30kg gas=30L of water

How do you move it from the Firebox to the indoor stand and then how do you move it inside

I'm about to turn my 40 gal on it's side and mount wheels on it like a semi tanker. With a tall removable flue at the outlet end the draft will pull the heat sideways much slower and heat the tank more efficiently than straight up.

sand is good in holding thermal energy for rewctions ,chemichal reaction ,try waste oil its better for your goal

Why would you use sand when concrete stores 6x as much heat?

What is that creeking sound your cycle is making? My nimbus 32 is doing that exact sound and I thought it may be the bearings?

What about heating with solar panel and heating element

Very good idea I was thinking on that same idea but I’m thinking of using used oil and a blower as a heat source keep up the good work your mate from the U.S.A.😬

I like your effort to safeguard your family. You are an intelligent person. I appreciate your wife's effort to believe what you do 🙏

Love the explanations I am very interested in this. Have you done any experiments using fins to radiate the heat out?

Hay alguna razon , para no poder construir una estufa en la planta baja Y a trabes de caños llevar el calor hacia planta alta ? queremos ayudarte , el esfuerzo que estan haciendo es de locos .nos podras informar sobre el tipo de construccion ,es de madera o mamposteria la casa ? algo muy liviano seria una estufa de pellet casera tipo S .para calentar toda la parte de arriba o una estufa de aceite ,esta todo en you tube y veo que tenes la capacidad de soldar, podrias construir cualquier modelo. Ese mismo contenedor de metal donde construiste la bateria de arena ,lo pones arriba de una sola hornalla de la cosina y calienta el hambiente muy bien , aumenta su eficiencia con un ventilador que reparta el calor, es solo una idea para gastar menos gas que un calefactor de gas industrial

Right off the bat you're losing a ton of heat through that hole on top. You should wind the exhaust back down around your stove (if you want to keep all the heat in the medium), then again up and out of the room with cooled-off gases. Make sure you take care of liquid residues in the pipe.

I wondered about using just a metal bucket of sand placed on top of a multi fuel stove. I wondered if it would store enough heat while the fire is on to keep my mountain apartment warm until the next evening. Another option was to use a bucket of paraffin wax as the state change from solid to liquid would hold a lot more energy. What put me of a little was the fire risk.

So why not make two and just swap them out as one gets lower temp? Or just use them together doubled? Take the same hour of firing and just double the firing and heat to the home?

Put another jacket around it and draw the flow from the bottom as a rocket stove less wasted heat out the chimney

insulating the vessel is important. but yes, using resistive heat, placed in and around the center of mass is optimal. that wasy the sand on the outter area does in fact insulate that heat. using resistive elements, the temp can quite easily get over 600c

Well done, keep up backyard research.

Insulated steel chimneys can easily be fitted as wall mount to any buildings. Besides, having an outdoor garden boiler stove and insulated waterborne circulation to indoors distribution is also viable if there´s a garden, that is. Opens for wood, coal, turf, oil, waste oils. All easily automated for an even fire run, or shock doctrined by intense fire and thermal batteried by as ex sand. Water circulation pumps can be bought cheap these days and they draw very little juice unless there´s big elevations..

it goes froo hahaha

I think if you can keep it on the Sack Truck (Hand Truck) for heating and leave it on that indoors would make this a one person job. You take it outside heating up on the Sack Truck, then pul it back off the heat and roll it right indoors into position would be a game changer. Simple, effective and with one person efficient. Overall that would be safer too.

Add a 4 ft chimney pipe to help have a cleaner burn.

68 quid😮 to fill a propane tank... Did the conversion that's like 86 dollars US... Just filled mine a couple of months ago for 15 dollars

Don't apologise my man, do recommend it. That damn government of yours wants everyone on all electric, with them controlling it too. What you've demonstrated is an excellent way of keeping warm, alive and not needing them as much. Well done.

Waste oil drips are far better. Just to let you know there is no law in the UK about the wood you burn OUTSIDE your home. All wood can be burned.

Its literally forcing us Brits to be ingenius. I think you should do it differently. Run a copper pipe coiled inside that but fill it with something like water or waste oil and have that pipe go into your home and into other sand batteries ans then you don't have to move. Yours isore efficient simply because outdoors the law cant stop you burning any wood you like, but indoors they will fine you if your chimney has wet wood or treated/painted wood.

Love it. Wondering how you get it up the stairs? I've used trolleys with heavy stuff but just a couple of steps or so. I'm imagining a type of slide -like a builders' shute split down the middle made of metal dustbin sections or similar -with a pulley system to take the weight off -weld an eye bolt to the battery for a chain to pass through. Maybe one of those systems for lifting engines etc. The block/pulley would need to be bolted very securely to a joist or something. Just some ideas. Anyway, thanks for the very informative short film. Great to see slightly mad idea making sense :)

Really enjoyed your videos! Amazing what can be done. I love the humour too -Hand grenade hahaha! I'm sure your wife loves you really ;) Are those mushrooms life size and you are are pixies?

Hi!! You can set it inside the house and make a chimney so you can use both heat wood and radiation.

I thought about this kind of solution and whether it would work. Sand in the ground can retain heat for months at a time If you could route the exhaust through the tank, even have 3 or 4 smaller flues through the tank would provide more surface area for heat transfer for both heating and releasing For anyone with a property that cannot have or cannot afford a stove install this could be a very viable solution Kudos for the experimentation!

Boiler system too pipes. A heat duct run through a window with heater out side .I have a generators that run on wood that can heat 6 homes in Canada. Wood gas one wire bit noisy.

I’ve tried this and it doesn’t work it’s a scam

أسعدك الله في الدنيا والآخرة...❤

I’m working on a similar project and sand is good to 3000 degrees F. A rocket stove at the barrel will reach around 2800. For your setup, I’d recommend using a small fan to basically build a forge. That will speed up the charging time and use less fuel.

I wonder if you could use an old fire log burner and gut it out and fill it with sand.

There is a lot of heat escaping from the chimney.

Stick pice of black tape on it to take your reading do this on any reflective surfaces

Is not working, well it will work but you thinking to small. I have one container of 5 kubikk i will use. Obviously need place it outside, charge it with heat from wood and use pipes running inside in spirals to take out hot air and water

Wonder if you’ve thought about using propane instead of wood to heat sand battery, seems like it would be less bothersome. Just a thought.

Why you call this "sand battery"? This is called mass heating. This is not free heat at all. You are using energy source to heat up the sand. The sand just stores and releasing the energy what you are put in the system to heat up. I see in the comments... there are a lot of people with ZERO knowledge in physics.

Good on ya Lee. Seems like a bit of graft but hey , hats off to you for keeping your family cosy and warm.

Very awesome design. i certainly learned something new. Subbed.

Thermal mass or Heat battery... JUST THE FACTS All Materials have whats called K value or thermal mass value.. Kind of or basically the inverse of R value in insulation ratings. This K value is the amount of heat that can be stored in any Material. BY the way the unit of measurement is based off of water having the thermal mass of 1. This is the standard. Numerous charts can be looked up, and referenced for verification. Water has a thermal mass of 1 as mentioned HOWEVER rock only has .2 or one fifth of the thermal storage potential of water by Weight. Rock is more dense Pea gravel has 95 pounds in a cubic foot. BUT water only weighs 63 pounds per cubic foot. This weight advantage of Rock VS the HIGHER thermal storage capacity of water Results in WATER stores 3.26 times more heat per cubic foot than pea gravel. Even HEAVY dense stone solid Marble is only 150 pounds a cubic foot and STILL does not beat water for BTU storage. It takes about 1340 BTU to heat one gallon of water from 40 degrees F to 200 F That means a 55 gallon drum of water heated to 200 would let off about 77,000 BTU's of heat before it went back down to 40 F. To get the same heat storage you would need to heat Four 55 drums full of stone to store the same amount of heat

If you have a fireplace you could burn it in the room out from the fire place and pipe it up to vent out the chimney so you get the heat from the fire and the battery without losing heat up the chimney. You could also put metal mesh inside the pipe area to get extra heat from the flame that goes up the pipe in the center of your battery.

Nice idea. Try to convert your sand battery to 2 or 3 shorter sand batteries that can be fixed in top of each other. It will be easier to transport from your apartment to your yard

LPG is a lot more expensive than piped gas. Be careful using un flued appliances they can use the oxygen in a room and kill you with Co poising. It will also create loads of condensation which can cause problems with the structure of the house. Definitely do not use in a bathroom the air will soon be depleted of oxygen due to higher humidity and it will kill you. Did you use silica sand? Use a series of heat sand batteries for more efficiency. You could improve your burn rate by modifying your air intake somewhat. Thanks for the video keep warm but be careful.

You might be able to get a small propane tank, clean it out, and fill it with sand. Then build a stand and set it above the big wood burner and capture the heat

You can set a heat activated fan on top of that and it will disperse the heat better

Put a metal plate on top and put a wood stove fan on top of that..

Very clever, but there is no way myself or my wife are going to haul this big heavy thing around. What do you do if it is pouring rain or snow outside? Any of those unvented gas or heaters are dangerous. They may burn clean without fumes, but they still deplete the oxygen in the room and give off water vapor which condenses on your windows or walls.

So creative!