Heating systems in greenhouses. How are greenhouses heated? Heating methods, features and practical recommendations. How to heat a greenhouse in early spring

Almost on every suburban area and a garden of the private sector there is a greenhouse. They are used mainly in the spring and summer for growing seedlings and summer heat-loving vegetables. And sooner or later, every greenhouse owner begins to think about its profitability. You can increase its efficiency only when you use it all year round, or when growing very early products, when everything is very expensive on the market and in the store. Now it has become fashionable to create winter gardens and grow greens, radishes, cucumbers in the cold season. New Year and flowers on March 8. Of course, it's great to have fresh food from your greenhouse for the holiday in winter, but for this you need to make it heated, because our winters are long and harsh.

means to increase its efficiency

But for early or year-round use of the greenhouse, heating is needed, because there are severe frosts on the street in winter, and minus air temperatures are not uncommon. And then the question arises of which heating to choose, which is personally acceptable for your household plot, because any of them requires a financial investment. Here you need to figure out what the funds will be enough for and which heating will be less expensive to maintain. In addition, it is necessary to take into account the durability and efficiency of the selected type of heating.

Greenhouse heating is the most important part of the microclimate in plant life, as is watering. Consider how it will be, preferably before the start of construction. It is better to do it right away, so as not to redo it later. Consider different ways heating, the pros and cons of the selected options and choose what is most convenient and least expensive.

How to heat a greenhouse in early spring?

In order to grow seedlings and early summer products, it is not necessary to use any heating. To do this, it is enough to make greenhouse beds on overripe manure. It is necessary to remove the fertile layer of soil, instead of beds, trenches will turn out. It is advisable to make boards for the future from boards or other improvised materials. Lay a thick layer of overripe manure mixed with straw or peat on the bottom. Pour a fertile layer of soil on top. The manure that rots below will release heat and moisture. Plants planted in high warm ridges will feel comfortable.

When it is still cold outside, you can stretch the film over the greenhouse with a second layer. Between the main layer and the additional one is formed airlock which will also keep you warm. The greenhouse should be positioned so that it is in the sun as long as possible. The sun's rays will penetrate the film or cellular polycarbonate and heat the surface of the earth in the greenhouse. Thus, natural heat will condense in it. This is how you can "naturally" heat the greenhouse, just do not make the roof too high, then it will warm up more. Experience has shown that the highest efficiency in terms of heat retention is in greenhouses with an arched structure.

But there are some downsides. If you do not have your own manure, then you will have to buy it, and this is enough now. expensive pleasure. In addition, it must be stored in the fall. And make the ridges every spring anew. This is a very labor intensive process. Do-it-yourself heated greenhouses are not easy to make. And in winter, such “heating” will not be enough.

Stove heating

How to heat a greenhouse without gas and electricity? One of these methods is to make an ordinary stove, from which a chimney is fired horizontally along the walls of the greenhouse. It should gradually rise up and finally be brought out. Thus, the greenhouse will be heated. The firebox must be made so that it opens outside the greenhouse, because it is impossible for soot and smoke to penetrate into it. Then the quality of vegetables will suffer.

You can install a stove with a boiler in which water will be heated, and then it will circulate through pipes that will be laid on the ground along the length of the greenhouse. Hot water will heat the air.

If the efficiency of such systems can satisfy the user, then the laboriousness of the process is very tiring. The fact is that you need to constantly monitor the temperature, often throw solid fuel. Not everyone can quit their job and be a stoker in their greenhouse all winter. And is it worth it?

When building heated greenhouses with your own hands, it should be borne in mind that the film and glass do not hold heat well, and therefore they need to be better heated. Cellular polycarbonate, due to its design, keeps heat well, and therefore heating costs will be less.

Heating with heat generating boilers - also good view. Unlike simple ovens, the heat generator with solid fuel should be charged no more than 2 times a day. There are systems for diesel fuel. The efficiency of such heating is not the highest.

Gas heating

Gardeners are interested in how to make a heated gas greenhouse. If it is small, then bottled gas can be used. If the greenhouse has industrial scale, then you need to take permission and use natural. For use burners of conventional heating and with infrared. A conventional water heating system based on AGV is also used. Gas, of course, is profitable, because it is cheaper than electricity.

Using such heating with burners, it is necessary to make ventilation, and this already reduces the efficiency of heating. If you do water heating based on gas heating of water, then the system can be fully automated. Without constant human control, the microclimate in the greenhouse will be maintained. The main thing is that it is profitable from a financial point of view, and the costs could soon pay off.

Heating by air heating

How to heat a polycarbonate greenhouse with air heating? This heating can operate on liquid fuel and on electricity. Most often used in large greenhouses. The unit heats the air, which is directly blown out in the center of the greenhouse and circulates through perforated polyethylene sleeves laid out along the length of the building. Thus, the air inside is heated.

Convectors are good too.

It is possible to heat the greenhouse electric convectors. They are installed on the walls of the structure and on the floor. Convectors heat the air well, they have timers that can be set to a certain temperature, and they will turn on and off themselves. One drawback is that they are quite energy-intensive, and electricity is now expensive.

Hot air heating

Much more can be done to heat the greenhouse in winter. Some are heated with portable heat guns (fans), heaters. These devices actively blow hot air heating up the room quickly. The main thing is to arrange them so that they do not dry out or burn the plants. Well, if they are equipped with thermostats. Then you do not need to monitor them constantly, it is enough to set the desired temperature, which they will maintain.

Heated floors in the greenhouse

A heated polycarbonate greenhouse with your own hands can be made with complex heating. After all, it is necessary to heat not only the air, but also the soil in which plants grow. To do this, some use the design of "warm floors". A sand cushion is laid, a protective mesh is placed on it, then a heating element or cable, then a protective mesh again and a sand cushion on top. Then the soil is poured with a layer of up to 20 cm. It is necessary to set the thermostat so that the soil does not warm up more than 45 degrees, otherwise the roots of the plants may suffer. This method of electric heating is very economical, with high efficiency. From above the greenhouse warms up the sun, cellular polycarbonate retains heat. From below, the soil is also warmed up, and the heat from it rises.

The most efficient heating method

There is another way to heat a polycarbonate greenhouse in winter. It's infrared electric lamps and heaters. These devices are good because they do not dry the air and act as solar energy. The sun's rays, as you know, reaching the surface of the Earth, heat objects and are reflected by heat. There are also lamps and heaters with infrared radiation. If they are placed along the entire length of the greenhouse, under the ceiling, then they will heat the soil, plants, walls, and, reflecting, the heat will accumulate in the room. They are absolutely harmless, with a very high efficiency. Because they give a lot of heat, and energy costs are small at the same time. Such heating can be very easily adjusted to create the desired microclimate in the greenhouse.

Perhaps today it is the safest and most profitable method to heat a greenhouse in winter.

It is important not only to heat the greenhouse, but also to save heat

In order to be profitable, it is necessary not only to heat the greenhouse well, but also to use all possible means to keep this heat as best as possible.

To do this, it is good to apply all knowledge in the complex. A well chosen place to build a greenhouse, no shade, all day under sunlight. The greenhouse should be located so that the wind does not blow out the heat. Nice warm base. The cover of the greenhouse is better from cellular polycarbonate. There should be no gaps in the structure: in winter, in frost, any draft is fatal.

You can use warm high beds with manure, which will also accumulate heat. You can grow seedlings on racks. It is good to combine the heating of the greenhouse: to increase the temperature of the air and the soil. By the way, for the effect of warm floors, you can use waterproof mats. They are convenient to use in greenhouses with racks, placing heating mats under them. Heat always rises from below, warming the trays with plants and the air.

Make heating yourself or order ready-made?

You can not invent a bicycle at all, but ordering a greenhouse, immediately buy a heating system and fully maintain the microclimate. Specialists will deliver the design and as soon as possible will install. They equip it with all the necessary options, which is called "turnkey", and they will also give a guarantee.

Everything, of course, depends on your financial capabilities and desires. Every year, new products appear on the market that will help make the greenhouse pay off all year round. What kind of heating you want to make depends, of course, on how you want to use it: grow something all year round or in early spring and summer.

The greenhouse allows you to get a crop when other gardeners are still watering or planting their plants. The greenhouse allows you to grow early products thanks to the heating of the greenhouse with your own hands, since the heat of the sun allows the crop to grow only in the summer. Thanks to this design, fresh products can be grown even in winter time. Minimum allowable temperature in the greenhouse should be +18 degrees. However, in order to obtain such conditions, impenetrable walls alone will not be sufficient.

The most economical will be the installation of a greenhouse in the place where the thermal route passes. In such a situation, it is only necessary to find the most suitable place and you can proceed with the construction of the greenhouse. In other situations, the construction of a greenhouse will be a more complicated process, but it can also be done by hand - just like heating a greenhouse with your own hands.

Heating with solar panels

It is possible to heat the greenhouse structure and make home-made heating in the greenhouse through sun rays. The first stage in the construction of the greenhouse will be a hole in the hole about 15 cm deep. Next, the ground must be covered with a layer of polystyrene or other heat insulator. From above it is all covered with a layer polyethylene film to provide waterproofing. Wet sand is placed on the film and covered with earth. This type of device, although quite simple, can nevertheless maintain the optimum temperature in the greenhouse.

You can do in the greenhouse and simple air heating of greenhouses with your own hands. Most simple method for heating the greenhouse there will be air heating - good decision the question of how to make heating in a greenhouse, which is described below:

Gotta take a piece steel pipe 2 to 2.5 m long and 50 to 60 cm in diameter.
Under one end of the pipe, you need to kindle a fire, and insert the other end into a greenhouse covered with a film.
The fire must be maintained at all times. The air in the tube will heat up fairly quickly, and the plants will get the warmth they need.

This method of heating, at the same time, is one of the easiest, but also the most inconvenient, since the fire must be maintained all the time.

Heating the greenhouse with gas

The main advantage of gas is that, in terms of supply, it is much more stable and accessible than a campfire. In order to winter period to heat the greenhouse, you do not need to conduct gas from the house to the greenhouse, as this is not entirely advisable. Also, such a scheme for heating a greenhouse will require some costs. It is best to purchase several cylinders of gas, which should be enough. However, it is worth paying attention to the fact that a large number of carbon dioxide may result in plants not growing properly.

Also, poor ventilation of the greenhouse can also affect the negative growth of plants. It will also be necessary to install a means for extracting combustion waste into the greenhouse.

The heaters that will be used for your greenhouse must be equipped with special sensors.

They are necessary so that in the event of a cessation of combustion and the release of gas into the air, such devices immediately work and shut off the gas supply to the burner.

Heating a greenhouse with a solid fuel boiler

Such projects of greenhouses with heating can be located both in the greenhouse itself and outside it in any other room. The second option has some advantages, since in order to add fuel or wood to the fire, it will not be necessary to go to the greenhouse. The disadvantage of this option is that if the boiler were located directly in the greenhouse, it would also emit some heat.

In the heat generator, you need to add fuel only twice a day. Moreover, from the point of view fire safety, such winter greenhouse does not pose a threat on its own. Thanks to this parameter, it can be safely left unattended all night. Another advantage of the boiler is that it requires a minimum consumption of fuel material.

Furnace heating of the greenhouse

Do-it-yourself furnace heating of a greenhouse, compared to electric, does not burden financial costs so much. A simple stove for a greenhouse can be easily built with your own hands, without actually spending any money.

The principle of the furnace for the greenhouse:

In the greenhouse vestibule, a furnace firebox made of bricks is laid out.
A chimney is laid out along the entire length of the greenhouse.
The chimney is removed from the greenhouse on the other side in order to carbon monoxide weathered, but the heat remained inside. The distance between the firebox of the greenhouse and its end side should be no less than 25 cm. The distance from the bed with plants to the top of the hog should be no less than 15 cm.

Before you build a greenhouse with heating with your own hands, you can explore another way:

Finding a barrel large sizes, with a volume of at least 3 cubic meters. Inside the barrel we paint in 2 layers to prevent the rust process.
Holes are made in the inside of the barrel, one of which is for the chimney, and the others for the expansion tank and for the tap.
We cook the stove and insert it into the barrel.
The chimney is removed from the barrel, and a pipe about 5 meters long is installed from the outside.
An expansion tank with a volume of 20 liters is mounted on the barrel, which must first be welded from ordinary sheet iron.
From profile pipe, which has dimensions of 40x20x1.5 cm, the heating itself is brewed. The pipes must be laid out on the ground so that they are located at a distance of 1.2 meters. Such an arrangement of pipes will allow the soil to warm up in those places where the roots of the plants are located.
In order to ensure the circulation of water, for such makeshift systems you need to purchase a special pump.

Hot water heating of the greenhouse

If we take the calculation of the heating of the greenhouse, then in comparison with other types, the arrangement of water heating of the greenhouse will be the most beneficial. Water heating do-it-yourself greenhouses - an electric water heater can be done simply:

It is necessary to take the body of the old fire extinguisher, and cut off the top of it.
A heating element with a working power of 1 kW is installed at the bottom of the fire extinguisher. Such a heating element can also be taken from an old samovar.
On top of the device, we make a removable type cover so that water can be poured into the heater.
We attach two tubes connected to the radiator to the body of the device. We fix the tubes with nuts and gaskets. In order for such a heater to work in automatic mode, you can use a circuit with a relay alternating current and voltage in 220V.

When arranging a heating system for a greenhouse or greenhouse, the most important thing is to comply with all necessary instructions as well as safety regulations. A video on how to equip a greenhouse with your own hands can be viewed below.

Ecology of consumption. Manor: Heating a greenhouse in winter is probably the most great article expenses. Consider how to organize the heating of a greenhouse in winter, if possible without investing large amounts of money.

Without a doubt, the greenhouse on personal plot- necessary building.

This building, indispensable for the gardener, acquires even greater value when the possibility of heating it is provided.

cultivation early vegetables, greens, strawberries and seedlings, and with the year-round use of a heated greenhouse - and obtaining such products in the winter - is this not an obvious benefit?

Especially for those who make money in this way: vitamins in winter and in early spring- pleasure is not cheap and the demand for them is great.

The ability to remove 2-3 crops makes this business even more cost effective.

A fashionable hobby has now become the cultivation of tropical and ornamental plants. And provide them with appropriate climatic conditions throughout the year is possible only in a greenhouse or winter garden where there is heating.

How to build a greenhouse with heating? or make heating in an existing one?

How to make heating in a greenhouse?

There are many ways to heat a greenhouse with your own hands. For these purposes, different schemes are used:

greenhouse heating furnace
greenhouse gas heating
electric heating greenhouses
steam heating in the greenhouse
hot water

It is possible, for example, when laying the foundation of a greenhouse, to fix an electrical circuit in it using heating cables for underfloor heating. This option practically does not occupy the space of this building, while providing good heating, both air and soil.

But the use of electric heaters is not a very convenient solution.

The fact is that in the absence of normal air circulation, the area of \u200b\u200bthe greenhouse will warm up unevenly, that is, if one part of the space turns out to be excessively overheated, then the heat will not reach the other at all.

You can normalize the movement of air flow by mounting a fan. However, the very process of its operation also leads to air cooling. Here is another one negative moment- electricity costs will increase significantly.

To make the heating of the greenhouse with your own hands rational, to create comfortable conditions for the growth of plants, especially if you are heating the greenhouse in winter, you should choose a type of it that will provide full heating of the soil and air.

Choosing a heating system

Choosing a greenhouse heating system should take into account:

building dimensions
method of heating the house itself
their financial capabilities.

Each option has its own advantages and disadvantages.

It is important that the heating system is combined with the type of greenhouse.

It is known that heating film greenhouses, for example, requires more heat than heating greenhouses made of polycarbonate - a material that itself is a worthy heat insulator.

It is necessary to take into account the features of the system. For example, some of them, due to their high cost, are completely unsuitable for standard, small area greenhouses. Other systems require professional installation and settings.

This is especially important when it comes to heating industrial greenhouses, where Hi-tech, such as heat pumps, infrared heating and others.

Having made a decision about homemade heating greenhouses, the first step is to “feel” the entire technology of the process, take into account all the pros and cons of the chosen heating system.

It is necessary to correctly calculate the heating of the greenhouse in order to achieve the most rational distribution of heat in this room.

Now briefly about each method of heating.

Water heating

It is possible to install hot water heating of the greenhouse, operating both on electricity and on gas.

Heat source - hot water, circulating through pipes that are laid inside the greenhouse or under the floor.

The scheme and principle of operation of water heating of a greenhouse is as follows: a coolant (heated water) circulates through pipes closed in the system, which, having given off heat to the atmosphere, again enters the boiler, where it is reheated.

A larger number of pipes allows you to lower the temperature of the water heating. It should be noted that the pipe system tends to heat up rather slowly.

The boiler is the main element of such heating for greenhouses. Its choice is determined by the specific situation.

In the area where the gas pipeline is laid, gas boilers are more often in demand, as the most economical option.

Given that the heating is powered by the mains, the following happens: the water heated in the boiler through circulation pump is fed into pipes that can be laid along the walls of the greenhouse or between plants.

When installing a water heating system, copper, steel and plastic pipes are used. The latter is just what is needed in this case. They are light, affordable and do not rust.

The circulation of water in the system is usually forced, which is facilitated by installed pump, less often - natural.

When connecting thermostats to pipelines and radiators, it becomes possible to maintain a certain temperature automatically.

When laying pipes for underground heating, it must be borne in mind that steel is not suitable for these purposes. Metal corrosion will destroy and disable such a heating system.

The disadvantages of hot water heating of a greenhouse include the complexity of installing a pipe system, a high price and the need for constant monitoring.

The positive side is that there is a simultaneous heating of air and soil.

Connection to an existing heating system

Before doing anything, you need to make sure that the boiler can provide the required pressure.

In addition, it is pointless to connect to already existing system if the greenhouse is located at a distance of more than 10 m from the house.

And since the pipes laid to it must be insulated, then it will cost quite a lot. It is also necessary to take into account the fact that most of all heating is needed for a greenhouse at night. Just at this time, adjustable heating systems can lower the temperature. It is important to take into account the priority of connecting to the greenhouse.

infrared heating

For infrared heating of greenhouses use:

infrared lamps for greenhouses
infrared heaters

If we take into account the fact that such an energy carrier as electricity is the most expensive, then it becomes clear why the plan heating system is gaining momentum.

With high efficiency, they heat plants and soil without heating the air.

Then, the already heated soil and the structure of the room give off heat to the surrounding atmosphere. Moreover, it is warmer below, that is, the soil warms up well.

Savings become possible because the infrared heater does not work constantly. It can be equipped with a thermostat that controls the temperature. The infrared heater is turned on only to maintain the required temperature.

It is significant that infrared radiation completely harmless to humans and plants. By using infrared heating in a greenhouse, it is possible to create different types plants in different temperature bands, which is very comfortable for planting.

Such heating is ideal when it is required to raise the temperature in the greenhouse in a short period of time. Heaters reach the set temperature in just ten minutes.

air heating

Do-it-yourself air heating of a greenhouse is easier to build than water heating.

This method uses air as the heat carrier.

It is injected between the walls of the boiler and the furnace, while heating up, and then it is distributed through the duct system.

A polyethylene perforated sleeve is laid around the perimeter of the entire room. According to him and goes warm air, which evenly warms the soil.

Advantage this method- fast heating of the greenhouse of any area.

The disadvantage of this heating system is that you have to constantly monitor the humidity in the greenhouse. This method of heating contributes to a sharp decrease in it.

Wood heating

When choosing a heating option for a greenhouse, taking into account the growth in electricity and gas tariffs that is happening with an enviable regularity, you should pay attention to alternative way- heating the greenhouse with firewood.

Furnaces such as Buleryan are very suitable for this purpose. Their use allows you to organize the heating of the greenhouse in such a way that night trips for the next laying of firewood are not required. The room quickly heats up, and the temperature is maintained at a given level for a long time.

One bookmark of firewood is enough for 6-8 hours. The body of the stove does not heat up, which fully ensures safety.

You can build a stove for heating greenhouses with your own hands, as an option, a stove with a horizontal chimney.

Its device is as follows: a firebox is made of bricks in the vestibule, and in the greenhouse, in its entire length, a chimney is laid under the racks. It is through it that carbon monoxide passes and leaves the room through a pipe on the other side.

The heat released at the same time heats our building.

Combined heating method

Combined boilers are used quite widely. They are convenient in that they make it possible to instantly respond to changing operating conditions.

At the same time, the disadvantages of one heating method can be successfully closed by the advantages of another. For example, a power outage will not take you by surprise if heating is provided that operates on wood, gas, coal.

When there is a backup heat source, you can safely calculate the future profit from a rich harvest.

Which way to heat the greenhouse to choose, everyone decides for himself.

To choose best way heating, which is so necessary for suburban area, structures, each should be carefully calculated affordable option. And in the end, to understand for yourself what kind of heating is better for the greenhouse, more economical, more profitable and more convenient. published

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Heating the greenhouse is the key to getting a good, timely harvest. Many gardeners use water heating of the greenhouse, due to which it is possible to create in buildings of this type the temperature regime necessary for full growth. Such systems are relatively cheap, and the operation is quite simple. And how to make water heating in a greenhouse on your own, you will learn from this publication.

System Benefits

For many years, horticultural farmers could not come to a consensus on what type of greenhouse heating is the most acceptable and profitable. Of course, selection heating system for buildings of this type largely depends on the primary conditions, in particular on the possibility of connecting to a centralized gas or water main. But still in recent times most often used water heating in the greenhouse.

When choosing heating a greenhouse, it is necessary to take into account the dimensions of the structure, the heating system in a nearby residential building and the amount of financial resources that will be used to equip the shelter.

The water heating device is notable for the fact that it is powered by a boiler operating on any type of fuel:

gas;
electric;
solid fuel;
liquid fuel;
combined.

Speaking more plain language In order to perform water heating for a greenhouse, all kinds of materials can be used, which greatly reduces costs. And in order to implement water heating of the greenhouse with your own hands, you need to draw up a work plan, where there is a scheme, development projects, based on which the construction will be built.

The main advantage of such a system is safety (when compared with electric cable and heating devices), and the creation of a humid environment.

Since cellular polycarbonate does not accumulate condensate, the resulting moisture completely drains into the ground, additionally moistening it.

VIDEO: How water heating of a greenhouse works from a gas boiler

Pipes - what should they be

To make water heating for subsoil and overground heating, it is possible to use two types of pipes:

Metal. There are many options in this category, but corrugated stainless steel pipes are especially popular among them. They have a high heat dissipation, but at the same time you need to mount them very carefully, placing the system as far as possible from the rhizome of the grown vegetation. Thanks to this, it will be possible to avoid burns of the roots of seedlings and, accordingly, their death.
Metal-plastic and plastic. This version of the pipes is characterized by a lower heat transfer coefficient, but at the same time it does an excellent job of heating the structure even in winter.

Sometimes you can find water subsoil heating for greenhouses made of polyethylene pipes. But it should be understood that such systems are suitable only when the coolant temperature does not exceed 40 °.

Many people prefer budget options in the form of greenhouse shelters of a small area, since large structures are very difficult and financially expensive to heat in the cold season.

It is a fact! If the greenhouse is an extension to a residential building, then it will take less effort and energy to warm it up.

Radiators as a source of heating in greenhouses are rarely used. Instead of such heating elements, gardeners equip their buildings with wide pipes, which are located directly under the arch of the structure.

The universal pipeline laying scheme is considered optimal - from two working circuits:

The first one lies under a layer of fertile soil and its task is to heat the root system of plants. The coolant temperature should not be higher than 30-40°C.
The second is laid along the walls of the room in order to heat the air directly. In order to control the temperature in the room, it is desirable to set automatic thermostat, which will maintain the optimum level.

Some gardeners install heating pipes under the ceiling for circulation, but this is not practical for large areas. Keeping in mind the laws of physics, warm air rises, and in this case it simply does not circulate. Near the soil, the air is quite cold, which does not have the best effect on the condition of the plants.

At what depth to lay the pipeline

Pipes, as mentioned above, in most cases are laid under the ground to a certain depth. This indicator is influenced by several points:

type of crop grown (heat-loving, cold-resistant, etc.);
preferences of the owner of the greenhouse structure.

Some gardeners lay the pipeline system to a depth of no more than 30 cm, while other owners of such buildings lay pipes 50 cm from the soil level. Both options are acceptable, it all depends on the temperature of the coolant.

It must also be remembered that if the pipeline system is laid too deep, then it will take a long time to create the optimal temperature regime in the room. Whereas in the case of a close location of pipes to the soil surface, the greenhouse will warm up quickly, but there is a risk that root system, reaching his the largest, in contact with the thermal circuit will get burned. And this, in turn, hello to the withering and death of the plant.

Speaking of numbers, when laying the heating circuit to a depth of 50 cm, the warm-up time will be about two weeks. And with a contour depth of 30 cm, this figure will be reduced to 6 days. True, there is some caveat here. In the first case, to maintain the set temperature conditions in the room, it will be necessary to turn on the system 12 hours a day, while in the second case, it is necessary to heat around the clock.

Water heating device

The furnace or heating boiler, as a rule, is located in the vestibule of the greenhouse shelter, less often in the building itself. The first option, when burning wood or coal, does not prevent moving around the greenhouse and carrying out any work on growing vegetation.

When locating the boiler in the greenhouse room, it must be taken into account that heat also comes from the heating element itself. Choose a place for the boiler with special care so that nearby plants do not suffer from excessive heating.

Algorithm for a water heating device in a greenhouse:

First of all, you need to calculate the pipeline system and decide what footage of pipes will be required to implement the task.
The next step is the construction of the foundation. If the heating of the greenhouse will be carried out at the expense of brick oven, then under it you need concrete foundation. In the case of a metal heater, a steel or asbestos-cement sheet will do.
After that, you need to remove the chimney from the heater. The joints of this element with the boiler (furnace) must be sealed using, for example, clay mortar.
Next, you need to take care of ventilation, without which it will not be possible to achieve a suitable microclimate in buildings of this type.

To the output and to the input of the heating device are connected exclusively metal pipes the same diameter. And only at a distance of 1-1.5 m from the boiler can you switch to plastic or metal-plastic pipes.

Before laying the pipeline assembly, you need to install expansion tank in highest point rooms in close proximity to heating equipment. Before the expander, it is recommended to install an auto-air stop valve and manometer.
After that, you can proceed to the installation of pipes. The method of laying the heating pipeline depends on the size of the room. The only thing I wanted to add was the step of laying the contour plastic pipes must be at least 30 cm.

In order to prevent the escape of thermal energy into the ground, the heat-insulating layer is made of a material that does not allow moisture to pass through (for example, polystyrene foam). And on top of the thermal insulation, you can perform another layer of waterproofing, for which PET film is used.

Now you know how to make water heating in your greenhouse so that the soil and plants growing indoors are always in a suitable microclimate. A thorough approach to the implementation of the task will help you get a high-quality, timely harvest!

VIDEO: Water heating with a pump

Greenhouse heating is necessary for growing various vegetables in winter, such as cucumbers or tomatoes. Their successful cultivation is possible only under certain conditions. temperature regime. For this you need to set quality systems heating greenhouses, which will create such a regime. If the heating systems of the greenhouse are installed correctly and meet all the requirements, then the yield will be the maximum possible for these conditions.

Greenhouse heating methods

There are several ways to heat greenhouses and, accordingly, the heating systems themselves.

System gas heating greenhouses. It is based directly on the gas pipeline, the supply gas, the regulatory system, automatic control and measuring devices for the safety of gas use. The air in this case is heated by a heat generator in certain place and then through the duct is transferred to the greenhouse. A significant disadvantage of such a system is the dryness of the heated room, and for some plants such air is detrimental.
Greenhouse infrared heating system. The huge advantage of such a system is that it does not heat the air, but objects, in this case the soil, plants and directly the walls of the greenhouse. With such a heating system, the air does not dry out and there are no emissions of combustion products into the environment. The infrared heating system for greenhouses includes the infrared heater itself, a thermostat (it regulates the temperature automatically). One infrared heater with a power of 1 kW is enough for heating 15 square meters. meters of greenhouse area in winter, the consumption of electricity / energy in this case will be 500 W per hour.
Hot water heating system for greenhouses. It includes a water-heating gas boiler, equipped with a discharge of combustion products directly into the atmosphere. Such a system is the most traditional - the coolant (water) is heated in a heating boiler and, using a circulation pump, is pumped through pipes, through radiators and convectors, giving off heat to the soil and air in the greenhouse. In a water heating system, as a rule, several circuits are used to heat the air, boiler room and soil.

Heating a greenhouse in winter

Heating greenhouses in winter is not cheap, energy costs reach up to 400 W per sq.m. The fact is that the walls of greenhouses are usually made of transparent materials, the thermal resistance of which is quite low. Therefore, it is desirable when designing greenhouses to immediately find solutions to reduce heat requirements. It is desirable to place the greenhouse in a place protected from the wind and sunny.

Greenhouse heating systems are selected directly depending on the climate and the heat demand of the plants grown. The power of the lighting system also matters (since it additional source heat) and the nature of the soil. Give off heat and organic fertilizers introduced into the ground.

Currently, most often a water system is used to heat greenhouses. It provides an even distribution of heat and this has a good effect on the grown plants.

For more efficient heating of the entire greenhouse, stainless steel or metal-plastic pipes are placed in several tiers. It is imperative to provide a soil heating system, preferably at a depth of about 40 cm. The pipes are laid on a drainage layer (at least 30 cm), and fertile soil with a thickness of more than 40 cm is poured on top. The laying step of these pipes should be at least 20 cm.

It is desirable to mount the greenhouse heating system in such a way that it is possible to regulate the temperature in the pipes on different tiers. In the soil heating system, the temperature is usually set to 40 ° C so that the root system of the plants does not dry out. In the above ground layer, the temperature is set at 70-80°C.

The power of the boiler, the type of fuel for it - the choice is yours (depending on the size of the greenhouse, financial capabilities). The most commonly used fuel is gas.

In regions where winter temperature falls below -20°C, apply combined system heating. In addition to water heating, air heating is also connected. The air heat generator passes the greenhouse air through itself and heats it up to a temperature of approximately 40°C. Further, the heated air is evenly distributed throughout the greenhouse with the help of a network of air ducts located along its perimeter at a height of 2.5 meters.

Heating large greenhouses, for example, with an area of thousands square meters, carried out with the help of powerful industrial heat generators of a floor installation.