Effective DIY garage oven
In our country, heating of private garages is not provided, so some motorists heat their "iron horses" in the cold season with electricity, which is very expensive. For many, a salvation from the cold is a garage oven, which today can be relatively easily purchased on the climate technology market. You can go a more complicated, but cost-effective way: do heater yourself. For its manufacture, you can use improvised materials and a minimum set of tools, which is in the arsenal of almost any motorist. In this publication, we will talk about simple and effective homemade garage ovens, compare their advantages and disadvantages.
Features of heating car boxes
If there are people in the garage, then the temperature in such a room should not drop below + 18 ° C.
Heating walls, floors, roofs will require a huge amount of thermal energy. That is why it is advisable to carry out local heating of the working area by convection flows in the car storage box, spreading from the body of the heating device. If the box does not provide for central communal heating, then the owner has no choice but to make a stove in the garage on his own. Such a device will create natural convection and heat the working area with thermal IR radiation.
Wood burning garage stove
The easiest to manufacture are wood-burning stoves, among which can be distinguished traditional potbelly stoves and their more advanced modifications - long-burning stoves.
A self-made wood stove in a garage must meet the following requirements:
- Have a small size.
- Have good heat dissipation.
- Efficiently burn any wood and wood products.
- Be safe to operate.
The aesthetics of a garage stove is irrelevant. That is why the shape of the device is determined by the material available for manufacturing: if there is a sheet of metal, the furnace will be rectangular; a cylinder or a piece of pipe is used - round. Stand apart brick ovens, the shape and dimensions of which are determined by the brickwork scheme (order).
Potbelly stove: simplicity and efficiency
Any car enthusiast who owns a grinder and a welding machine can, without special financial costs and relatively quickly, make a simple potbelly stove in a garage with his own hands: drawings of various modifications and orientations are presented in huge numbers in specialized literature and the Internet.
The classic design of the stove does not have a grate and ash pan.
This option is easier to manufacture, but less effective and does not meet fire safety rules. When cleaning the firebox, a spark from coals can ignite fuel and lubricants stored indoors.
For a garage, it is better to use a potbelly stove with an ash box.
To increase efficiency, domestic craftsmen equip their modified potbelly stoves with horizontal partitions. This design makes the incandescent combustion products make two turns, and not "fly into the pipe".
Advantages:
- fast heating;
- ease of manufacture;
- versatility in terms of fuel consumption.
Disadvantages:
- short service life due to the rapid burning of the material;
- rapid cooling of the case.
Long burning oven
For most car enthusiasts, a long-burning garage oven is a godsend. This design allows the device to work for a long time on one tab.
The principle of operation is as follows:
- The fuel occupies the full volume of the combustion chamber.
- Combustion spreads from the top with oxygen deficiency, which is very limitedly supplied from the bottom of the installation. This method allows the wood to smolder, emitting flammable pyrolysis gases that burn in the upper part of the combustion chamber.
With a sufficient volume of the combustion chamber (200 l), the stove can operate on one tab from 8 to 24 hours. One of the designs of a long-burning pyrolysis oven made by hand is shown in the photo.
The device is made of a small 24 cylinder set in a horizontal plane. This element is the fuel chamber in which the thermal effect on wood occurs. The front part has a fuel chamber door; bottom - ash pan.
In the upper part of the tank there is a heat exchanger made of five thick-walled metal pipes. A combustion chamber for pyrolysis gases with a chimney is located above the heat exchanger.
The approximate power of the furnace does not exceed 5 kW. However, the tests showed the following results: brick garage, 30 m22 heats up to + 20 ° С in an hour. On one tab, the device worked for about 2.5 hours.
Heating stoves for liquid fuel
Liquid fuel stoves for heating a garage are very popular with domestic car owners. The main types of fuel for such heaters are diesel fuel and mining, which are in the arsenal of most garage owners.
Advantages of liquid fuel heaters:
- high efficiency with small overall dimensions;
- the ability to operate on almost any liquid fuel, provided that it does not contain moisture.
Disadvantages:
- fire hazard;
- high fuel consumption;
- high concentration of combustion products in the air.
Consider the design features of test heaters and homemade diesel heaters.
Development heaters
It is very simple to assemble an effective, working-out furnace in the garage with your own hands, because it consists of only three elements:
- The lower tank, which serves as a primary combustion chamber.
- The upper tank, in which the combustion of combustible gases formed when the fuel is heated occurs.
- Afterburner - a perforated tube connecting the lower tank and the upper tank. Air enters this element through the holes, which mixes with combustible gases and enhances their combustion.
The drawing shows in detail all the elements of the furnace and the order of their assembly.
Diesel ovens
Diesel stoves for a garage can be purchased or made by hand. Ready-made models will cost the car owner more, but will significantly save time for the manufacture of the unit. For self-creation of such a heater, a dropper oven is ideal, the drawing of which is presented below.
The dropper design consists of the following elements:
- a bowl installed inside a steel pipe;
- a tube for metering fuel supply is installed above the bowl;
- an air tube with holes (afterburner) is mounted in the center of the pipe.
The principle of operation of such a furnace is simple: the fuel drops into a heated bowl in drops, where it instantly burns, releasing heat energy and some of the pyrolysis gas, which is mixed with air and burned in the afterburner.Fuel supply is carried out by gravity or by means of a valve installed in the break of the fuel line outside the unit body.
Design advantages:
- relative operational safety;
- high efficiency.
Disadvantages:
- the need to equip a chimney and provide traction through high-quality supply ventilation;
- the smell of combustion products while the oven is in operation.
You should know that the "dropper" works very successfully, both on diesel fuel and on any types of engine oil and working off.
Design features of brick ovens
Despite the simplicity and abundance of design solutions for garage heaters running on liquid fuel and wood waste, brick stoves have earned respect from car owners due to the mass of advantages:
- Relative fire safety.
- Long-term maintenance of the temperature in the room due to the high heat capacity of the brick.
- Practicality. Heating equipment can be easily equipped with a hob.
- Minimum operating costs.
The disadvantages are:
- the complexity of the masonry;
- prolonged heating;
- high cost of refractory bricks.
It will not be difficult for a person who has encountered such work to make a brick oven for a garage with his own hands: drawings, orders and descriptions of the stages of construction of a structure can be easily found on the Internet.
Construction stages:
- Preparing a place for the construction. To heat a standard garage, a furnace is enough, with dimensions of 600x600 mm. The best place is at the back wall of the garage, where the structure will not interfere with vehicle entry.
- Preparing the drawing.
- We purchase materials and prepare the necessary tools.
- Preparing the foundation. If the weight of the masonry does not exceed 500 kg, then you can do without arranging an additional base.
- We erect the structure using the selected masonry scheme.
An example of ordering is shown below.
Laying a brick oven requires experience and specific skills. That is why we recommend contacting professionals for the construction and commissioning of such a structure.
Gas heaters
Gas ovens are often used to heat a garage in winter.
On sale, gas heaters are presented in three types of devices:
- IR heater with ceramic burner. Such devices do not require the arrangement of a combustion product removal system.
- Convection-type installations with a closed combustion chamber. Requires a chimney.
- Heat gun. Ideal for short-term space heating.
Today, in the modern market of climatic technology, catalytic models of gas heaters are widely represented, which work on the principle of gas oxidation with oxygen. The only drawbacks are the high cost of equipment and the need to equip a fire alarm system.
You can make a gas oven for a garage with your own hands, since there are a huge number of schemes and instructions for creating it yourself. It should be understood that any mistake in the manufacture of such a unit can lead to a gas explosion, fire, damage to property and loss of life, so it is better not to risk it and purchase a finished product from a well-known manufacturer.