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Heating jar with candle. DIY heater made from flower pots and one candle. DIY candle heater


Suggested below heater made from candles and pots for flowers - the thing is extremely elementary in its principle of operation, easy to make and cheap.If you need to spot heat a cold room in a private house or warm up a person working at a desk, the handicraft of the American Doyle Doss, who offered the worldheater made of ceramic pots and candles called "Heat Trap".


Outwardly so heater made from pots and candles Believe it or not, it looks like an upside-down flower pot over a candle. However, this pot is not simple, but composite, made from three pots different diameters, nested inside each other and placed on a long metal bolt through the water holes.

The bolt itself is threaded with several washers and nuts. The height of such a “candlestick” is from 23 centimeters, and the width is from 18 cm.The principle of operation is to “trap” the heat from the candle.


The fact is that a burning candle produces a little light, and most of its energy goes away with the hot stream of combustion products.The candle heater created by Doss is a kind of labyrinth-cap, which, being above the flame, accumulates heat.The central rod heats up, heats the ceramics, and then the heat is slowly transferred to the air by the entire surface of this unique ceramic radiator.

By the way, instead of a candle, you can use it as a heater. an ordinary lamp incandescent - in this case, instead of a candle, a socket with a lamp is installed and connected to the network.


The American's trick is that his heater made of ceramic pots and candles is quite simple. Journalists from “Today” tried to recreate the invention. We bought the necessary components at a construction market for $3. It took about an hour to make.The tests were carried out at a temperature of +5 degrees in a small room. Real heat began to emanate from the ceramic radiator only after 3-4 hours, and the room warmed up only after 10-12 hours (the door was closed).


It’s clear that it took a long time, it’s clear that I had to tinker, it’s clear that it’s easier to turn on an electric heater, and it will warm up the room much faster... But if both gas and electricity go out, it’s just such a “device” that will be able to illuminate, and slowly but surely warm up the room. Moreover, making a heater from a candle is as easy as shelling pears, and the manufacturing process does not take a lot of time and money.

Some of them even manage to cook something to eat...))

Imagine a heat source that warms but doesn't waste your money and never breaks down. It sounds like science fiction, but Californian inventor Doyle Doss made his dreams come true and invented a heater that generates energy from a candle. Anyone can repeat the American's discovery.

At first glance, the device may seem like a strange candlestick made from an inverted clay pot, but do not rush to judge by appearance: the whole essence is hidden inside.

The heating mechanism is made according to the matryoshka principle: ceramic pots different sizes placed inside each other and fastened with a metal rod.

Stringed on an iron base a large number of nuts with washers. Unique hats help to collect and release heat from the candle. Typically, the energy from a small flame goes up and has virtually no effect on the surrounding temperature. A cap over the fire is needed to transfer energy into the air, using the entire area of ​​the ceramic pot.

During work metal base gets very hot. To avoid burns, do not touch the element!

Burnt clay not only perfectly collects heat, but also retains soot, preventing it from reaching the ceiling. The simple design is approximately 23 cm in height and 18 cm in diameter. Operating time of one candle – about 20 o'clock.

Application area

Candle heater suitable for emergency situations. For example, when there is a power outage or when at least one room needs to be heated in a cold building. If you install such heating elements in each room, this will raise the overall temperature in the house by several degrees. A nice bonus for saving boiler power.

But with all the advantages, this device unable to replace a full-fledged system heating.

Some Internet users have already tried the candle heater as a kitchen stove, and if their experience is to be believed, the device successfully completed its mission. The appliance has enough power to cook scrambled eggs and heat up soup.

When using the device for the first time, you should wait until the remaining moisture evaporates from the clay. This takes approximately 4 hours.

Attention! Do not leave the heater unattended. We are talking about at least a small, but still open fire.

When the device is not in use, it is better to wrap it plastic film , otherwise the clay will collect moisture.

Even if you are sure that your heating is reliable and you don’t need additional funds, you should pay attention to a candle heater, if only because:

  • For its production, available and cheap materials.
  • The device can also work outdoors.
  • A non-standard device can be imagined as part of a fashionable interior.
  • The design is simple, which allows you to make a heater at home

Step-by-step instruction

Materials. To replicate the work of the Californian inventor you will need:

  1. 3 clay pots of different diameters, according to the principle of reduction. For example: 5, 10 and 15 cm.
  2. Metal base with thread about 11 cm.
  3. Nuts, about 8 pieces, and washers, 20 pieces are enough.

Manufacturing. After purchase necessary materials, you can begin the main work;

  1. Using a drill, make holes in the pots based on the dimensions of the rod.
  2. At the very large pot insert the base and secure from the outside with a nut.
  3. Place several washers on the metal inside the pot.
  4. Install the second largest pot and secure it with washers and nuts.
  5. Do the same with the third pot.
  6. The upper knob is installed above the candle. The fire should be exactly under the rod.

Base. If you are not satisfied with the option of placing the heater on a couple of bricks, then you can make a more aesthetic base. This will help you:

  1. Three flat corners made of metal, these are used to strengthen window frames. One of the edges of the corner should be identical to the radius of the candlestick, and the other to the height of the candle.
  2. A harness or cord of excellent strength.
  3. Welding.
  4. Drill.

You need to work according to this scheme;

  1. Weld metal corners at 120° relative to each other. Small edges should face inward, while larger edges should point upward.
  2. Make small holes on top of the long ends.
  3. Insert the wire into these slots to form a triangle. The heating element is placed on this platform.

That's all, all that remains is to choose the right candle and enjoy the warmth and comfort.

In the USA, candle heaters have already gained fame as economical and practical sources of heat. The devices are even compared to mythical perpetual motion machines for their economical operation. Maybe the invention will take root in Russia. Then, in the near future, every home will have a candle source of heat.

A fireplace made from pots heats the room with one candle.

The candle flame shines quite pleasantly, but trying to warm up with it seems crazy. Meanwhile, just as a light source, a candle is an extremely wasteful device. But as a room heater it can be useful. Under a number of conditions.


Californian inventor Doyle Doss and his company DOSS Products offer original system Kandle Heeter, that is, “Candle Heater”.
This strange-looking candlestick, its creator claims, can be indispensable during a power outage. Its height is about 23 and its width is about 18 centimeters.
And from it appearance The inverted pot above the candle attracts attention. The main highlight of the system is hidden in this pot (and in a “past life” it was a flower pot).
This pot is not simple, but composite. It is made of three pots of different diameters, nested one inside the other and connected by a long metal bolt, on which a whole bunch of washers and nuts are strung (fortunately, the pots usually already have holes in the bottom).

Doss sells Kandle Heeter for $25 each.
This intricate combination of ceramic and steel is called Quad-Core, and is designed to trap heat from a candle. But why?
An ordinary candle, burning in a room, produces, as it seems, very little heat. But the point here is that its hot “exhaust” simply goes up and quickly evaporates with the ventilation.
Meanwhile, the energy reserve in the candle is not so small. Moreover, with the hot flow of combustion products, most of its energy content leaves, and only a smaller part is converted into light.
The labyrinth cap above the flame collects energy and carefully stores it, heating up quite strongly (the central rod is especially hot). And then this heat is slowly transferred to the air by the entire surface of the ceramic radiator.
The pots also help trap soot from the fire, which helps keep the ceiling clean...

The inventor emphasizes that one such device will in no way save you in the winter when the heating and electricity are turned off, but, on the other hand, it is better than nothing at all.

In addition, although this simple design is designed primarily for emergency situations(and not only at home, but also outside), a mini-candle radiator can slightly reduce the cost of heating a room, adding a little warmth to an occupied room, while the entire house is “adjusted” by thermostats for more low temperature. Here, however, you still need to calculate the cost of one joule per candle.

The heater is also equipped with a top-mounted stand that can hold a pot of soup.

Before a fresh Kandle Heeter can properly heat a room, you need to wait for the residual moisture to evaporate from the ceramic. This can take 3-4 hours, Mr. Doss notes.

But then the owner of this thing can fully enjoy soft warmth, produced by the heater for a long time. It is necessary to store the unused device in a plastic bag so that it does not absorb moisture from the air.

Heater operation diagram. The flame heats the rod (1), hot gases pass from cavity to cavity (2), each layer of ceramic emits infrared rays, heating next layer(3), the outer pot (4) ultimately heats the air in the room (5) (illustration and photo from heatstick.com).

Doss writes that a 4.25-ounce wax candle contains approximately 1 thousand BTUs of energy. In conventional terms, this is approximately 120 grams and 1.1 megajoules.

If we consider that such a candle burns for 20 hours or a little more, it turns out that its energy production is 55 kilojoules per hour, which corresponds to a power of 15.3 watts.

True, according to some data, the total “useful output” wax candle this size will still be higher. Closer to 3 megajoules. Which will give an average power of approximately 42 watts. And if we carefully “look” at a paraffin candle, then, perhaps, we will find even more potential heat in it.

However, the exact calorific value numbers are not so important. It is clear that such a candlestick cannot compete in power with household electric convectors and oil radiators at 0.5-2 kilowatts. As long as there is current in the outlet.

On the other hand, even if there is current, you are unlikely to burn a kilowatt heater all day long if you do not want to go broke on electricity bills. And Kandle Heeter, as already mentioned, lasts more than 20 hours on one candle. The only thing important condition: It must not be left unattended. Still an open flame.

The American innovator believes that such heaters should appeal not only to people sitting at home, but also to those who rarely go there, preferring to travel away from the hustle and bustle of civilization. Kandle Heeter should become a simple and cheap alternative to primus stoves and other kerosene stoves. And someday it can save the life of a person who is caught, say, in a car in a snow trap or a blizzard.

Lastly, this tiny firefly is just cute. “Kandle Heeter should remind us all that once upon a time we (humans) sat in caves at night around a fire and told each other stories,” says the inventor.

The candle flame shines quite nicely, but trying to warm up with it seems crazy. Meanwhile, just as a light source, a candle is an extremely wasteful device. But as a room heater it can be useful. Under a number of conditions.

Californian inventor Doyle Doss and his company DOSS Products offer the original Kandle Heeter system, that is, the “Candle Heater”.

IN in this case an intricate candlestick is not a tribute to design, but a thoughtful thermal device

This strange-looking candlestick, its creator claims, can be indispensable during a power outage. Its height is about 23, and its width is about 18 centimeters.

And from its appearance, the inverted pot above the candle attracts attention. The main highlight of the system is hidden in this pot (and in a “past life” it was a flower pot).

This pot is not simple, but composite. It is made of three pots of different diameters, nested one inside the other and connected by a long metal bolt, on which a whole bunch of washers and nuts are strung (fortunately, the pots usually already have holes in the bottom).

This intricate combination of ceramic and steel is called Quad-Core, and is designed to trap heat from a candle. But why?

An ordinary candle, burning in a room, produces, as it seems, very little heat. But the point here is that its hot “exhaust” simply goes up and quickly evaporates with the ventilation.

Meanwhile, the energy reserve in a candle is not so small. Moreover, with the hot flow of combustion products, most of its energy content leaves, and only a smaller part is converted into light.

The labyrinth cap above the flame collects energy and carefully stores it, heating up quite strongly (the central rod is especially hot). And then this heat is slowly transferred to the air by the entire surface of the ceramic radiator.

Heater operation diagram. The flame heats the rod (1), hot gases pass from cavity to cavity (2), each layer of ceramic emits infrared rays, heating the next layer (3), the outer pot (4) ultimately heats the air in the room (5)

The pots also help trap soot from the fire, which helps keep the ceiling clean.

The inventor emphasizes that one such device will in no way save you in the winter when the heating and electricity are turned off, but, on the other hand, it is better than nothing at all.

In addition, although this simple design is designed primarily for emergency situations (not only at home, but also outside), a mini-candle radiator can slightly reduce the cost of heating a room by adding a little warmth to a occupied room while how the entire house is “adjusted” by thermostats to a lower temperature. Here, however, you still need to calculate the cost of one joule per candle.

The heater is also equipped with a top-mounted stand that can hold a pot of soup.

Before a fresh Kandle Heeter can properly heat a room, you need to wait for the residual moisture to evaporate from the ceramic. This can take 3-4 hours, Mr. Doss notes.

But then the owner of this thing can fully enjoy the soft heat generated by the heater for a long time. It is necessary to store the unused device in a plastic bag so that it does not absorb moisture from the air.

Doss writes that a 4.25-ounce wax candle contains approximately 1 thousand BTUs of energy. In conventional terms, this is approximately 120 grams and 1.1 megajoules.

If we consider that such a candle burns for 20 hours or a little more, it turns out that its energy production is 55 kilojoules per hour, which corresponds to a power of 15.3 watts.

True, according to some data, the total “useful yield” of a wax candle of this size will still be higher. Closer to 3 megajoules. Which will give an average power of approximately 42 watts. And if we carefully “look” at a paraffin candle, then, perhaps, we will find even more potential heat in it.

However, the exact calorific value numbers are not so important. It is clear that such a candlestick cannot compete in power with household electric convectors and oil radiators of 0.5-2 kilowatts. As long as there is current in the outlet.

A regular candle, without a glass or metal cup, melts too quickly in the Kandle Heeter

On the other hand, even if there is current, you are unlikely to burn a kilowatt heater all day long if you do not want to go broke on electricity bills. And Kandle Heeter, as already mentioned, lasts more than 20 hours on one candle. The only important condition: it cannot be left unattended. Still an open flame.

The American innovator believes that such heaters should appeal not only to people sitting at home, but also to those who rarely go there, preferring to travel away from the hustle and bustle of civilization. Kandle Heeter should become a simple and cheap alternative to primus stoves and other kerosene stoves. And someday it can save the life of a person who is caught, say, in a car in a snow trap or a blizzard.

Lastly, this tiny firefly is just cute. “Kandle Heeter should remind us all that once upon a time we (humans) sat in caves at night around a fire and told each other stories,” says the inventor.

Is there an eternal heating device that will never break? How can you utilize the heat of an open flame in a living room? How to assemble a free room heater lamp with your own hands? Read about all this in this article.

Simple natural materials in one form or another continue their “life and work” as components modern compositions. Thus, ordinary clay has gone from being a free and publicly available raw material for the construction of the first houses to a nano-component of the composition of insulating paint (liquid ceramic insulation). In its raw form, they coated walls with it for insulation, then they began to mold it and burn it - they got dishes and bricks. With the development of steelmaking, they learned to expand clay - this is how expanded clay and a whole section of science appeared - “The use of expanded ceramic materials" In the end, it was formed into balls with a diameter of 0.02 mm with a technical vacuum inside. And clay was in demand everywhere due to its main property: when fired (ceramics), it effectively accumulates heat. This once again proves that everything that a person needs for life has already been invented by nature.

Is it possible to distribute heat from fire

Another property of ceramics, derived from heat capacity, is the ability to distribute heat evenly throughout the entire volume (except for the heating point). In other words, if we take something ceramic (like a brick) and place it on something hot (like gas burner), then the following will happen:

  • the brick will begin to accumulate (recycle) the heat of the burner flame;
  • the temperature will be evenly distributed throughout the entire volume of the brick and will reach its edges;
  • heat exchange with the surrounding air will occur on the planes of the brick;
  • as a result, the heat exchange area will increase from the area of ​​the flame to the area of ​​all planes of the brick;
  • in this case, the temperature will decrease inversely proportional to the surface area (than larger area, the lower the temperature).

The quick-witted reader, of course, understood that the operating principle of the Russian stove was described above. Our task is to create an equally effective device, but based on a candle.

How does an “eternal” heater work?

When a regular candle burns, the following happens:

  • air heated by combustion rises to the ceiling;
  • under the ceiling it mixes with the topmost layer.

Due to the large temperature difference (76 degrees), the surrounding air does not have time to mix with the exhaust combustion gases, and they intensively rise to the ceiling. A column of hot air is formed, which dissipates at the top. We will utilize this heat using a “trap” made of ceramic domes.

What can a heating device be made from?

So, to build a “miracle micro-stove” we will need:

  • flame
  • fired clay (ceramics)
  • metal

The scope of ceramics is limited only by the imagination of the engineer. In this case, we are only interested in publicly available cheap materials, in particular, dishes. It’s not for nothing that in the old days they used clay pots in the oven - they retain heat for a long time. Assortment of ceramic products household use is huge these days, but we'll stick to the usual ones flower pots. Unprepossessing in appearance, they will help us solve the problem of auxiliary heating.

The second component of the heater is the heat source. The first thing that comes to mind for indoor use is a regular candle. Of course, there are the most various types gas and kerosene burners, but cheapness and availability come first for us. In addition, the candle has no expiration date and can be stored in the cold.

The third component is a record holder in thermal conductivity and an outsider in heat capacity - metal. Its property of quickly heating up and giving off heat (low heat capacity) will play into our hands when creating a heat lamp.

Assembling a heat lamp with your own hands

What you will need:

  1. Ceramic (flower) trapezoidal pots with an outer bottom diameter of 50, 100 and 150 mm, 1 pc. In this case, the smaller pot should be approximately 25 mm lower than the larger one.
  2. Threaded pin with a diameter of 6-12 mm. It should go through the holes of each pot. If necessary, drill holes to the required diameter using a tile drill.
  3. Washers for a hairpin with an outer diameter equal to the inner diameter of the bottom of the smallest pot - 20 pcs. Nuts 7-8 pcs.
  4. Free-form frame, hanger or stand meeting the requirements described below technical requirements(conditions).
  5. If desired, use fireplace sealant or non-flammable (paronite) gaskets.

Operating procedure

1. Install the pin into the hole largest pot and screw the nut on the outside.

2. Place several washers on the pin inside the pot and secure with nuts if necessary.

3. Place the middle pot on the pin.

Attention! The outer edges of smaller pots should be inside the dome of larger ones at a depth of 20-25 mm.

4. Fix the middle pot with washers and nuts.

5. We expose and fix the small pot.

6. The edges of all three domes should go inward in steps of 20-25 mm. We adjust the planting depth by adding washers and nuts.

7. If the distance from one bottom to the other is noticeably large, fill it with washers spaced apart - this will give greater thermal conductivity to the rod.

8. We install the structure above the candle so that the pin rod is located strictly above the flame at a height of 30-50 mm.

9. Further adjustment is made experimentally based on observations.

Use of gaskets and sealant. While praising ceramics, we tactfully avoided its most inconvenient drawback - fragility (causticity). Even solid bricks crumble when they fall on concrete, let alone flower pots. When assembling the lamp, you should tighten the nuts very carefully - if you tighten it a little, the wall will burst. There is also a risk of accidental splitting during operation or during transportation. The hard metal of the pin crushes the ceramic and can crack it. To soften their contact, use sealant or non-flammable gaskets.

What is the benefit of a “pot” heater?

At first glance, the design is extremely clear, but does not inspire confidence. We should immediately make a reservation - do not rush to cut out steam heating radiators - our lamp will be an “apprentice”, but not a “master”. The use of such devices in each room will reduce the overall boiler supply temperature by several degrees completely free of charge - and this is already the result!

Let's conduct a primitive thermotechnical calculation based on publicly available data and logic:

  1. A wax candle weighing 120 grams (diameter 30 mm) contains about 3 MJ of energy.
  2. Approximate time burning of such a candle is 20 hours.
  3. During this time, it releases approximately 140 kJ of energy, which is about 42.5 W.
  4. Paraffin candles provide a greater effect of releasing thermal energy.

By choosing the most efficient candle, we can achieve 50-55 W of thermal energy at the output, and this is already 10% of the power of an electric heater of 500 W.

Attention! Fire hazard. A heating element- open flame. The lamp must not be left unattended.

Application area

A simple design based on cheap materials will last a long time if handled with care. The heater does not require any conditions for storage, service life, maintenance or replacement of spare parts. Simple, like everything ingenious, it will become a support during forest overnight stays or during a power outage, as well as in extreme conditions.

  1. In places where there is no electricity: tents, dugouts, shelters, cars caught in a snowstorm.
  2. In places where there is electricity: small but pleasant savings on heating costs.
  3. If you assemble a well-thought-out frame, you can hang a small container (pot, mug) above the candle and heat water.

This is such a simple and reliable assistant. He will not only become warm place in your interior, but also as an interesting decorative decoration.

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