Thank you!!! I use the sand battery with the small ceramic elements and it heats my home really!! 0° C and below outside, in my home (a big stidio) is 16-17 inside just with that. 6 pieces in a pot full of sand. Thank you so much ❤
I would use a metal bar to mount the heating element and drop it into the can. And wire it to a battery bank with solar and add a temperature controlled relay to turn the element on and off automatically . Cool build i am going to build one .
@mrbizi5652 I was just about to suggest the same thing. Leave the battery out, use only a solar panel. I would use a larger residential panel generating 40 to 50 volts open voltage and then use a dc heating element with a rating of 48vdc
@mrbizi5652 here's one I'm thinking for a greenhouse of mine. These some imagination so bear with me. Rain barrel I already have. In it put one of those solar powered fountain pumps. Run a line from that pump outside the greenhouse to a DIY solar water heater. Run from the heater, to a drum full of sand and run a copper coil from bottom to top ( like a reversed moonshine condenser), water goes out the top and returns to the rain barrel to start the process again
Makes a nice space heater! Could set it outside with a small solar panel for the day, then bring it in at night to warm the room. Thank you. Great idea for those of us that have no power, and small solar.
There was some guy here in Europe made something similar to your idea except he used a giant boiler and he basically put a lot of sand in it and copper pipe and I think five heating elements inside spaced out and he basically used it to heat up his home the entire winter he filled the copper pipe with some kind of fluid and basically ran it to the radiators around the house
As sand doesn't leak, it seems more logical to insert heating element from bottom. The idea is good and i love this desert accent 😊 I travel :-) Will definitely harvest the + sun of solar panels with these cans :-) Feel very excited. As heating tent is safe way. 😊
What about using a coil burner like the ones older electric stoves used. If you found one that would fit in the bottom of the can or you could put copper or aluminum in the sand coming out of the top drawing the heat up. The stove top coil wouldnt have the burning out from the absence of water. No idea if this would work but might be worth a try.
Mount the heating element in the bottom of the can, it's going to be setting on the blocks anyway. Then you can set your fan on the sand and not have to pull the element out every time you charge the battery up. Just sayin.👍
I would avoid water heating units , because those are made out of copper pipe (and than nickle plated , or chromed). Steel is much more resilient (heating units , like on the electric stove , or barbecue ). There are , also , ceramic heating units (still very cheap) which are extremely durable. I just don't understand , why no one (that I saw on YT) installs heating unit on the bottom of the sand container (heat travels up) and thus prolonging life of the power wires . Also , no one bothered to construct a magnetic induction heating unit , within sand battery (still very cheap and extremely energy efficient) , or to make heating unit DIY (which is incredibly easy , with some calculations) by using heating wire of certain required resistance (for the unit that someone wants to make) and , for an example , ceramic tiles (there are ceramic elements for that purpose , available for purchase - very inexpensive ). Of course , construction (design) of particular sand battery depends of many things , including purpose , availability of materials , skills and knowledge of person that builds it , etc... However , in my mind , the main advantage of the sand battery (besides relatively low cost) is it's capability to store very high temperatures , which can be exploited (used) as needed , trough prolonged periods of time (there is a challenge of constructing proper heat exchange , with some control of heat output). Seems to me , that everybody on YT make those things to raise the temperature in a small room (in some cases - small greenhouses) and for one day at a time.
I can imagine, make this with the 200Wp solar panel, like outside. Make iron "cube", put inside sand, heater element and outside the cube stick the thermoelectric pads. So in the day you can collect heat inside the sand from solar panel and during night taking electricity back with bunch off TEC1 pads
If you insulate the can leaving only the top open you can cook food @180° Celsius temperature connecting the heating element to a solar panel of about 1kw
I had an idea with respect to sand batteries. Inspired by larger industrial applications, one might add an air-pump as a bubbler to fluidize the Sand Bed and release more heat to be distributed by a circulation fan. Evacuated tubes might be used instead of photovoltaic panels. A 45 Watt T.E.G might be enough to power the air-pump when sufficient heat is captured, thus automating the process. An automated solar thermal-mass furnace.
1. mount the heater to the bottom of the can, not the top - heat is going UP so it will dry out the wires and make them crack, it will slowly oxidize the wire and make it break, the contacts are exposed 2. 333F/167C is fire hazard, skin-burn hazard, hazard, unnecessary temperature 3. instead of using an expensive power supply to get 12V, use 10 heating elements i series to connect to the mains output (120VAC) or simply get a 120V heating element, or build one yourself with nicrome wire, use longer wire or more heating elements (12+) to reduce the current draw, extend the heating element lifespan and reduce the temperature
hey @desertsun02 - any ideas on how to combine the radiant heat generation method with a humidifier effect? I don't like current off the shelf methods. Water can hold a lot more heat than just about anything. I wonder if there's a way to automatically heat water up to 200F, cut off and then kick heating back on when it reaches 170F. Of course, a guy might need a 5 gallon bucket. You'd get the radiant heat and some much needed moisture in cold winter months. There's a passive plug that cuts power when it reaches x degrees but I forgot what they're called. Might be a simple start at least. Thoughts?
I see the sand stays hot for long time. I figure it could be used on chest or body to stay warm during outdoor winter if it is wrapped in something safe. We dont want something blazing hot just warm enough and last long time. I hope that makes sense.
So I'm not really understanding the benefit of using sand instead of water as a thermal battery. Is it because its easier to use? Design idea: Why not use a metal pot with a flat lid and fill with water. Heat with element. Can put the metal pot inside a bigger metal pot with perlite to insulate and increase temps.
Water boils at 100*C. Sand goes to over 500*C. Sand also stores the heat much better than water. Your design idea is basically a well insulated kettle.
I have bits and pieces to build something similar, a 15l galvanised bin a 24v heating element, going to run it off a Ugrinsky wind turbine turning a stepper motor as a turbine.
I'm new to this so I'm a little confused. What function does the power supply you showed serve? Also, it looked unplugged so please reply so I can figure this out and build one. Thanks.
I think he used a 12V power supply merely to demonstrate the function of the heater for the purpose of getting temperature readings. His Show Notes describe the use of PV panels (rated at 12 V) so any source will do such as a suitable lead-acid battery.
hi. i haven't done specific time tests but the fan could potentially run for several hours. i know that the more powerful elements don't last long if used without water but my thought is that a very low power element (like the one i used) might last a while. if any water heating element would work it would be this one. (lowest power 'full size' one that you can buy). i'm hoping it will last a couple of years at least.
Really liked the video! I’m thinking the same way but what about using a small oil filled heater ? Embedded in the sand ! Then you would have a safer unit and better control!
@@desertsun02 Thank you for the reply. I can’t burn wood it bothers my breathing. I was thinking a small 30 gallon oil drum a cheap oil filled heater and cut a hole in the side for the controls. I can’t seem to find a suitable heater for my small 900 sq. Home. I have a propane wall unit but it in the living room. It’s either too hot or too cold. Does not work on the whole house. Stupid heater the temp controls also adjust in 4 degree increments. So a variable of 8 degrees? Please let me know more about your thoughts.
How are you today? Can I ask? Do you think there is any danger in doing what I was talking about ? I’m serious about trying this myself and don’t want to make a time bomb! What do you think? Please let me know, thank you.
hi there. any 12v solar panel that is 100w or more would be the best. i've found that the cheaper solar panels are just as good as the more expensive ones (sometimes better) so i usually buy the ones that are low cost. i don't have much experience with the LiFePO4 batteries so i couldn't say which ones are the best. if you are using deep cycle batteries i would recommend the everstart brand. they are sold at walmart. those are the ones i use with my solar electric system. they usually last about 3 years (1000 charge cycles) which is a good solid amount of time.
So you are using a Peltier module to power the fan by using the hot sand to heat the module? I mean it’s cool but it doesn’t last that long and you will have to keep heating the sand with electricity or a fire 🔥 etc….
hi. the 'heat powered' stove fans actually sink heat from the sand up and into the body of the metal fan. there is a small device in the fans called a peltier chip. it turns the heat into electricity and that electricity is fed to the fans motor. all you have to do is set the fan in the sand.
Needs more detail ... time to heat how long heating lasts .. cost effectiveness.. could it be commercialised? Or is there a commercial version already?
concrete suffers thermal damage if heated to much unlike sand...in this application its fairly low temp but Sand batteries in general are meant to run very hot, Up to about 300 °C, the concrete undergoes normal thermal expansion. Above that temperature, shrinkage occurs due to water loss; however, the aggregate continues expanding, which causes internal stresses. Up to about 500 °C Also the SHC of Sand means its heats up and cools down quicker making it easier to operate at larger scale...ie you'll be able to start drawing out energy at a useful temperature quicker, at the cost of the material holding less energy than other materials at the same temperature...
I can see some ways to improve this...or you should stop using metal cans for the sand, not an expert on low heat dissipating materials but, a lot of heat Is being dissipated by the can itself, or you can connect the heatsink from the fan to the metal can and get some of that heat to power the Peltier fan.
hi and thank you! here is a link to a similar one www.amazon.com/SHNITPWR-Switching-Converter-Transformer-Security/dp/B07TZMMZ66/ref=sr_1_12_sspa?crid=6IWSAOF52KGR&dib=eyJ2IjoiMSJ9.3NqJ0oW-fhYU0_zvO1_8ABK443w3-vwmVH66VxlnvZLYt5dTd6LuXK5Bz-zy5acTlS-XNg4cn4z5SrY1Gx_nJP497dxh5ewH-h0BnqBVyent1pnVL-3y_37bu7oizPvjJN6OVFw3H5FbQnEVUG0QqEN5yVNeJDD2_LAK1YEcQox7V_sRfi3XwlPd9DfsP6cXsJZ7tOKnkIOmc9p4Rzrr7HGXxv4wea5CObyo8nncd5o.osIcapz7jRazVg_IaT6V-Ag_qEwWhTwkm4IRrVPumMc&dib_tag=se&keywords=12v%2Bswitching%2Bpower%2Bsupply&qid=1708609619&sprefix=12v%2Bswitching%2Bpower%2Bsupply%2Caps%2C285&sr=8-12-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&th=1 i couldn't find the exact one i used (night be out of stock)
First, there's no electricity in sand, the transfer that makes the fan run is thermal. How hot it gets is not the criteria you should be measuring. It's entropy - if the sand is X degrees C and the room temp is Y degrees C and it has a specific cubic foot size then how long does it take for the sand to drop 1 degree C. You need to measure those parameters.
lets say 5kg of sand, 200C, 50C is too cool to really heat the room thats Q=(5kg)×(0.00084J/kg°C)×(200°C−50°C) .63 kJ of energy To run a oil heater at full blast for 2 hours is like 2kWh, 7200 kJ That's not going to heat a room for long man
Why are folk so excited by the reinvention of the storage heater. I threw mine out in the 1970's when even off peak electricity became too expensive. Instead of sand they used moulded bricks to surround the heating element.
a lot of its to do with Solar... right now solar has an issue with long term power storage at a local level....the idea of a sand battery is you can dump a lot of otherwise unused energy into when the sun shines and then draw it back out to say heat your house when it doesn't potentially months after you stored it depending on the scale and level of insulation at play.... for example imagine if your entire house was built on a big sand battery...where the unused power from your solar panels is dumped into that thermal mass over the summer...then drawn back out again as heating over the winter... its no silver bullet or anything but a reasonable use case for the concept as a whole.
@@johntowers1213thanks for your explanation, what about the thermal bricks that are used as thermal storage, how do they compare? Is it just thermal limitations of the bricks compared with sand? Are the efficiency’s of both comparable ?
Thank you!!! I use the sand battery with the small ceramic elements and it heats my home really!! 0° C and below outside, in my home (a big stidio) is 16-17 inside just with that. 6 pieces in a pot full of sand. Thank you so much ❤
6 elements??
I would use a metal bar to mount the heating element and drop it into the can. And wire it to a battery bank with solar and add a temperature controlled relay to turn the element on and off automatically . Cool build i am going to build one .
I was thinking similar. I would like to see heating element built into the can and then powered by PV panel. What an amazing way to get ‘free’ heat!
@mrbizi5652 I was just about to suggest the same thing. Leave the battery out, use only a solar panel. I would use a larger residential panel generating 40 to 50 volts open voltage and then use a dc heating element with a rating of 48vdc
@mrbizi5652 here's one I'm thinking for a greenhouse of mine. These some imagination so bear with me. Rain barrel I already have. In it put one of those solar powered fountain pumps. Run a line from that pump outside the greenhouse to a DIY solar water heater. Run from the heater, to a drum full of sand and run a copper coil from bottom to top ( like a reversed moonshine condenser), water goes out the top and returns to the rain barrel to start the process again
Makes a nice space heater! Could set it outside with a small solar panel for the day, then bring it in at night to warm the room. Thank you. Great idea for those of us that have no power, and small solar.
There was some guy here in Europe made something similar to your idea except he used a giant boiler and he basically put a lot of sand in it and copper pipe and I think five heating elements inside spaced out and he basically used it to heat up his home the entire winter he filled the copper pipe with some kind of fluid and basically ran it to the radiators around the house
who is?
As sand doesn't leak, it seems more logical to insert heating element from bottom. The idea is good and i love this desert accent 😊 I travel :-) Will definitely harvest the + sun of solar panels with these cans :-) Feel very excited. As heating tent is safe way. 😊
i wonder if you could use something like this for cooking if you just make it large and hot enough. 🤔
What about using a coil burner like the ones older electric stoves used. If you found one that would fit in the bottom of the can or you could put copper or aluminum in the sand coming out of the top drawing the heat up. The stove top coil wouldnt have the burning out from the absence of water. No idea if this would work but might be worth a try.
I'm totally going to build one of these! How long did the sand take to heat up? Thank you for the video!
Mount the heating element in the bottom of the can, it's going to be setting on the blocks anyway. Then you can set your fan on the sand and not have to pull the element out every time you charge the battery up. Just sayin.👍
I would avoid water heating units , because those are made out of copper pipe (and than nickle plated , or chromed). Steel is much more resilient (heating units , like on the electric stove , or barbecue ). There are , also , ceramic heating units (still very cheap) which are extremely durable. I just don't understand , why no one (that I saw on YT) installs heating unit on the bottom of the sand container (heat travels up) and thus prolonging life of the power wires . Also , no one bothered to construct a magnetic induction heating unit , within sand battery (still very cheap and extremely energy efficient) , or to make heating unit DIY (which is incredibly easy , with some calculations) by using heating wire of certain required resistance (for the unit that someone wants to make) and , for an example , ceramic tiles (there are ceramic elements for that purpose , available for purchase - very inexpensive ). Of course , construction (design) of particular sand battery depends of many things , including purpose , availability of materials , skills and knowledge of person that builds it , etc...
However , in my mind , the main advantage of the sand battery (besides relatively low cost) is it's capability to store very high temperatures , which can be exploited (used) as needed , trough prolonged periods of time (there is a challenge of constructing proper heat exchange , with some control of heat output). Seems to me , that everybody on YT make those things to raise the temperature in a small room (in some cases - small greenhouses) and for one day at a time.
Do it then and stop randering on about it. Ill wait....
I can imagine, make this with the 200Wp solar panel, like outside. Make iron "cube", put inside sand, heater element and outside the cube stick the thermoelectric pads. So in the day you can collect heat inside the sand from solar panel and during night taking electricity back with bunch off TEC1 pads
If you insulate the can leaving only the top open you can cook food @180° Celsius temperature connecting the heating element to a solar panel of about 1kw
I had an idea with respect to sand batteries. Inspired by larger industrial applications, one might add an air-pump as a bubbler to fluidize the Sand Bed and release more heat to be distributed by a circulation fan. Evacuated tubes might be used instead of photovoltaic panels.
A 45 Watt T.E.G might be enough to power the air-pump when sufficient heat is captured, thus automating the process.
An automated solar thermal-mass furnace.
1. How big a room can it warm up?
2. For how long?
I always look forward to seeing your videos & thank you do it sharing😊
thank you 😎
1. mount the heater to the bottom of the can, not the top - heat is going UP so it will dry out the wires and make them crack, it will slowly oxidize the wire and make it break, the contacts are exposed
2. 333F/167C is fire hazard, skin-burn hazard, hazard, unnecessary temperature
3. instead of using an expensive power supply to get 12V, use 10 heating elements i series to connect to the mains output (120VAC) or simply get a 120V heating element, or build one yourself with nicrome wire, use longer wire or more heating elements (12+) to reduce the current draw, extend the heating element lifespan and reduce the temperature
hey @desertsun02 - any ideas on how to combine the radiant heat generation method with a humidifier effect? I don't like current off the shelf methods.
Water can hold a lot more heat than just about anything. I wonder if there's a way to automatically heat water up to 200F, cut off and then kick heating back on when it reaches 170F. Of course, a guy might need a 5 gallon bucket. You'd get the radiant heat and some much needed moisture in cold winter months. There's a passive plug that cuts power when it reaches x degrees but I forgot what they're called. Might be a simple start at least.
Thoughts?
I see the sand stays hot for long time. I figure it could be used on chest or body to stay warm during outdoor winter if it is wrapped in something safe. We dont want something blazing hot just warm enough and last long time. I hope that makes sense.
can u put water heater to water radiator with adapter
So I'm not really understanding the benefit of using sand instead of water as a thermal battery. Is it because its easier to use?
Design idea:
Why not use a metal pot with a flat lid and fill with water. Heat with element. Can put the metal pot inside a bigger metal pot with perlite to insulate and increase temps.
Water boils at 100*C. Sand goes to over 500*C. Sand also stores the heat much better than water.
Your design idea is basically a well insulated kettle.
sand tends to be less explody at high temperatures :)
How long to heat up and how long does it last?
how long it last for heating bath
would there be any benefit to using wet sand vs dry sand ( just damp...not saturated with water )
Never subbed so fast ! Knew i was collecting old cast iron dutch ovens for , ' something ' ! Live in a 450 yr old , fridge , so thank you
That's how I was when I watched my first sand heater video he did. New Subscriber ✅
@@321andme
Have u tried it. Did it work
@@ekeminiumoette6566 I haven't tried it myself, but yes, sand heat conductivity does work.
Brilliant! Wondering how long the sand was putting out heat after removing heating element? Thx👍
hi. last temp reading i took was about 3.5 hours in and it was still reading 188F(87C).
@@desertsun02 amazing!
I have bits and pieces to build something similar, a 15l galvanised bin a 24v heating element, going to run it off a Ugrinsky wind turbine turning a stepper motor as a turbine.
hi there. sounds like a good idea 🙂
How about putting water in the sand to protect the element?
Another great video.
Thanks
If the temperatures that he showed were correct, it would boil off.
Or drop down if covered
I'm new to this so I'm a little confused. What function does the power supply you showed serve? Also, it looked unplugged so please reply so I can figure this out and build one. Thanks.
I think he used a 12V power supply merely to demonstrate the function of the heater for the purpose of getting temperature readings.
His Show Notes describe the use of PV panels (rated at 12 V) so any source will do such as a suitable lead-acid battery.
Thanx. Always good information.
hi and thank you!
Have you found this works more efficiently at all compared to the earlier ceramic PTC heating elements you tried?
they both work well (but i haven't done comparison testing) so i couldn't say for sure.
I'd love to know how long that sand holds enough heat to power the fan. As for the heating element, could it last the winter before it burns out?
hi. i haven't done specific time tests but the fan could potentially run for several hours. i know that the more powerful elements don't last long if used without water but my thought is that a very low power element (like the one i used) might last a while. if any water heating element would work it would be this one. (lowest power 'full size' one that you can buy). i'm hoping it will last a couple of years at least.
Really liked the video! I’m thinking the same way but what about using a small oil filled heater ? Embedded in the sand ! Then you would have a safer unit and better control!
interesting idea. i think about that one and might make a video on it. 🙂👍
@@desertsun02 Thank you for the reply. I can’t burn wood it bothers my breathing. I was thinking a small 30 gallon oil drum a cheap oil filled heater and cut a hole in the side for the controls. I can’t seem to find a suitable heater for my small 900 sq. Home. I have a propane wall unit but it in the living room. It’s either too hot or too cold. Does not work on the whole house. Stupid heater the temp controls also adjust in 4 degree increments. So a variable of 8 degrees? Please let me know more about your thoughts.
How are you today? Can I ask? Do you think there is any danger in doing what I was talking about ? I’m serious about trying this myself and don’t want to make a time bomb! What do you think? Please let me know, thank you.
if you were to use solar panels or LiFePO4 battery or just regular battery. Can you recommend a link to which ones would be best suited for it?
hi there. any 12v solar panel that is 100w or more would be the best. i've found that the cheaper solar panels are just as good as the more expensive ones (sometimes better) so i usually buy the ones that are low cost. i don't have much experience with the LiFePO4 batteries so i couldn't say which ones are the best. if you are using deep cycle batteries i would recommend the everstart brand. they are sold at walmart. those are the ones i use with my solar electric system. they usually last about 3 years (1000 charge cycles) which is a good solid amount of time.
So you are using a Peltier module to power the fan by using the hot sand to heat the module? I mean it’s cool but it doesn’t last that long and you will have to keep heating the sand with electricity or a fire 🔥 etc….
Just attach a timer to have the element come on at a certain time.
Can you please share step by step and plans ? Mainly when you say 'the heat of the sand power the fan' .... how ? How the heat becomes electricity ?
hi. the 'heat powered' stove fans actually sink heat from the sand up and into the body of the metal fan. there is a small device in the fans called a peltier chip. it turns the heat into electricity and that electricity is fed to the fans motor. all you have to do is set the fan in the sand.
How long it can last?
Ok heres my thing , how low can it go on voltage and amps to heat up to 200 Fahrenheit , to be eco friendly and how long to heat it up
Is a Mass Storage Heater now to be called a sand battery?
Needs more detail ... time to heat how long heating lasts .. cost effectiveness.. could it be commercialised? Or is there a commercial version already?
hi. i think it could definitely be commercialized. lots of research currently going on. maybe soon they will be selling similar devices 🌞
Не лучше ли нагреватель ставить снизу ?
hi. i don't think it would matter very much. probably work about the same
Why would you use sand when concrete stores 6x as much heat?
concrete suffers thermal damage if heated to much unlike sand...in this application its fairly low temp but Sand batteries in general are meant to run very hot,
Up to about 300 °C, the concrete undergoes normal thermal expansion. Above that temperature, shrinkage occurs due to water loss; however, the aggregate continues expanding, which causes internal stresses. Up to about 500 °C
Also the SHC of Sand means its heats up and cools down quicker making it easier to operate at larger scale...ie you'll be able to start drawing out energy at a useful temperature quicker, at the cost of the material holding less energy than other materials at the same temperature...
I can see some ways to improve this...or you should stop using metal cans for the sand, not an expert on low heat dissipating materials but, a lot of heat Is being dissipated by the can itself, or you can connect the heatsink from the fan to the metal can and get some of that heat to power the Peltier fan.
I love your videos. Can you please place the link for the 12 power supply? Thank you!
hi and thank you! here is a link to a similar one www.amazon.com/SHNITPWR-Switching-Converter-Transformer-Security/dp/B07TZMMZ66/ref=sr_1_12_sspa?crid=6IWSAOF52KGR&dib=eyJ2IjoiMSJ9.3NqJ0oW-fhYU0_zvO1_8ABK443w3-vwmVH66VxlnvZLYt5dTd6LuXK5Bz-zy5acTlS-XNg4cn4z5SrY1Gx_nJP497dxh5ewH-h0BnqBVyent1pnVL-3y_37bu7oizPvjJN6OVFw3H5FbQnEVUG0QqEN5yVNeJDD2_LAK1YEcQox7V_sRfi3XwlPd9DfsP6cXsJZ7tOKnkIOmc9p4Rzrr7HGXxv4wea5CObyo8nncd5o.osIcapz7jRazVg_IaT6V-Ag_qEwWhTwkm4IRrVPumMc&dib_tag=se&keywords=12v%2Bswitching%2Bpower%2Bsupply&qid=1708609619&sprefix=12v%2Bswitching%2Bpower%2Bsupply%2Caps%2C285&sr=8-12-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&th=1 i couldn't find the exact one i used (night be out of stock)
Thank you so much! what is the size, 60w?
thnx for the video, what kinda sand is this?
hi. it's what's called 'play sand'. often used in sandboxes. it's a sand that has been washed and filtered.
First, there's no electricity in sand, the transfer that makes the fan run is thermal. How hot it gets is not the criteria you should be measuring. It's entropy - if the sand is X degrees C and the room temp is Y degrees C and it has a specific cubic foot size then how long does it take for the sand to drop 1 degree C. You need to measure those parameters.
Nicrome wire is the appropriate heating element material
i have thought about using that but you gotta be really careful with that stuff.
Thank you! Still to much Watt for a total off grid. A sand stove takes about 14 hrs 150Watt, what do you think? 👍🌻❤️
I think a 1200-watt array and a 1410ah 12v battery bank would work great for one of these
@@donaldsteele6276 Thank you!
So how did the element hold up?
hi. so far so good. i guessed it might work because it's a very low wattage element. so lower temp than the high wattage ones.
To low power heating element?
Have you tried black sand yet ?
hi. i haven't tried black sand yet.
How about making rectangular sand bar 6 ft.long would that heat a room09/26/2024
sounds like an interesting idea. maybe run a pipe or pipes through the sand.
Im told those hot water heaters are not really ment to get that hot since in water they will never see over 212°
hi. the hotter more powerful ones would probably burn out but i'm having good luck with the lower power ones.
lets say 5kg of sand, 200C, 50C is too cool to really heat the room
thats Q=(5kg)×(0.00084J/kg°C)×(200°C−50°C)
.63 kJ of energy
To run a oil heater at full blast for 2 hours is like 2kWh,
7200 kJ
That's not going to heat a room for long man
Great
Add a solar panel and pop in your greenhouse voila
Very good idea , thanks for sharing YAH bless !
nice
Pour water in the sand you have a humidifier.
Why are folk so excited by the reinvention of the storage heater. I threw mine out in the 1970's when even off peak electricity became too expensive. Instead of sand they used moulded bricks to surround the heating element.
a lot of its to do with Solar... right now solar has an issue with long term power storage at a local level....the idea of a sand battery is you can dump a lot of otherwise unused energy into when the sun shines and then draw it back out to say heat your house when it doesn't potentially months after you stored it depending on the scale and level of insulation at play....
for example imagine if your entire house was built on a big sand battery...where the unused power from your solar panels is dumped into that thermal mass over the summer...then drawn back out again as heating over the winter... its no silver bullet or anything but a reasonable use case for the concept as a whole.
Oil parons dont like free
@@johntowers1213thanks for your explanation, what about the thermal bricks that are used as thermal storage, how do they compare? Is it just thermal limitations of the bricks compared with sand? Are the efficiency’s of both comparable ?
If only it could power that hoover 🤔
Everybody will appreciate this later.. but by then it would be too late. Because they wont be able to watch the videos.