We had baseboard heating in the house I grew up in. Copper pipe from a furnace run along the baseboard in portions of each room, encased in a 9” tall sheet metal radiator that was piped into each room., aluminum fins surrounding the pipe. This got hot to the touch. You might look around for something salvaged if you had a benefit to running the heat further from the source. Really enjoying what you are sharing. 🎉
very cool idea. I currently am trying to utilize a sand battery. I am charging some 600watt 24v hot water heater elements with 200 watts 24v of solar throughout the day. Today is my first day. it didn't heat up like I wanted. But ur video has really made me think, definitely might get some 55gallon drums n replicate ur system, just with solar panels n some type of heater element for the sand. also solar on the pump, so during the day it'll heat it up n hopefully throughout the night it will retain the heat.
That’s awesome, so I will say I have experimented with heating elements a bit last winter. Sand isn’t the best medium for a metal heater element just based on observation. Using water to pick up heat from the element and transferring that heat to sand is my thought. That complicates the system a bit lol but i feel like the heating element will have more longevity in water as opposed to stagnant sand. Thanks for sharing. Maby we will build a solar experiment sand mass heater too. Thanks
@Earthdwellershomestead That almost seems counter productive to heat the water to heat the sand. unless it's quicker to heat that U also might try a bells siphon, instead of a pump for the water, it'd be no electricity used.
@@troydefond2307 Using water to heat the sand means that the sand is never going to get hotter than 100C. Doing a quick calculation on this: a 200 liter drum of sand weighs 320kg. It takes 62,937 Joules of heat to bring a kilo of sand from 25C to 100C. 320kg of sand will take 20,139,840 Joules. Round that down to 20MJ. So the 200 liter sand barrel's heat is slightly less than the heat energy derived from burning 1kg of methanol.
Great idea with the solar and the water heater element (or electric stove element). You might meet with more success if your metal barrel has an insulation. Perhaps a galvanized trashcan with a lid. Perhaps one or two inches of plaster of paris on the sides and bottom of the barrel and then filled with the coil and sand. It will heat faster and your temperature will maintain longer. You should be able to hit temps of 500 degrees that will hold for a considerable period of time.
Protect your pipe from galvanic corrosion. Copper and ferrous metals don't play well together. The beauty of this system is in its thermal battery effect. The heat will continue to dissipate into your space long after the fire is out. THAT is why I love mine so much. There is no need to get up through the night to feed the stove.
Nice Job! My only suggestion is to insulate the bucket so your sand battery doesn't immediately send that energy to the air. I'd use a fireproof vermiculite cement mix (3verm+2sand+1cem) for the insulation as a 1" liner inside the bucket.
Thanks for the idea, insulation is definitely a top priority! This was the first experimental build. I’d like to achieve longer thermal mass extraction and insulation will help, along with a larger more efficiently designed system. Thanks again!
@Earthdwellershomestead I don't know if you have cheap access to locally produced vermiculite or perlite, but you can usually source it by the cubic foot for agriculture. Don't buy it in gallon or smaller bags. That's a ripoff for small gardeners shopping in-season.
I hooked up a couple solar panels to a heater coil and put that in a bucket of sand and it got as hot as a wood stove. Melted my first heater coil. I think instead of sand I need to use pea gravel so it can have some dispersion of the heat.
Thanks. Im looking to build a greenhouse house heater. Same in theory but different in scope. I have a hobbit stove from a defunct school is project. It has the boiler built in. I have salvaged electric water heater tanks, using them as passive heating. After watching this im now planning to open one tank run the copper coil thru it fill it with sand then run the cooper to the water tank above it then run it back to the stove. The only thing i would do differently if i was building with what you have is to jave the water closer to the stove otherwise fantastic build. Thank you for helping me work my build out.
Hmm this is interesting. I have a sauna where I heat the water using SS flex pipe around the flue heating a tank of water that is a few feet up in the ceiling. The water heats pretty fast when inside the sauna, unlike when I had it outside. I already tried by placing another SS flex pipe inside the hot tank which also gave me instant warm to really warm water. Now you have a cool idea here with using sand and it seems like it maybe providing even better water output. I'll have to test this, plus sand doesnt cool off as fast.
@@d1mon12 the sand is a thermal mass in itself, making a longer transfer to our thermal mass(or a sauna) this was a small scale experiment. We plan to build a larger heater for the next greenhouse. I’m glad you found some inspiration here, thank you!
Man I absolutely love what you’re doing! 🙌🏻👊🏻 Your experiments are way cool and I hope to do some of them as well! Definitely interested in seeing more on this experiment! I’d like to know what the temp is in the morning after a night of cooling. What is the little sensor computer board your using? Y’all definitely should throw in some more cooking videos with that neat little oven.
Thank you! Glad you found it interesting. If we keep a fire going 24/7 it’s over 80f inside. If we ramp up heat before dark we can store a lot of mass energy, releasing back to the greenhouse keeping it anywhere from 55-70f depending on outside temps
Wonder if it would work better if you had the hot water return near the bottom of the barrel (cause heat rises, then the pickup at the top (so you aren't cooling your sand. The way you have it, the hot water is dumped near the top and naturally wants to stay there where you will lose that energy from the steam coming out
That is a great thought. I may expand upon that. My goal was to just get the water circulating heat. The pump draws from lower In the tank but yes there would be a hot cold line in the tank till the heat seeps
That’s a good question! So if the tank was a little higher we could probably use thermos siphoning. But i f we have a check valve we would keep water in all the pipe possibly leading to a freeze up and breakage.
After hours of running , we’ve not seen or water temps reach 200f coming out. The sand does hold a lot of energy but just to transfer it quickly to the water and air.
If you had your water higher than the heating source yes it could be done, we’re only using solar power. But with that you would have water in the system even when it’s not on, potentially leading to freeze failure of copper. I will say that we’ve had some negative temps already and the sand seemed to insulate the copper and most of the water drains to the tank when the pump shuts off by design. I’ve had a lot of failures lol
Thanks for reminding me, I’ve used many different types of pumps the submersibles last the longest in my opinion. here it is--> SEAFLO 12v 4GPM Submersible Pump www.amazon.com/dp/B07D9T7223?ref=ppx_pop_mob_ap_share
Gave up after 2 minutes....I do NOT watch these for entertainment! I'm here for information. Keep it on topic, to the point, and as brief as possible while conveying the needed information.
If your time is so valuable, why do you waste it being negative? There was a lot of good material in this video, and it stimulated more good ideas in the chat. Move along Negadin.
@@smittysfarms5914 I spent the time to give him feedback. Maybe he'll improve, maybe he wont. But the channels with the highest traffic are those with the least amount of fluff. Higher traffic = more money to the creator. That makes it in his best interests to improve. Feedback isn't negative......unless you're to stupid to understand the difference?
this is the last video where we don't have a microphone. all videos going forward are better audio quality. thank you!
subbed for the fish and the new mic
We had baseboard heating in the house I grew up in. Copper pipe from a furnace run along the baseboard in portions of each room, encased in a 9” tall sheet metal radiator that was piped into each room., aluminum fins surrounding the pipe. This got hot to the touch. You might look around for something salvaged if you had a benefit to running the heat further from the source.
Really enjoying what you are sharing. 🎉
That’s a great thought and gives me some ideas, thank you for watching and sharing !
very cool idea. I currently am trying to utilize a sand battery. I am charging some 600watt 24v hot water heater elements with 200 watts 24v of solar throughout the day. Today is my first day. it didn't heat up like I wanted. But ur video has really made me think, definitely might get some 55gallon drums n replicate ur system, just with solar panels n some type of heater element for the sand. also solar on the pump, so during the day it'll heat it up n hopefully throughout the night it will retain the heat.
That’s awesome, so I will say I have experimented with heating elements a bit last winter. Sand isn’t the best medium for a metal heater element just based on observation. Using water to pick up heat from the element and transferring that heat to sand is my thought. That complicates the system a bit lol but i feel like the heating element will have more longevity in water as opposed to stagnant sand. Thanks for sharing. Maby we will build a solar experiment sand mass heater too. Thanks
@Earthdwellershomestead That almost seems counter productive to heat the water to heat the sand. unless it's quicker to heat that U also might try a bells siphon, instead of a pump for the water, it'd be no electricity used.
@@troydefond2307 Using water to heat the sand means that the sand is never going to get hotter than 100C. Doing a quick calculation on this: a 200 liter drum of sand weighs 320kg. It takes 62,937 Joules of heat to bring a kilo of sand from 25C to 100C. 320kg of sand will take 20,139,840 Joules. Round that down to 20MJ. So the 200 liter sand barrel's heat is slightly less than the heat energy derived from burning 1kg of methanol.
Great idea with the solar and the water heater element (or electric stove element). You might meet with more success if your metal barrel has an insulation. Perhaps a galvanized trashcan with a lid. Perhaps one or two inches of plaster of paris on the sides and bottom of the barrel and then filled with the coil and sand. It will heat faster and your temperature will maintain longer. You should be able to hit temps of 500 degrees that will hold for a considerable period of time.
Left wing qualty aaaah sound.
Thx for your work mate ! Love y'all ❤
Excellent!!!
Protect your pipe from galvanic corrosion. Copper and ferrous metals don't play well together. The beauty of this system is in its thermal battery effect. The heat will continue to dissipate into your space long after the fire is out. THAT is why I love mine so much. There is no need to get up through the night to feed the stove.
Nice Job! My only suggestion is to insulate the bucket so your sand battery doesn't immediately send that energy to the air. I'd use a fireproof vermiculite cement mix (3verm+2sand+1cem) for the insulation as a 1" liner inside the bucket.
Thanks for the idea, insulation is definitely a top priority! This was the first experimental build. I’d like to achieve longer thermal mass extraction and insulation will help, along with a larger more efficiently designed system. Thanks again!
@Earthdwellershomestead I don't know if you have cheap access to locally produced vermiculite or perlite, but you can usually source it by the cubic foot for agriculture. Don't buy it in gallon or smaller bags. That's a ripoff for small gardeners shopping in-season.
I hooked up a couple solar panels to a heater coil and put that in a bucket of sand and it got as hot as a wood stove. Melted my first heater coil. I think instead of sand I need to use pea gravel so it can have some dispersion of the heat.
Very cool! Thanks for sharing !
Thanks. Im looking to build a greenhouse house heater. Same in theory but different in scope. I have a hobbit stove from a defunct school is project. It has the boiler built in. I have salvaged electric water heater tanks, using them as passive heating. After watching this im now planning to open one tank run the copper coil thru it fill it with sand then run the cooper to the water tank above it then run it back to the stove.
The only thing i would do differently if i was building with what you have is to jave the water closer to the stove otherwise fantastic build. Thank you for helping me work my build out.
Hmm this is interesting. I have a sauna where I heat the water using SS flex pipe around the flue heating a tank of water that is a few feet up in the ceiling. The water heats pretty fast when inside the sauna, unlike when I had it outside. I already tried by placing another SS flex pipe inside the hot tank which also gave me instant warm to really warm water. Now you have a cool idea here with using sand and it seems like it maybe providing even better water output. I'll have to test this, plus sand doesnt cool off as fast.
@@d1mon12 the sand is a thermal mass in itself, making a longer transfer to our thermal mass(or a sauna) this was a small scale experiment. We plan to build a larger heater for the next greenhouse. I’m glad you found some inspiration here, thank you!
this may be what I need here in the Philippines....
Man I absolutely love what you’re doing! 🙌🏻👊🏻
Your experiments are way cool and I hope to do some of them as well!
Definitely interested in seeing more on this experiment! I’d like to know what the temp is in the morning after a night of cooling.
What is the little sensor computer board your using?
Y’all definitely should throw in some more cooking videos with that neat little oven.
Thank you! Glad you found it interesting. If we keep a fire going 24/7 it’s over 80f inside. If we ramp up heat before dark we can store a lot of mass energy, releasing back to the greenhouse keeping it anywhere from 55-70f depending on outside temps
That’s a solar controller* I’ll be covering these and making junction boxes for them in the next video Saturday morning**
Thanks for including your engineering. You are ahead of me out here in ks. I/do have wood/aupply.gotta/start/somewhere orforget/it....Dennis
What energizing the oven...you/answering/questions right after pulling bread from "oven" Dennis
@@Earthdwellershomestead Sweet! Looking forward to it! 🙌🏻
If you put the barrel above the stove you could eliminate the pump and it would thermally siphon
Yes that is correct. Hard to achieve with limited space. With solar power we get free energy to move the water daily. Thanks for checking this out
Those copper connections usually need a bit of welding, or they leak, often not good enough to be sealed 100%
Wonder if it would work better if you had the hot water return near the bottom of the barrel (cause heat rises, then the pickup at the top (so you aren't cooling your sand. The way you have it, the hot water is dumped near the top and naturally wants to stay there where you will lose that energy from the steam coming out
That is a great thought. I may expand upon that. My goal was to just get the water circulating heat. The pump draws from lower In the tank but yes there would be a hot cold line in the tank till the heat seeps
Can you eliminate the pump with check valves?
That’s a good question! So if the tank was a little higher we could probably use thermos siphoning. But i f we have a check valve we would keep water in all the pipe possibly leading to a freeze up and breakage.
Since sand batteries can get very hot (> 212 F), how do you go about removing heat from a sand battery that's hotter than boiling water?
After hours of running , we’ve not seen or water temps reach 200f coming out. The sand does hold a lot of energy but just to transfer it quickly to the water and air.
What are you gonna do with that hot water? Heat exchanger?
Not a bad idea but the hot water is more useful as hot water instead of exchanging directly to air. Using it as a thermal mass thanks for asking!
Would this same style system work with a siphon, instead of the electric pump??
If you had your water higher than the heating source yes it could be done, we’re only using solar power. But with that you would have water in the system even when it’s not on, potentially leading to freeze failure of copper. I will say that we’ve had some negative temps already and the sand seemed to insulate the copper and most of the water drains to the tank when the pump shuts off by design. I’ve had a lot of failures lol
Tell me the source of the water pump? Maybe from Amazon?
Thanks for reminding me, I’ve used many different types of pumps the submersibles last the longest in my opinion.
here it is--> SEAFLO 12v 4GPM Submersible Pump www.amazon.com/dp/B07D9T7223?ref=ppx_pop_mob_ap_share
Gave up after 2 minutes....I do NOT watch these for entertainment! I'm here for information. Keep it on topic, to the point, and as brief as possible while conveying the needed information.
If your time is so valuable, why do you waste it being negative? There was a lot of good material in this video, and it stimulated more good ideas in the chat. Move along Negadin.
@@smittysfarms5914 🤣🤣
@@smittysfarms5914 I spent the time to give him feedback. Maybe he'll improve, maybe he wont. But the channels with the highest traffic are those with the least amount of fluff. Higher traffic = more money to the creator. That makes it in his best interests to improve. Feedback isn't negative......unless you're to stupid to understand the difference?
Stupid? You're calling me stupid? LOL, You're a troll that lacks the mental capacity to understand the value here.
@@smittysfarms5914 🤣🤣🤣