Heaters infrared gas for garage. How to choose an infrared heater for the garage. Advantages of infrared heaters

Choosing the best heater for the garage, the owner vehicle guided by two main criteria:

1. The amount that he can invest in organizing heating;
2. The period during which it is necessary to heat the room.

But before talking about the criteria, consider the types of heating systems.

Gas is a cheap fuel, but installing your own gas garage heater is very serious mistake. All work must be carried out only under the supervision of a specialist. You should also not use homemade gas heaters because of the risk of explosion. A portable gas heater can completely remove the issue of space heating. Such heaters include honeycomb screens or convectors.

Advantages gas heater:

• rapid heating of the room;
• no need for electricity;
• mobility, ease of transportation;
• economy.

Ceramic heaters

Among gas heaters, ceramic heaters should be singled out separately.
In addition to low cost, small dimensions and economical fuel consumption, a huge advantage of these models is increased safety.

The built-in flame sensor and the closed combustion chamber ensure that the gas supply is turned off in the absence of a flame. The case of ceramic heaters is made of stainless steel, they are not afraid of the external environment and serve for a long time.

Portable gas heaters for the garage are powered by cylinders that are refueled at auto-gas stations.

Gas ceramic heaters are also suitable for tents. What other ways are there to warm yourself in a cold forest, read on.

Infrared heaters

Infrared garage heaters are especially popular now. As a rule, they are fixed on the ceiling. The heater emits rays, they heat the floor, and warm air rises from there.

It is worth deciding what exactly you need warming in the garage. Depending on this, there are three options for placing infrared heaters, since they cannot heat the entire garage space evenly.

1. Maintaining the norm of +5 degrees, which is necessary to keep the car in good condition. For such cases, you need to install a heater at the rate of 50 W per 1 sq. m. In addition, it is better to install a heater under the hood of a car, so that in case severe frosts the car itself warmed up, not the air in the garage.
2. If the garage is used as a workshop, then it is worth placing another heater above the workplace (table, tool area) and turn it on if necessary.
3. If you need to heat the entire garage to comfortable temperature+20 degrees, then the installation of the heater does not differ from the installation of heating in domestic premises. For 1 m2 of area, 100 W of heater power is calculated.

The main advantages of IR heaters:

• extensive heating area;
• high efficiency;
• reliability;
• built-in temperature sensors;
• durability;
• no combustion products.

Diesel heaters

Among diesel heaters diesel guns of indirect heating are especially popular.

During their operation, the products of combustion are removed to a special heat exchanger, so these heaters are completely safe, and the heating takes place with clean air.

It is worth considering, however, that when using diesel guns, a constant influx is needed. fresh air because burning fuel reduces the amount of oxygen in the room.

Diesel garage heaters are equipped with a system responsible for shutting down in case of overheating, as well as a flame control system, sometimes a thermostat. Their mobility is one of the biggest pluses of this type of heater.

Homemade garage heater

The simplest wood-burning stove - great alternative all considered heaters. Homemade heaters can be just as effective as factory-made ones, but will cost several times cheaper.

The wood burning stove is easy to use, ergonomic and economical. The most common design homemade stoves remains stove-potbelly stove. When installing it, you should remember a few simple rules:

• Firstly, the “potbelly stove” can only be used in garages where air is supplied, and the presence of an exhaust ventilation pipeline is a prerequisite.
• Secondly, the heating structure is installed in the area that is remote from wooden elements structures, flammable objects and fuels and lubricants.

The undoubted advantages of homemade heaters include:

• low price of equipment;
• minimum costs for the installation of the furnace;
• good heating capacity with small size;
• low cost of installation;
• simple maintenance;
• ease of installation, no foundation;
• multifunctionality - the oven can be both a heater and a device for heating and cooking food.

The disadvantages of home-made heaters primarily include high fuel consumption, since the design of the heater of such furnaces does not generate heat.

The problem can be partly solved by using a waste oil furnace. This cheap and simple stove is easy to install, and finding fuel for it is not a problem, oil of any refinement is suitable, even unrefined.

If you organize a tank for draining spent fuel in the garage, it will be delivered almost free of charge. Can be used as fuel:

• transformer
• transmission
• engine oil
• diesel fuel.

If the garage is an extension to the house, a good solution would be to equip it with heating by connecting it to a common network. If the garage is located away from residential premises, you need autonomous system heating. All garage heaters can give good effect, the main difference is only in what energy source is used for their work.

In the garage, utility room at a construction site or small dacha often there is a need to quickly warm up the room. In such cases, it is completely inappropriate to think about stationary heating. It is more practical to use a powerful and productive portable heater that can quickly warm up the room or make it as comfortable as possible. Gas heaters for a garage from a cylinder have proven themselves best, you just need to familiarize yourself with their varieties in order to determine the most suitable option for a specific situation.

All gas heaters work on a similar principle, the heat source is the active combustion reaction of methane, propane-butane, but the methods of heat transfer from the combustion chamber to the consumer differ. The main division is between infrared and convection designs.

Gas heaters are able to give a large thermal power at low fuel costs and compact dimensions of the device itself. Among the models on the heater market, there are devices with a capacity of 1.5 to 10 kW and even higher, which is enough to warm up a vast trade pavilion, an indoor sports field or an extensive multi-car garage. The gas consumption in this case is approximately 100-300 ml of liquefied gas per hour for a 3.5 kW heater.

When purchasing a gas heater, you should always remember that its use is always associated with an increased risk of fire. In addition, portable devices are not equipped with a chimney to remove combustion products, over time, the oxygen in the room is burned out, and the concentration of carbon dioxide increases, which will affect the well-being and health of people. A mandatory requirement for the operation of a gas heater is constant and active ventilation of the room.

infrared

Thermal energy is transmitted mainly by radiant energy, infrared radiation emanating from the heater. At the same time, it is not the air that is heated in the first place, but objects in the room or the area of ​​​​the heater. The radiation is easily directed with the help of mirrors and reflectors in the right direction, without wasting heat in vain. Space heating is not accompanied by active air convection, which is great even for open areas and rooms with active ventilation.

The source of radiation can be either an open flame or heated to high temperature surfaces. So the following types of infrared gas heaters have become widespread:

• ceramic;
• catalytic combustion.

At the same time, these two types differ in the way gas is burned. In ceramic, the combustion process takes place inside a protected chamber. In catalytic combustion open type throughout working surface, and it is required additional protection. However, the catalytic burner is often made in the form of a ceramic plate.

Ceramic

The preparation of the gas-air mixture and its combustion takes place in an isolated chamber, preventing the flame from escaping to the outside. Most of the heat generated is transferred to the ceramic plate with a large surface area. Already after with outside plate emits energy in the form of infrared waves. The composition of the ceramic plate and its shape are selected so as to increase the proportion of thermal radiation and reduce the surface temperature of the heater.

The purpose of creating ceramic infrared heaters was to reduce the risks associated with the use of flames and explosive gases. The combustion chamber is well protected and equipped additional funds protection that will shut off the gas supply in any emergency situations. AT best case The following protection components are available:

• Heater temperature control. Shutting off the gas supply when the plate surface overheats or, conversely, if for some reason the flame in the combustion chamber goes out.
• Position sensor. If the heater tips over, turn it off immediately. In many models, automation is responsible for this, which will turn off the gas supply if the position of the heater is unacceptably changed.
• CO2 sensor. Turn off the heater if the room accumulates carbon dioxide above the allowable limit.

Ceramic gas heaters cover the entire power range from 0.5 to 15 kW available for portable devices, they are safe and reliable in operation. However, their cost is higher than catalytic analogs.

Among the advantages, one can indicate the possibility of removing combustion products outside the room, which is facilitated by a closed combustion chamber. Some models have an outlet, to which, if necessary, a chimney made of heat-resistant material, such as an aluminum corrugated pipe, is connected.

catalytic

In this type of heaters there is no flame, the gas is not burned in the usual sense, but is actively oxidized by oxygen with the release of heat. Such a reaction is possible only in the presence of a catalyst, in the role of which platinum or other elements of the platinum group are used.

Special lamellar grating made of refractory material(steel, ceramics) is coated with a catalyst. The oxidation reaction starts only after the catalyst plate has warmed up well and gas is constantly supplied to support the process. Oxidation of the gas occurs only directly near the surface with the applied catalyst, which prevents the occurrence of active flames.

The heat generated by the heater is mostly distributed by infrared radiation. However, an active convection process is also formed, since the overheated oxidation products remain inside the room and mix with the air.

Advantages of a catalytic heater:

• Compact dimensions and the lowest weight among gas heaters.
• Ultimately simple design.
• Possibility to orient the heater with wide angle reversal.
• Affordable cost.

Disadvantages:

• Active oxidation is not much different from open combustion in terms of the release of harmful combustion products.
• The high surface temperature of the catalyst, if handled carelessly, increases the risk of fire, therefore, increased attention and additional protection of the heater is required.

Convection

Convection gas heaters stand out as a separate group. burned in a closed combustion chamber natural gas or propane-butane from a cylinder. External surface The chamber forms a radiator with a large heat exchange area, with the help of which the air is actively heated. To protect the combustion chamber, as well as create a channel through which air will move, the heater has a metal casing.

On the body of the heater, like any convector, there are slots in the lower and upper parts for air access. The air heated from the combustion chamber rises and exits through the upper slots, making room for the cold air entering from below. This maintains a constant air convection inside the convector, which contributes to the mixing and heating of the air in the room.

This type of garage heater with the gate wide open is unlikely to be effective. With a large air exchange rate, it will not have time to warm up and the room will still be cold. But gas convector will be indispensable in garages, at a construction site or inside a small country house where only ventilation is used and there are no strong drafts.

In convectors, air is most often taken from the street to maintain combustion and combustion products are discharged there, which eliminates any problems with burning oxygen inside the room and the risks of carbon monoxide poisoning.

Another feature of convectors is that it takes more time to warm up the room, but with less gas consumption. Together with increased security and block electronic control, such a heater will be ideal solution to maintain the minimum temperature in the garage at +5 to prevent freezing.

Price

In the range of gas heaters, models for the garage stand out. They are compact, easy to connect and maintain, do not need electricity. In order of increasing price, it is enough to define three groups:

• Gas catalytic burners are the simplest design, with minimal protection. The cost is in the range of 800-2500 rubles.
• Infrared heaters with a catalytic burner - the presence of a housing, a convenient grip or stand, compact dimensions and more often directional action. The cost is within 1300-4500 rubles.
• Ceramic heaters - housing, directional action, safe temperature heating element protective grille and a reflector. Price from 2500 rubles.

Which is better to choose

Making a choice is easier if you set specific goals.

If you need to quickly warm up a garage of a small volume, moreover, not regularly and for a short time, for example, to repair or maintain a personal car, then better fit heater with catalytic oxidizer. The simplest connection, small dimensions and the ability to install the heater in almost any position will only contribute to this.

If constant heating of the garage with gas is required, during regular work. If it is desired to heat a specific area, for example workplace or the engine compartment of a car, then naturally a ceramic heater wins. It is enough to install it permanently in one place, while not losing the opportunity, if necessary, to rearrange and enjoy a comfortable temperature, while not worrying that the heat will go aimlessly outside. However, the cost of such a solution will be almost the highest. Among the advantages: reliability, safety and durability of the heater.

When a normal ventilation system is installed in the garage and the gates are closed, you can opt for convection gas heaters. Such a solution is also relevant with the constant presence of people in the room. The presence of automation in the heater will allow you to safely maintain minimum temperature at a level of +5 °С, preventing the walls and the car from freezing, after which it will not be difficult to start a car even in the most severe frosts.

Storing the car in a heated room significantly reduces the cost of buying antifreeze and car maintenance, allows long time be in the garage during the necessary repair work. Temporary heating devices are very convenient to use, a wide range of which is offered by specialized stores. Depending on the conditions of the room, you can install garage heaters using gas, liquid fuel or electricity.

Oil heaters

Diesel or kerosene garage heaters have a significant advantage for our winter: they very quickly raise the air temperature even in an uninsulated room.

In addition, the low power consumption required only to drive the fan ensures safe operation during long-term continuous operation of the devices.

Offered for sale heaters direct and indirect heating. Devices of the first type do not have a chimney, which makes it difficult to use them in a small garage. Judging by the reviews of car owners, indirect heating devices equipped with a vent for removing combustion products have gained the most popularity.

Diesel heaters for indirect garage heating are convenient because they do not take up much space. The design of the fuel tank and combustion chamber works according to simple principle: through the nozzle of the fuel tank, diesel fuel enters the chamber, where it burns out with the help of air supplied by the fan.

Air streams, having passed the heat exchanger, are directed through the nozzle into the room, warming it evenly and quickly. Combustion waste is removed through the chimney without polluting the air inside the garage.

The service life ensures daily continuous operation of the device for 15 hours, which is very important when a long-term car repair is required. Modern heaters for diesel fuel are usually equipped with a flame control system that automatically turns off an overheated appliance.

For some models, the possibility of remote control of the air heating temperature is provided. This feature allows you to control the operation of the device from a distance and provides its increased mobility.

When using the heater on liquid fuel It is important to consider that the concentration of oxygen in the air decreases in proportion to the operating time of the device. For creating comfortable conditions the room must be ventilated periodically.

Gas heaters

Connecting garage premises to mains gas is rare, therefore, for their heating during the season low temperatures usually use mobile heaters for LPG garage. The most popular are convectors and ceramic screens.

Advantages of such heaters:

• rapid heating of the room;
• compactness;
• mobility and ease of transportation;
• possibility of use far from connection to electric networks;
• lack of working noise;
• low prices for maintenance and operation.

The cost of gas convector heaters for the garage is higher than that of electric ones. heating appliances. But, given the rise in electricity prices, the cost of its purchase is quite justified and will pay off within a month.

The principle of operation of the convector gas appliance is based on the circulation of air heated by the combustion of gas in an autonomous chamber. The combustion air is supplied from the outside through a coaxial duct, additionally equipped with a chimney.

Convector heaters are convenient to use for periodic heating of the garage as needed. Modern devices allow you to save bottled gas consumption due to an automatic control system thermal regime. The temperature of the heated room is maintained by a thermostat in the range from 13 to 38 C°.

The protective casing of the convector heats up to a temperature not exceeding 60 C°, which significantly reduces the likelihood of burns in case of an awkward touch. In the event of a fire hazard gas valve blocked by a flame control unit. Thanks to the universal design of the gas valve, the convectors can be easily switched to consume network gas instead of bottled gas.

Ceramic gas heaters are also often used for temporary garage space heating. These devices are characterized by low fuel consumption, compact size and safe operation. They have built-in sensors of the automatic control system, which ensures the cessation of gas supply in case of emergency extinguishing of the flame.

The case made of stainless steel is resistant to negative environmental influences. Used as fuel liquefied gas from cylinders that are easily refueled at specialized stations and do not create difficulties during delivery.

Electric heaters

Heating with electrical appliances is still the most common and accessible way heating. Garages often use household electric heaters, which are commercially available in a wide range. They are mainly used for local heating of a room during repair work of a small volume.

Oil-filled electric radiators are popular. Such devices are convenient, safe, they are easy to move. Also often used are thermal fans that supply hot air in a given direction.

Flexible electric heaters are comfortable in operation, distributing heat to a sufficient large area. Made in the form flat screens which are convenient to hang on the wall.

Dignity electric heating garage is big choice heating appliances of various capacities. Disadvantages: the need to connect the garage space to the mains, a small heating area, high payment for electricity consumption.

Homemade garage heater, which is asbestos-cement pipe with a nichrome spiral wound around it, does not meet the requirements fire safety and is not recommended for use.

Infrared (IR) heaters

The principle of operation of infrared heaters is quite simple: the deflector of the device directs the rays from the heater in the right direction. In this case, the objects in the room are heated, and they, in turn, give off heat and warm the air. In a garage, heat rays are usually directed towards the floor, so appliances are fixed to the ceiling.

The main advantages of infrared heaters:

• large heating area;
• efficiency and reliability in operation;
• the possibility of automatic temperature control in a given range;
• long life of trouble-free use;
• environmental Safety.

Stationary infrared heaters usually use electric current as an energy carrier.

If the garage is heated solely to maintain the good condition of the car, then it is better to install an IR heater directly under the hood. The calculated power of the selected device must correspond to the value of 50 W per 1 m 2 of the heated area.

In the case of frequent repairs, it is advisable to use an additional infrared heater placed above the workplace and switched on as needed.

If it is necessary to heat the air to a comfortable temperature of +20 C ° in the volume of the entire room, the power of the heating device is calculated based on the value of 100 W per 1 m2. The installation is carried out according to a scheme similar to the heating device with IR heaters in a conventional room.

For mobile infrared heaters, liquefied gas can serve as an energy carrier. The device is connected to a cylinder, the volume of which is usually designed for 60 days permanent use. There are infrared heaters with the ability to connect to a centralized gas network, but they are rarely used in garages.

In gas infrared heaters, sensors must be installed that monitor the oxygen content in the air, the presence of negative mechanical effects on the device (falling or tilting) and the level of the flame. In case of violation of safety conditions, the signal from the sensors leads to automatic shutdown heating device.

Homemade heater

If a family budget does not allow you to buy heater industrial production, you can make a garage heater with your own hands. options invented craftsmen set, but any of them must meet the following necessary requirements:

• no harm to health: the device should not burn oxygen in the room, emit toxic substances and unpleasant odors;
• compactness and mobility;
• fast heating and long-term maintenance of optimal air temperature;
• safety in operation: the threat of explosion and ignition must be completely eliminated;
• low cost of materials for manufacturing and components;
• simplicity of design.

Examples of how to do homemade heater for garage devices can be found in specialized magazines and on related sites on the Internet.

The garage belongs to the premises with an increased fire hazard, so the use of a heater, regardless of type, requires caution and careful observance of safety requirements.

A heater in the garage is needed not only when you have to repair a car in cold weather, it will also help to start the engine in the most severe frost.

Type of fuel

An electric heater is good because it does not require any preparatory work. However, to heat the garage large area it will take a lot of time and electricity, which will affect the electricity bills. In addition, poor wiring in some garage associations does not allow the use powerful technique.

The main advantages of a gas heater: low cost of fuel, as well as compactness and mobility. With it, you can quickly warm up the garage, and then transport it to the country house or send it to the cellar for storage. gas cylinder can be stored for a long time at any negative temperature.

Liquid fuel heaters are used to heat poorly insulated rooms, such as car services or workshops, where you constantly have to open the doors to the street. They can use kerosene, diesel or waste oil as fuel. Last option it is advantageous to use it at car services, where such fuel can be obtained for free.

Direct-fired oil heaters should only be used in a well-ventilated area, as combustion products are released into the air during use and can cause poisoning. Indirect heating heaters can also work in closed, unventilated rooms, since the smoke from them is removed through the hose outside the garage. Liquid fuel models require an electrical connection to power the security systems, fan and fuel pump, but their power consumption is minimal. Such heaters are larger than gas and electric ones, and their operation is accompanied by significant noise.

Types of heaters

An infrared heater heats the surrounding objects, not the air. When installing the device directly in the working area, you can spend energy only on heating it, and not spend resources on areas that are not used. This option is convenient in the garage, in which the doors are constantly open or often open. The infrared heater does not drive air around the garage, which is important when carrying out painting work. Its advantages include silent operation and the fact that the device does not burn oxygen. Motorists use such a heater in winter to heat the engine at night so that there are no problems starting it in the morning.

The convector is one of the most economical and silent electrical appliances for heating. It heats up cold air, which then rises to the top. This type of heater is suitable for a garage with a low ceiling, otherwise the room will warm up for a very long time. When using a convector, it is necessary to exclude the escape of heat to the street: the walls and ceiling of the garage must have good thermal insulation and the door must be closed.

The heat gun is equipped with a fan, which contributes to the rapid spread of heated air throughout the room, so it can be used for heating large space. Such a heater can be either electric or run on liquid or gaseous fuel. Models with a cylindrical body create a stream of hot air, which is directed to working area. Devices with a rectangular body are used for uniform gradual heating of the room.

Infrared long-wave radiation most naturally reproduces the impact sun rays to the surface and turns out to be the closest and most useful to human physiology. The use of this method of heating has gained popularity in the shortest possible time. Many designs of heaters flooded the market with manufacturers' offers.

As a source of radiation, already classic halogen, quartz and, which appeared no more than 15 years ago, carbon lamps are used. And besides, all kinds of panels, tapes, etc. By the way, many of these heaters have a stylish design solution and are able to be a real decoration of the room, performing, in addition to purely utilitarian, also aesthetic functions.

Infrared heaters are very effective indoors and outdoors, creating a localized area heat transfer in the right place. This property is widely used to create heating areas near windows and doors. This greatly increases the comfort of staying in such premises.

The use of infrared heaters

Perfection infrared emitters generally accepted. They are used as household appliances with placement on walls or ceilings, which allows save a lot usable space and at the same time heat all parts of the room and the situation in it that are on the way infrared rays. If the emitter is placed on the ceiling, it will play a role similar to the sun in the room. As a result, the floor surface will heat up and constantly give off warmth such an increased heat transfer efficiency is an characteristic feature infrared heaters.

And what is very important, such radiation is most consistent with natural radiation. natural warmth. High economic efficiency is explained lack of losses heat energy that is not used to heat the surroundings airspace. It is gradually heated by secondary heat given off by heated surfaces. This principle of thermal energy transfer makes infrared heaters the most economical of all. existing types. Their use brings real energy savings in the amount of 40% compared to other types of appliances of the same power.

Benefits of using IR heaters

A significant variety of power characteristics of the ranges of infrared emitters allows you to make a choice for a room of any volume.

When installing such a heater as a ceiling heater, you should take into account:

1. The minimum distance in height to the head of a person standing should not be less than 0.7 meters with a minimum power of the device of approx. 800 W.
2. With its increase, the distance must also be increased, at least 1.5 - 2 meters.

Having decided to use an infrared heater, you can roughly calculate the required power from the ratio of the heated volume. For 1 cubic meter space will be required from 25 to 100 W, depending on the type of room. On average, about 35 watts per cubic meter is taken. Of course, the infrared heaters of the new generation are more advanced than the reflex heaters used with open spiral. Until now, somewhere in the pantries, on the mezzanines and garages, these rarities of the past are stored. Their use is dangerous, especially in garages. An open hot element and constantly present vapors of gasoline and oils create fire hazardous environment.

However, the new generation of infrared thermal devices is completely devoid of such shortcomings. A special quartz or carbon lamp emitter is reliably protected by a sealed tube made of durable quartz glass. From her inner space air removed. Lamp completely safe. The period of continuous operation of the simplest emitters in the maximum mode is not less than 1.5 years. Even more consistent with the natural level of radiation of the human body, a carbon lamp manufactured using nanotechnology operates in the range from 5 to 20 microns.

Radiator heaters of this type are completely unique, they do not have magnetic field, and when turned on, like all IR heaters, they immediately go into thermal mode. As in residential premises, in the garage, the use of radiant heating has significant benefits. As already mentioned, after switching on, the operating mode is reached in 10-30 seconds. The operation of all devices of this type is silent.

Economy of operation increases from 30 to 60%, since the surfaces are directly heated, the areas that do not fall into the zone of radiant energy do not heat up. In this way, you can save a lot on heating only the necessary areas: a rack with tools, a side cart, etc. If you place the heater on the ceiling, the floor in the garage, the car and all objects will receive an analogue of sunlight, which, among other things, contributes to elimination of fungal and mold in the garage, where it is quite damp.

Emitters on a rack

If the emitter has a stand and mount, it can also be used to create conditions for working on open air. Variety infrared heating - special panels generally allow them to sheathe walls and ceilings. Their low power consumption absolute security for paintwork car, safety and environmental friendliness, combined with a service life from 25 years old, make them ideal for use in garage heating. Even one panel placed under the hood at the rate of 50 W / 1kv. m, will provide preliminary safe heating of the motor, saving precious time to its owner.

Varieties of infrared heaters

• electrical;
• gas.

In addition to electric infrared emitters, there are gas ones (they work on a propane-butane mixture). They are safe enough modern designs such devices are supplied control sensors harmful emissions, the presence of a flame, etc. however, the use of such a device in garage conditions a priori raises deep doubts. Moreover, there are infrared heaters, panels and film heaters. With their help, you can completely very economical heat the entire garage by pasting such infrared film ceiling, walls, pit and basement. The film really gives such an opportunity. Even more, it can be closed decorative coating wallpaper type.

Radiant heat will flow in, heating the surfaces of the garage. I have an opportunity automation of adjustments and control using a plug-in thermostat unit with a timer. If infrared heaters can take up space, sometimes require dusting off them, then panels and films completely maintenance-free, easy to install and connect by the owner of the garage. The benefits of using a new generation of radiant heat sources in the garage are obvious.

The comfort of garage storage of a car is increased, the possibility of planning work in warm garage, economical heating garage with film or panels, the possibility of using an IR emitter in the technology of drying treated surfaces. Under I.K. rays, the putty dries up to 4 minutes, the primer up to 8 minutes, and the varnishing up to 12 minutes. The surface is perfectly smooth.

Summing up the expediency of using radiant heaters in the garage economy, it is necessary to say about the disadvantages of their use:

• rather high cost;
• the need to monitor the residence time and compliance with the requirements of the installation in order to avoid overheating of a person;
• the novelty of such heaters requires preparation when choosing and buying them, an abundance of "pirated copies" of well-known brands.

For those who want to independently make an analogue of an infrared heater, you can give a few simple options for making them yourself. There are many suggestions on the Internet, both practical and fantastic. Here are some of them.

First, how to fix an old Soviet infrared reflector. If the plate is intact and was not used for an impromptu TV antenna, you need to check the integrity of the power cord, plug and connection to the spiral connection terminals. For making a spiral first, the length of the spiral winding on the ceramic cone of the reflector is measured. Then nichrome thread is wound in 2 mm steps on a steel rod of approximately the same length as measured on the cone. After winding, nichrome is removed and in a free state (without interturn short circuits) fits on refractory dielectric. Any glazed ceramic plate will do. And the electric current from the socket is connected to the ends of the spiral. After heating, the coil is turned off, placed in the groove of the ceramic cone of the reflector and connected to the power terminals.

The second, well-known option for filling a metal box from a cream or shoe polish with a mixture quartz sand and graphite dust in the ratio 50:50. First, the inside of the box is cleaned to a shine. Two 1.2 mm holes are made in the side wall. Two round pieces of tinned (food) tin are cut along the inner diameter. They are soldered on a wire with a cross section of about 1.2 mm.

The first layer of the mixture is poured up to half the depth jars, the first plate is laid, the wire is led out into the first hole. Filled up, a little not to the top, the second sand-graphite layer. The second plate is laid and the wire is brought out into the second hole. The rest of the mixture is poured with a slide. The lid fits tightly. Need to provide pressure on the content.

The heater power increases with increasing pressure. It works from the network 220 V and more low voltage. When sintering the contents, it is enough to knock on the box. The principle is the same for boxes of all sizes.