots for watering.😁
The double greenhouse has possibilities. 👍👊
I really am excited about the performance of the double greenhouse and it's not even that great a set-up
It was an affordable experiment worth a try.
For sure
Look up a Cresco candle to use instead for longer lasting than the regular candle
You need to try using crisco candles. They work in my greenhouse. You must use several of them and keep them burning. Put them in a small metal barbecue grill. That works good for me. I also put lanterns in the other areas. You need more than one source of candle heat.
I lined the lower half the greenhouse with sheets of foam insulation. You could line the inside with bubble wrap. (I did and it sure helps and still lets light in). The clay pot set up I saw and use is usually 2 pots. The smaller one pack hole with foil and put bigger pot over small pot.
I also have around inside perimeter of greenhouse jugs of water with black dye in them or you can spray paint black to absorb heat by day to release at night. Have you looked into geothermal earth battery?
Yeah I tried the 2 pots also still didn't seem to do anything. I think foam insulation on my front and back wall would help a ton and I have looked into the geothermal earth battery but it would require digging up a bunch of my existing garden
I just dug 2' to 21/2' x 1' x 2' hole inside my 6x8 greenhouse. Small but that was the only room I had. It did bring in cool air when I first put it in in Sept. It seems to have helped stabilize the temp.
Fla. has apples also + plenty of other fruit 🍓
No time for freezing temperatures when you are having fun on the beach.
This is true, but there are tropical storms half the year, doesn't that make growing in the summer hard too
There is a formula to calculate square footage you are trying to keep warm and the amount of candles needed to reach a desired temperature. There are also better fuel sources than wax that last much longer and are cheaper.
I am trying to protect my mature Agave plant that I planted outside in upstate NY so I bought a 3'X3'X3' mini greenhouse which is way smaller than yours. I have also done some experimenting and early on I'm using a small candle like yours in addition to a 2L plastic bottle filled w/ hot water. So far this is working very good keeping the inside of the mini greenhouse warmer but temps haven't been below 20F yet. As you mentioned, this will not be cost effective and my next experiment will be running an ext. cord to power an ordinary light bulb which will be connected to a therma cube plug that only allows power to pass through when temps dip below 35F. I have ruled out space heater (even a little 200 watt) for safety although if you use a proper ext. cord / power strip you will be OK w/ such low wattage.
Lots of variables in those pot heaters...you have a big, empty greenhouse, different sized pots, etc. But enjoyed your taking the time to share your knowledge and humor!
Thank you for enjoying my goofing. There are a lot of variables which is another reason I just can't see that flower pot heater working, I did a follow up to this one as someone pointed out I didn't set up the pot in the right way but I also didn't have good results with that either.
Im hoping to experiment with a thermal mass rocket stove heating a greenhouse in the future, but thats not the near future.
That will be fun to see
At what video time did you show what the temperature is prior to using the pot?
Found it! 11:23
i had a 5x 3 green house .. thin plastic cover.. set up for our feral cats .. we were 50 mi north of chicago.. i put i n an oil filled electric heater.. only ran it on low setting of 750 watts .. ran it at half sitting most of the time and kept it at 50 degrees.. the heater would turn off if it was tipped over.. might be a better idea than open flame but as they say .. whatever works
Alot like a trip I went on once, we are all circular/balls starting at the nano working up to universe is a ball within yet a bigger ball that is yet in another ball. Hafta say I was maybe 18 that trip 😆
The concept works if you add more candles and let air flow through.
Such an interesting experiment!! “Man it’s like Blair which in here”
Sometimes I crack myself up
I am curious how a couple of light ball would work.
I could try it but I'm trying not to run and sort of power out there. Unless it was solar.
I hear ya. I thought about doing solar out there, but it only runs low wattage LED lights, which is fine for light, but not useful for heat...
i use clay pot heaters for my greenhouse. the trick is use is a can of crisco with three long candles pushed into the crisco. this stays lite for over 3 days. it keeps the greenhouse from freezing. the clay pots are large with two smaller pots inside. just remember the first law of thermodynamics, which basically states you cannot create more heat than what the flame creates. so don't think a candle is going to heat up a room like a space heater, the only thing the clay pot does is difuse the heat so the heat stays close to the pot area. a bare candle. the heat goes straight up to the top of the greenhouse or room. the clay pot heater gives a diffused warmth closer to the plants. it does not get hot to burn yourself or your plants. they just keeps the greenhouse from freezing
my greenhouse is a hoop greenhouse 10x10x7.5' with a double layer of plastic cover with a 2" dead space between the plastic cover. i found the second layer great to help keep heat in the greenhouse. the clay pot heaters can no way heat the greenhouse when temps drop below 20 degrees. they are only to help reduce heating cost you still need a heater for the real cold nights
Josh, check out One Yard Revolution. Patrick Dolan is in Chicago and he has done some cool season extension stuff.
I think dual poly is #1 and you can also build a cold frame inside the greenhouse.
Love that channel He knows his stuff when it comes to growning in the cold winters.
@@zaneymay I agree. And Oscar the cat is pretty cool too.
I've seen a bunch of his video but I don't remember seeing to many about heating greenhouse I'll be going back to see
You need a bigger candle. Make it out of Criso and a metal coffee can and 2 or 3 candle wicks and let some air inside from under the pot.
You need to tilt the pot by about 5mm on one side by using a small wedge or a stick to let air in or the candles will burn out inside 5 minutes..
I had the whole pot up on blocks so air could move freely under it. Do you think it works better if only a little air can more in and out?
I don't think he really knows
A good way to test the effect of candles on the temperature in a greenhouse would be to look at the difference between both the indoor and the outdoor temperature at the start and end of the test.
You'd also need to account for any heat that may have been lost by opening and closing the greenhouse door.
If you had used several candles, and kept the door closed (viewing a thermostat from outside) -- and the greenhouse was well insulated -- you would likely have noticed a few degrees increase in temperature. The cause of the temperature increase would of course be the candles, not the flower pot.
Clay pots don't add heat, but they do absorb and re-radiate some of the heat, keeping it all from rising immediately up the the ceiling. So while they're not increasing the temperature,. they can increase it (for a while, till they cool) in their immediate vicinity.
Great experiment... but yes, it's amazing how much heat it really takes to keep a greenhouse warm. a candle powering a thermal mass (like water) inside a secondary "greenhouse" would work much better... double layering makes a HUGE difference. don't use bubble-wrap.. you will drastically reduce your light transmission.
That's a good thought on the bubble-wrap blocking sun
That foil covered bubble wrap would probably work, just put it on the very top of the greenhouse roof (say a 4ft wide piece the whole length of the green house). Since the sun is low to the horizon in the winter time you should still get enough sunlight.
You have it sitting on the ground which will make it colder on the bottom
Use more candles, maybe 4 show better results. Also try test using a stereo cup.
It's 2 pots, one inside the other, you need.. RTFM
I later tried the 2 pots and it still didn't really do anything. I just don't think it works as well as people make it out to
Had to give up watching to much chat
I’ve been playing with some of these for about a week now I have a can of heat I got at the dollar store it is full of alcohol and has a wick about 3/16” putting that under a 10” pot in a few minutes it will get so hot you can’t touch it without gloves I have a stove fan that runs when it gets hot and I set it over the hole if I cover the hole completely it smothers the fire. Now I have a gypsy wagon I made it’s 6’x8’ with plywood walls almost 4’ high with 4’ square wire fencing arched over the top like your green house there is a layer of the tinfoil double bubble rap over the fencing and a 10’x12’ tarp over that my dog likes to go outside every time I set down so I keep the door open and have a curtain hanging over the doorway now with the candle with the bigger wick it will keep this space between 60 and 70 degrees when it’s 35 outside I got some wicks from Amazon about 1/2” long with a cork ring you stick them in and using vegetable oil they float on top of the oil I filled up a Vienna sausage can with oil and lit 3 of these in the can. It kept the temperatures around 60 and lasted from around 6 pm till about 11 am the next morning before burning up all of the oil. After using up the alcohol in the dollar store can heater I pried off the top with the wick and filled it with vegetable oil and reused it several times the wick gets Carbond up kind of badly after using several days and crunching it up with pliers isn’t helping much it will still wick alcohol but no longer oil I think I have to trim it about 1/2” it has about 6-8 inches in the can and I did pay a hole dollar for it a few years ago I’m guessing I got my money’s worth I have used it several times after using it up. But if your pot isn’t getting to hot to hold your hand on it don’t expect it to heat anything. Something else I had to raise the pot a couple inches above the candles because it the wicks are bigger and producing heat you won’t get enough air and the flame will not burn good and sometimes even go out. I also used the cap from my cand heat it’s 2 1/2”x1/2” filled it with Crisco put 3 of the oil wicks in it burned around 15 hours and kept my gipsy wagon around 60 degrees with the one flower pot but you really need to have the flame on your candles around a inch or more 2 inches starts to smoke and if it’s less than 1 inch flames you may burn your hand if you hold it in the flame but a couple inches away and there’s nothing. Now with my buddy heater I can keep my trailer around 70 degrees for about $20 a month on propane in a 20 pound tank getting the wick working a little better on vegetable oil or the Walmart brand of shortening I can heat the same place plus have light for less than $10 a month. I will say the buddy heater with the stove fan is easier to use just switch it on I was using the pot with the fan hanging over the heater the pot and fan would keep putting out heat 15-20 minutes after turning off the heater you might want to try that in your greenhouse
I'm an expert. You need to insulate the greenhouse. A tarp or blanky.
Okay, I'm not an expert. But that's what I would do.
I'm heating my apartment with ceramic light heaters (on amazon, cheap) under a clay pot. A regular old 250 w heat lamp works, too. But you need to stop all that heat from escaping by adding more insulation, like throwing a tarp over top of the greenhouse overnight.
Something tells me buying 30 tiki lights is a lot cheaper then 550$ a month
I was just watching this video and I feel like it would have worked better if you had soaked the clay pot in water first. It would put out more heat and would also keep the clay pot from cracking.
Thanks for the cool video... Btw speaking of wax, you ate some unless you grew that apple.
Thanks for testing. I have a cold basement with a grow room that I was hoping to use this method. Try to make your video shorter though 20min video way too long even on 2x speed.
Maybe you should have 4 candles ?
The volume of air is too much for just those two candles to heat that large greenhouse - wood stoves are rated to heat a certain amount of square footage. Here in a couple of weeks I'm going to try using two of the candle heaters to heat my hoop greenhouse - it's only 5f x 12ft x 3ft high. It has a double layer of plastic, the layers are separated by a two inch air space. also rather than using the candles you used I'm using a pint Mason jar filled with Crisco (the solid kind) with a larger diameter wick. So I'll be doing my own experiment soon.
It works if you set it up right. You need 2 pots, and need to have all three heating methods in place, Conduction into the pots, radiated heat from the pots and most important, convection. Put a lid on it and you wont get the convection running. One pot over a heat source aint worth a S***
Im excited the double green house experiment seems to be working. The clay pot might be a bust but excited to see what your next experiment will be!
Yeah the double greenhouse has lots of promise might have to make it a tiny bit better
Interesting! Too bad it didn't really do the trick.
the point of the clay pot is to nest them so you have a few pot over the candle
The flower pot heaters i have seen have to hole open. It acts like a convection heater blowing out hot air. Good try
I haven't seen that design, most have a bolt going through the hole and a second pot which is where maybe I went wrong. Perhaps there will be a redo
BUNNY! 😁What if you tried a 5 gallon bucket of water with a water heater in it?
I'm trying not to use any electricity but if I can find a decently priced solar water heater than it's a possibility
Each candle is about 25 BTU per hour output. Adding anything to "store" heat does not increase the amount of heat produced which is a common misconception in a lot of these videos we see. This could have a practical use by being a small radiant heater if you placed it right next to something that is frost sensitive. It will never scale and be cost efficient to keep an entire greenhouse warm. If i was that worried about a few plants I honestly just bring them into the house overnight.
Thank you. After I tried this I looked a lot more into it and really found how flawed this was and how it was just used as a thing to get views on TH-cam. I even tried it with a different pot set-up after some people claimed my pots were just not set up correctly. I want to passive heat my greenhouse or more so retain heat so I can try to grow a lot of plants more than I could bring inside. Thanks for your knowledgeable comment.
Take it off the ground and put it up on a 55 gal barrel, may give you more heat.
Don't give up on this bro. Try a bigger pot with more candles, slight elevate the pot and leave th e hole open.
I might, but bigger pots and more candles kind of defeats the simple cheap way to heat something idea. I have seen a couple other designs that might have more promise, winter is coming again soon so perhaps more experiments will be coming with it.
It is a known fact that water is the most efficient medium to store heat. Why not utilize it ?
This candle's didn't put out enough BTUs you needed probably 4-5. Make a candle from Crisco it will burn up to 72 hours and use in places of the candle's
Should have sat it directly on the concrete slab. Then put a metal air duct on the top of the pot. The heat is escaping out the bottom.
I know this comment is way late but I'm planning on building a cattle panel greenhouse this summer so I am binge watching anything to do with them.
Awesome! Love my greenhouse, I built it a few years ago and wish I had done a couple things different. One is building short side walls like 1 or 2 feet and putting the panels on top of that to give myself some extra height and make it a little wider. Once I added a couple beds inside I ran out of space pretty quick. My work bench on the one end worked out really nice though and I was able to make it pretty functional. Best of luck on building yours, it's fun to have and I can overwinter cold hardy greens in there easily.
@@Citystead I'm going to try a 20 or 24 ft one. Using telephone poles layed down half way in the dirt as a base to build off of. I will go 24 to 30 inches off of the telephone poles. I'm incorporating a bunch of other things I have seen on u tube and even a couple of my own.
May someone put a stove fan on a clay pot heaters.I mean a Wood burner Stove Fan on a brick heater some don't believe that them clay pot heaters makes the room warmer.But what if you put a stove fan on top of a clay pot heaters, will that make the room warmer.Will you do two test.1 with the stove fan and the other text without the stove fan(s)
It will work, however the design is incomplete.
1. The r factor on greenhouse plastic is 1? Which means all heat is escaping. Put thermal blanket or covers on at night
2. There is a relationship between the size of the area and the heat source. Basically you need a larger or multiple fire pots
Let’s try again!
Also the double green house has a large layer of air trapped and that offers more insulation than the plastic
The energy is escaping anyway. All the heat we generate indoors will go out. The better the insulation the less power you need to maintain a certain temperature difference. I guess the idea with the pots is too make it radiate more heat and have less convection. The hot gases from the candle will usually just rise to the roof where you don't need the heat. Still a single candle likely isn't enough to heat any decent space. It's easy to do rough calculations on how much power is needed. Look up the k-value (or whatever it's called in the US) in W/m²K for your glass. You can also do that with the ground floor if you like. Then just multiply it my the surface area and the temperature difference and you get the power.
Good experiment. Would have been nice if it would have worked. Thanks for sharing 💕. NonnaGrace
I was hoping it would be great to get it to over 50
Just doing the mathematics is all the information you'll ever need !
One candle gives about 60 watts heat pre hour .
So the question is can you heat a greenhouse with 60 watts ?
( Or using your 2 candles 120 watts setup ) .
PS
The reason you could handle the pot is heat was radiated as fast as it could be produced !
Massive house Would need like 10.
Double greenhouse might be working because you're not opening and closing the door
Its Math 1 candle gives off 1 BTU 4 candles 4 BTU to heat a 10x10 room you need 200 BTU your only using 2 BTU im sure the room is lager than 100 sq foot
Your greenhouse is too big and uninsulated for that method. I have a 6x6 one (cheap kit)the north side is insulated by a giant pile of leaves in wire fence. I was able to get my onion seeds to sprout by doing them on the bottom mesh shelf positioned directly over (8-10 in.above)2 small jar candles under 2 medium pots. I’m in zone 6. They survived the polar vortex, but I went through 8 dollar store candles plus a couple we had laying around.
Yes insulation is an issue I will be addressing as I think it is my biggest issue with heat loss right now
lol. one candle power is one candle power, doesn't matter what you do with it.
Honeycrisp is the best apple ever. At least that's my opinion.
I'm right there with you
You tried it.
Geothermal heating is what you need.
I have thought about this, I hesitate because my garden is already well established around the greenhouse
You talk too much man, thanks for the info tho
😂 sorry man!
@@Citystead its all good man
Nice job. It doesn't seem as if this things work well.
Yeah the internet lies again!
You need two pots
Build wrong but evin if you build it right i will not help alot in that size greenhouse
Hey, we just called out your channel! Hope you can join :)
Thank you I will be working on it this weekend
Yeah. I didn't put much hope in the candles actually heating your greenhouse.
Either time I tried this it didn't do anything, and there are so many clay pot heater videos on here that I kind of laugh at now.
So I feel you are not being quite as scientific as you think. People say it heats their house, which is insulated, while the greenhouse is not. So this experiment is already apples to oranges. If you conducted the same experiment in your garage at the same time and compared temperatures I think it would be a better experiment.
Second, you don't build your radiating stove the same. Maybe the purpose of a bolt in the top is to plug the hole, but I think it's probably more an added benefit to the real purpose which is nesting pots for a bigger heat sink. Just like doubling your greenhouse layers gets you a better greenhouse effect, doubling your pots should store your radiant heat better. I saw one guy's video which said two pots is enough to heat his house but 3 was too much. In any case, if you switch the bolt for a pot base and it works, you have still proved it works. But if you switch it out and it doesn't work, you haven't debunked it.
I'd like to see you try this again but give the radiator stove a fighting chance. And don't give up if it doesn't work. Try layering more pots or using more candles or making a hobo stove burner. I'd also like you to make your entire greenhouse double walled. I've been thinking of inventions along those lines. Anyway, good luck with the greenhouse.
Your 100% right, I had already played with it a bit and didn't see any results. I used a set-up I had seen in another video that claimed to work. I should add a double layer of plastic for sure to help insulate, a couple years removed from this video and there are things I would do differently to make it a more fair experiment
Anyone who thinks a couple of candles can heat an average room is making a big mistake, just wishful thinking really, if you want heat you've got to put your hand in your pocket and pay for it ,or you could put both hands in both pockets and keep your hands warm❄❄❄😂😂😂
bla...bla...bla...
A 20 minute video to explain what takes 5 minutes 🤦♂️ thanks anyway
Definitely not doing it right could be a bit more scientific
the way you move your camera around makes me dizzy
You didn’t build it right.
I could not watch till the end as the man was talking soooooo much to get to the point that i just couldn't take it,it was torture.
Jesus tap dancing Christ. I don't understand how people are missing the critical point in this design.
Where are your brains?
What do you see that's missing from the pots? Anybody? Anybody? Buehler?
What is missing is the CRITICAL component. And that is the STEEL BOLT that is passed through the holes in the bottoms of the pots.
The 1,500 degree candle flame heats up that steel bolt and the bolt radiates that heat. The point of the pots is to hold the VERY hot bolt because the pots are able to withstand the heat.
You paid no attention at all, did you.
Ok, so there is a giant eye bolt in this set-up. The bolt should heat up and pass that heat into the clay pots (which should also catch and hold any heat that rises up around the bolt). I have done tons of research after doing this and there is no way that the claims of it being able to heat a room are true.