What kind of heating in a polycarbonate greenhouse is more profitable. How to heat a greenhouse: an educational program in all possible ways. Types of solid fuel stoves

Having your own land plot, makes you think about its rational use not only in summer, but also in winter. The most common option is the arrangement of greenhouses and even greenhouse complexes that can provide fresh fruits, vegetables and berries. all year round. If you approach the issue of building a greenhouse competently and take into account even the slightest nuances of operating such a structure, you can grow a rich harvest of not only local crops, but also tropical ones.

The most popular and suitable for such purposes are greenhouses built from polycarbonate panels. A special condition for a quality building is the presence of heating. Having studied the issue of installing a heating system, it becomes clear that all work can be easily done by hand. The main thing is that the effect of the heating system made should meet expectations, you need to think carefully in advance what type of heating should be present in the greenhouse, clarify the features of its installation, and only then start work.

Types of greenhouse heating

There are many ways to make heating in a greenhouse with your own hands, we will take a closer look at the most popular of them.

solar heating

Heat from the sun's rays is an easy way to warm a room without any material costs. Sunlight, penetrating through the transparent coating of the walls of the greenhouse, heats not only the air inside the room, but also the soil. During the summer, the hot and bright sun provides enough energy to heat the air in the greenhouse. The main thing is to make the structure in a place protected from the wind, away from the shade of trees.

The disadvantage of this method of heating is insufficient heat in winter, when daylight hours are reduced, and the sun no longer gives such luminous intensity. To provide warmth in the greenhouse right level in winter, as a rule, several other methods of heating are used.

air heating

This method involves the operation of heating and ventilation devices. They can be purchased both factory-assembled and do-it-yourself. For this, a small steel pipe set as follows: one end is located inside the room, the second is taken out through the chimney. This method has one minor minus, in order for warm air to enter the greenhouse in winter, it is heated with fires, which is very fire hazardous.

Use of stoves

This method is the oldest for space heating. Various options for using fuel make it quite economical. The boiler is installed inside the greenhouse, and only the chimney is displayed on the outside. There is one rather significant disadvantage of using such a heating system - the risk of fire due to excessive heating of the boiler walls.

Heating with biofuels

Waste products of animals and birds (dung, bird droppings, mullein), rotting and decomposing, emit heat. This can be used to heat the room.

Important ! It should be noted that biological waste in the process of decomposition humidifies the air and creates a very favorable microclimate for the growth and development of plants.

Gas heating

The trend of constant growth in the cost of gas makes this method very expensive, and growing vegetables and fruits in such conditions is economically unprofitable. Gas can be brought to the greenhouse from a centralized system, or you can use liquefied gas in balloons. One of the indisputable advantages of gas heating is the possibility of continuous heat supply to the greenhouse.

Use of electrical energy

A fairly easy-to-use method, today it is losing its popularity due to an increase in electricity prices. However, a variety of heating appliances operating from the network allows you to choose the best option for yourself.

One such device is a convector. It is a device equipped with a heating element in the form of a spiral. Warm air, evenly distributed throughout the greenhouse, warms up mainly the air. Unfortunately, the heat from the convector is not enough to warm the soil.

A heater is a small fan that is equipped with an air heating function. Attracts with its inexpensive price and ease of use. The heater is not only able to warm the air, but also to ensure its circulation.

Cable as a heating element. The principle of using the cable, in order to warm up the greenhouse, is as follows: it is placed around the perimeter of the greenhouse, and the location of the beds. A cable connected to the network blocks the passage of cold air through the soil, thereby keeping warm air inside the room.

Water heating. Quite difficult to install and costly method. A system of pipes is installed through which heated water circulates. Thus, not only the surface of the pipes is heated, but also the air in the room. It is also worth noting that in order for the water heating system to function efficiently, only professionals should be involved in its installation.

How to choose a heating system

To choose and make heating in the greenhouse correctly, you need to correctly approach the issue and take into account the following factors:

greenhouse dimensions;
type of heating that is used in a residential building;
the amount of money that makes up the budget for the installation of the future heating system.

If the greenhouse already has a place to be, then it is necessary to make the future heating system taking into account the already finished structure. Example: it is not rational and not practical to make an expensive heating system in a small greenhouse.

Important ! Heat consumption should be rationally calculated and distributed over the entire area of the greenhouse.

Water heating installation

In order to make heating using a water system quickly, and the result was justified by expectations, you should follow a fairly simple installation instruction:

As a heater, you can use an old fire extinguisher, which has already fulfilled its intended purpose. For further use, the top of the fire extinguisher will need to be cut off.
Heating elements are installed at the bottom of the flask, the power of which should not exceed 1 kW. For such purposes, electric heating elements taken from an old samovar are perfect.
We make a cover for the heater housing from any available improvised means.
We connect two pipes from the radiator to the base of the heater. To do this, you need to use nuts, and special rubber seals that will prevent water leakage.
In order for the assembled device to work in automatic mode, it will be convenient to make a special relay with a voltage of 220 V. This mechanism allows you to block the operation of electric heaters when the water reaches the desired temperature.

Installation of air heating

To make heating using an air system, you must use the following work algorithm:

We select a steel pipe, the length of which is about 25 meters, the diameter is 600 mm.
One end of the pipe is brought outside the greenhouse, and the other is left inside the room.
From the outside, in the area located under the pipe, a fire is lit, the burning of which must be constantly maintained. Due to the flame, the air in the pipe heats up and enters the greenhouse.

Attention ! This method is very simple to perform, the only thing that requires free time is to maintain the strength of the flame in the fire.

Installation of electric heating

This heating system can be made based on the principle of functioning of the "warm floor".

In this case, instead of the floor, the surface of the soil in the greenhouse protrudes. An electric cable or water heating pipes are located in the thickness of the soil, on a previously prepared surface. To do this, remove the top layer of soil with a depth of about 30 cm. A heat-insulating material is laid on the bottom, over which sand is poured and heating elements are laid.

Advice ! So that in the process of loosening the soil, they are not accidentally damaged, a special protective mesh must be made over the pipe or cable. At the last stage, it is necessary to backfill the soil and plant the plants.

Greenhouse heating with infrared heaters

In the greenhouse, along its length, you can place several infrared heaters that will help warm the plants. On a greenhouse 3 meters wide, 6 meters long and 2 meters high, it will be enough to mount 3 devices. Be sure to mount a temperature sensor and an electrical panel with a thermostat together with the heaters.

Heating a polycarbonate greenhouse

Due to the fact that polycarbonate retains heat better than glass or polyethylene, such structures have become widespread among gardeners and gardeners. It is also worth noting that this synthetic material is very light and affordable. Installation of a heating system in polycarbonate greenhouses is no different from any other greenhouses.

Conclusion

It is very difficult to answer the question which heating is the most economically beneficial and efficient in terms of the level of heat given off. Each of the known methods has its positive and negative sides. So do right choice heating can only be a consumer who, to the best of his financial capabilities, will be able to choose the ideal option for himself.

What mistakes gardeners and gardeners make when installing heating in a greenhouse, we will consider in the next video

Possibilities of a heated greenhouse

Such conditions begin to take shape in the second half of March, so crops can be started around the middle of the month.

From April, by heating the greenhouse, you can harvest the first crop: first, onions, radishes, parsley, dill, kale, lettuces, then cauliflower and early cabbage. Tomato seedlings are planted in the vacated places, and then cucumbers.

A heated greenhouse without lighting allows you to start the season about a month earlier than usual. Acceptable conditions for plants come from the moment when the soil warms up to + 5 ... + 7 ° С. Therefore, it is more important not to heat the air, but to warm the soil. This can be achieved in three ways:

we put biofuel into the soil (the so-called warm beds, where a layer of organic material is placed under a layer of soil 30-35 cm high - dry leaves, food waste, fresh manure, which decompose with the release of heat and warm the root-inhabited layer of plant soil);
we heat the greenhouse with an underground pipeline (but timely watering will be important, since underground heating dries the soil);
we warm the soil with infrared heaters (the most natural, but also the most costly method associated with a high consumption of electricity).

Greenhouse construction

1. Covering material.

In the spring, no less a problem than heat is lighting. When choosing a material for coating, you have to look for the perfect balance of thermal conductivity and light transmission.

glass allows you to get good lighting, but gives very poor thermal insulation;
double-glazed windows are good in every sense except one: they are too expensive;
cellular polycarbonate is the most acceptable option. For sheets with a thickness of 4 mm, the loss of light will be about 13% (twice as high as that of glass), but it is 4 times warmer. For comparison, when using even a single-layer film, we already lose about 40% of the light. In a greenhouse without lighting, which is “launched” in March, a single-layer polycarbonate is enough. In the presence of light, you can make the greenhouse year-round, then polycarbonate is placed in two layers - outside and inside the frame (the same "four" is enough).

Frame.

Its strength is very important. The glass greenhouse allows heat to pass through from the inside - on a relatively clear day, the radiation from the heated soil is enough to make the snow come off the slopes. But on polycarbonate, especially two-layer, due to low thermal conductivity, no water film forms, and snow accumulates.

Requirements for the design of a heated greenhouse with an area of 3x6 m

In the drawing, the numbers indicate:

Polycarbonate with a thickness of 4 mm and a density of 860 g / m and above (for a given thickness). Lightweight is not good - it will bend and fall through the snow. High-quality polycarbonate will last at least 10 years.
Height must be balanced. The higher the greenhouse, the greater its thermal inertia (the volume cools more slowly, as if storing free solar heat for the night). But at too high a height, this heat will accumulate under the ceiling, and cold air will descend to the plants. In practice, it has been established that the optimal height of the greenhouse along the ridge is about 2 m. For example, 210-215 cm. It is convenient to walk along such a greenhouse, and it is not difficult to heat it.
Profile - welded square pipes with a cross section of at least 30 mm and a metal thickness of at least 1.5 mm. A bent profile (a steel strip folded with the letter “P”) is not suitable for our greenhouse: under load, it simply unbends, turning into a tape, and sags. Frame - fastened by lugs to pipes hammered into the ground to a depth of about 100 cm.
Expanded clay thermal insulation around the perimeter (easy to do with your own hands). If the roots of plants are allowed to freeze, then it does not matter what the air temperature will be in the greenhouse. Expanded clay dumping will protect against heat loss through the ground. For a spring greenhouse, a depth of 20 cm is sufficient, for year-round greenhouse we make thermal insulation to the freezing depth (70-100 cm). Expanded clay has a very low thermal conductivity, so a width of 10 cm is sufficient in a spring greenhouse, and 25-30 cm in a winter one. To prevent expanded clay from mixing with the soil, you can install a separator - plastic or roofing material. From above we cover the filling with a layer of soil (3-5 cm) so that it does not scatter. The backfill will also serve as drainage at the same time - it will prevent meltwater from the roof from going into the greenhouse.
Longitudinal bridges. The distance between them should not be more than 80 cm, otherwise there is a high risk of getting a "snow bag". Thus, at least 9 longitudinal jumpers are placed near a greenhouse 2 m high and 3 m wide. Some manufacturers, at the request of the customer, put 7 jumpers, but on the condition that the greenhouse is regularly cleared of snow. Of course, in this case we are no longer talking about a factory warranty.
cross section. Its length is not so important, since the polycarbonate ribs lie in the longitudinal direction. Usually make two-meter sections. Sections of shorter length are used in areas where the snow depth reaches 2 m, but this is rare.

Greenhouse heating by underground pipeline (pipes)

For the pipeline, metal-plastic or polypropylene pipes are needed.

They are laid below the root system of plants "to a depth of about 30 cm. The slope of the pipe from the top point (hot pipe) is about 1 cm per linear meter of the pipeline.

We maintain the temperature of the coolant at the level of +10 ... +15 ° С. You can use water or antifreeze - in the second case, the coolant does not drain for the winter.

The system is gravity flow: circulation in the circuit occurs due to the difference in the weight of warm and cold water.

The depth of the pit for the boiler is about 1.5 m (the deeper, the more active the circulation will be). It is enough to make a hole with a drill, install a wide metal pipe into it as a formwork and lower the boiler into the resulting “well” (it is a sealed pipe with a diameter of 10-15 cm with an inlet and outlet for hot and cold water).

To heat the coolant, you can use a conventional inexpensive electric boiler with a heating element (indirect heating boiler) with a capacity of about 1.5 kW. It serves for a long time, about 10 years.

For the sake of saving electricity, craftsmen replace the boiler by making a water jacket for it on their own, but the furnace needs an approach from below to lay firewood - in the end, such a structure will take up a lot of space.

At gravity system it is not recommended to arrange too long heating circuits (optimally about 25 m). To heat the entire greenhouse, splitters are attached to the inlet and outlet of the boiler. For example, for a two-row greenhouse with an area of 18 m 2, four contours are enough - 2 for each row 120 cm wide.

Components for such a system are inexpensive - it is quite possible to meet 5,000 rubles. But costly excavation but laying a pipeline of great length - either you have to give up greenhouse tomatoes for one season and slowly dig with your own hands, or pay workers for double moving 3-4 cubes of soil.

Infrared greenhouse heating

The good thing is that it does not require serious preparations. Infrared panels with a power of 0.7 kW are hung on wires to the ceiling of the greenhouse at a height of about 2 m - an electric sun is obtained. The panels do not heat the ceiling, they almost do not heat the air: the heat is directed to the soil and plants. For a greenhouse with an area of 18 sq. m you need 4-5 panels, they provide the necessary power even with a margin. It is not necessary to turn on all panels every night. At a night temperature of about 0 ° C, two extreme ones are quite enough, at -7 ... -5 ° C, three panels can be turned on (through one), and only if frost is expected below -10 ° C, all devices are used.

Infrared heating consumes more power than underground heating, the equipment estimate will be approximately 13,000-15,000 rubles, excluding the cost of the cable, which will also cost a pretty penny if the greenhouse is far from home. But infrared heating dries the soil less.

On a note:

Heating the entire greenhouse may be too expensive. To get radishes and early greens, as well as to plant the first batch of tomatoes, half or even a third will most likely be enough. Then the heated part must be separated from the rest of the space by a partition - at least with a dense plastic film.

On the drawing-figure 2:

On the right is an example of placing two heating circuits under a bed about 120 cm wide. It is important that the hot water lines cover the outer perimeter of the plantings.

Left: Heat rays from infrared heaters form an invisible volume in the form of cones, the bases of which overlap at the soil surface. Therefore, in relatively warm weather, it is enough to turn on 2-3 devices. They will warm up the entire greenhouse, although with less power. If frost is expected at night, all panels are turned on for more intense heating.

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Greenhouses made of cellular polycarbonate well protect vegetables and seedlings from adverse weather conditions. This material consists of two layers separated by vertical stiffeners.

Between the layers there is an air gap. The cellular structure gives the plastic high thermal insulation properties. Heating appliances make it possible to operate such a greenhouse all year round.

Heating a polycarbonate greenhouse in winter

During the colder months, plants lack the heat retained polymeric material. At low temperatures, greenhouse buildings need artificial heating. For heating use:

solar energy;
furnaces and boilers of various designs;
electrical appliances;
soil heating systems;
air and water heating.

solar energy

Long-wave radiation from the sun heats the greenhouse body, raising the temperature of the air inside it. In the cold season, thermal energy is accumulated using solar collectors. These devices have different sizes and design features.

How to set up

The solar collector converts infrared radiation into heat. For maximum effect pre-set solar heating.

The planes of the collectors are oriented to the south.
Solar panels are installed vertically or at an angle to the horizon (the angle of inclination is numerically equal to the geographic latitude of the area).
Collectors are mounted away from tall trees and walls of houses so that shadows do not fall on them.

Vertical arrangement collector has a number of advantages. If the adsorber plane is perpendicular to the ground, snow, autumn leaves and debris do not accumulate on it.

Features of solar heating

Factory solar collectors, designed exclusively for heating water in the system, make flat and vacuum. The heat exchanger of the device gives off heat to a single or double-circuit coolant circulation system.

Photo 1. Solar collector installed on the roof of the greenhouse. Usually used as an additional source of heating.

flat consist of an adsorber that absorbs infrared radiation, transparent glass and a heat-insulating layer.
vacuum They consist of a battery of thermos pipes, inside of which there are metal tubes that receive heat and transfer it to the coolant.

Homemade collectors are boxes inside which is black corrugated steel sheet. The surface of the box is covered with transparent glass. Several pipes are mounted in the body of the device. The air enters the box by gravity, heats up and exits the greenhouse building. The airflow circulates naturally, without the aid of a fan.

pros from the use of solar collectors are made up of the quick payback of these structures, the reliability of structures and a long service life ( 18-20 years old). These devices use free solar energy and heat the coolant up to 40-60 °C.

Minuses solar collectors are in their low efficiency with a short daylight, constant cloudiness and low air temperatures. The pipes of the heating system coming from the collectors must be insulated in order to reduce heat losses during the transportation of water. This leads to additional costs.

Important! At air temperature minus 15 °C and below the operation of solar collectors inefficient.

Potbelly stove and other metal stoves

Stove heating is used to heat small and medium-sized polycarbonate greenhouses. Potbelly stoves and other metal stoves (factory and home-made) are suitable for this purpose.

Heating is produced by heat emanating from the iron body during the combustion of firewood and other solid fuels. For heating small and medium greenhouses fit:

conventional ovens;
furnaces with a long-burning fuel system.

Photo 2. Heating a greenhouse with a solid fuel stove. It is necessary to constantly monitor the availability of fuel.

Features of furnace heating

Long burning furnaces have nozzles that allow air to be supplied to the middle and upper parts of the body, due to which combustible material smoldering slowly. A potbelly stove with a simple firebox quickly heats up the greenhouse, a long-burning stove generates less heat and releases it for a long time.

pros from the use of furnaces are the ease of maintenance of these devices and the cheapness of fuel.

It is easy to dismantle a metal stove and take it out of the greenhouse in the summer.
Potbelly stove and similar devices can be made independently.
Any solid fuel burns in metal heaters.
Long burning stoves burn fuel within 5-8 hours.

Minuses heating with iron stoves lie in the features of the operation of these devices.

Fuel in an ordinary potbelly stove burns out quickly and the greenhouse cools down in couple of hours.
The temperature of the soil with such heating remains low.
The greenhouse structure warms up unevenly, especially in extreme cold.
Heat is concentrated mainly under the ceiling and in the middle air layer.
For an iron stove, a large area of \u200b\u200bthe greenhouse area is allocated.
Chimney needs cleaning 2-3 times in winter the ash pan is cleaned daily.

Air

Greenhouses of any size (including giant industrial ones) heat warm air currents. This type of heating is used to heat year-round functioning and seasonal greenhouses.

Features of air heating

Used to heat air heating and ventilation generators heat. These are gas or solid fuel boilers to which air ducts are connected.

Generators are installed on the foundation or on special supports. The air is heated from the generator heat exchanger to a temperature 50-60°C, at the outlet of the pipes the temperature of the air mass is 15-25°C.

The air flow enters the greenhouse through pipes and evenly exits through special holes. Having given off heat, the air returns to the boiler for heating.

Reference. Exists three air circulation systems- recirculation, partially circulating and direct-flow.

pros air heating consist of the possibility of heating greenhouses with large areas and high speed air heating.

For greenhouses built in regions with a mild climate, only air heating is sufficient. Circulation ensures uniform heating of the entire room.
The air flow carries away water condensate from the walls of the greenhouse.
Equipment (heat generator and air pipes) are cheaper than water pipes.

Minuses air heating - the high cost and complexity of gas equipment, specialists are invited to install a heating and ventilation generator. Electricity is used to operate fans that pump air.

Water

This method is effective for winter growing vegetables. Water heating system warms the air and soil in the most severe frosts.

Features of water heating

Installed in the greenhouse building boiler(solid fuel, gas) or homemade oven with built-in tank connected to the heating pipe system.

Water passes through a closed circuit, enters pipes and radiators, cools down and returns to the heat generator.

Pipes are being laid in the middle of the height of the greenhouse or at floor level. Water circulation occurs naturally or forcibly, using a pump. To remove flue gases, a chimney is built.

Often used instead of radiators large diameter pipes, which give off heat for a long time and evenly.

pros water heating:

uniform heating of the greenhouse;
reliability and durability of the system;
in solid fuel boilers and furnaces - the ability to burn any organic fuel.

Minuses water heating:

deposited in steel pipes calcium carbonate;
metal parts and pipes are subject to corrosion;
the need for periodic topping up of water;
danger of rupture of pipes during overheating and boiling of water in the heating system;
solid fuel boilers stop for cleaning 2-3 times a week;
chimney cleaning required several times a year.

Attention! To combat corrosion and scale, it is recommended to use plastic pipes and aluminum radiators.

warm beds

Heating greenhouse beds from the inside allows you to get high-quality seedlings. To heat the soil under the ridges are laid electrical cable and pipes through which warm water circulates.

Photo 3. Laying warm water-type beds in a greenhouse. Special pipes are mounted through which the hot coolant flows.

Soil heating with a cable - features of the method

The soil is heated with a special electric cable (for example, Green Agro), which is reinforced with a metal mesh and covered with plastic. The cable is laid in a sand cushion covered with a mesh (laying depth - 40 cm). Heating is regulated from the thermostatic control panel, electricity is turned off as soon as the temperature reaches 25°C.

Reference. In the "Warm floor" system, the heating cable is laid throughout the greenhouse area.

pros this method soil heating are to create a stable comfortable temperature for the root system. The combination of warm soil and air creates ideal conditions for winter and early vegetation.

Minuses use of the cable - the complexity of installation, the high cost of equipment, the need to involve specialists and work force, high power consumption during continuous operation of the system. Plants may die if there is a power outage in winter. The cable is sometimes gnawed by rats and moles.

Features of heating beds from the inside with water pipes

To heat the soil lay plastic, ceramic or copper pipes coming from common system heating. Pipes are buried by 25 cm or carried out under the racks on which the ridges are located.

Water for heating the soil comes from a solid fuel, gas, electric boiler. The temperature of the coolant is set from the thermostat control panel, since it must not exceed 25 °C. The circulation of water in the pipes is forced.

pros heating ridges with warm pipes consist in uniform heating of the soil.

In the case of using a gas and solid fuel boiler, the system does not depend on a power outage on the site. Installation of heating is simple, you can lay pipes on your own.

Minuses This method of heating consists in the impossibility of using metal pipes, as they will quickly rust. Plastic water pipes are often damaged by moles and other animals. The heating system is necessarily equipped with a thermostat, so only complex, expensive heating boilers can be used.

electrical appliances

Electric heating is used to heat greenhouses. heaters and infrared heaters. Rarely used for heating convectors and domestic fan heaters.

IR heaters: features of operation in greenhouses

Beams of infrared lamps like sunlight. The radiation generated by the operating device heats the soil and the plants themselves. Heaters or IR film are placed under the ceiling of the greenhouse building. For greenhouses, long-wave infrared emitters are more often used. This type of heating is used if the outside temperature does not drop to extreme values.

Infrared heaters work not only from electricity, but also from gas.

pros infrared devices consist in selective heating (solid surfaces are heated, which give off heat to the air). These devices quickly and evenly heat greenhouse structures, they are reliable and durable. IR heaters do not dry the air, do not create noise, do not burn oxygen.

Photo 4. Infrared heaters in the greenhouse. Devices are installed under the roof around the entire perimeter of the greenhouse.

By cons of this type of heating include the high cost of devices, the dependence of heating on continuous power supply. The back side of the lamps gets very hot, which makes it necessary to make special fasteners that keep the lamps away from combustible materials.

Electric heaters for greenhouses: features of use

Electric heaters have different capacities and sizes. For heating greenhouses, large installations with fans are used. The heating elements of these devices are hidden under the casing, the devices are equipped with thermostats and operate in two modes. Heaters work from a household network with a voltage of 220 or 380 volts. Stationary appliances are placed in a specially made opening; strong stands are made for mobile heaters.

pros heating with a heater: warm air with the help of a fan evenly washes the greenhouse building, the device operates in automatic mode, does not produce harmful emissions and fumes. The device has a high efficiency, quickly heats the air and the beds on the racks.

Minuses: When the power goes out, the temperature drops quickly. The beds made in the ground almost do not warm up. At continuous use appliance, electricity costs will be significant.

The high temperature decreases and the oxygen reserves, consumed during the combustion of solid fuel and gas, are renewed.

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To turn a greenhouse into a year-round greenhouse or winter garden, it is enough to develop an efficient heating system. After all, for confident growth and fruiting, plants need not only light, but also heat. And if the translucent polycarbonate sheet allows you to completely solve the problem with insufficient greenhouse lighting, then the issue of providing the necessary amount of heat (especially in spring and autumn) becomes extremely acute for the owners.

A heated polycarbonate greenhouse with your own hands allows you to grow plants not only in transitional seasons, but also in winter - the main thing is to choose the right heating option and skillfully implement it.

How to realize the heating of a polycarbonate greenhouse

Before heating a greenhouse, it is worth deciding on several factors: what temperature are you going to maintain inside, how cold it is outside, how much financial and time costs you can afford.

In practice, there are many ways to heat a polycarbonate greenhouse: from artisanal options to industrial automatic installations that do not require intervention during operation.

Usually implemented in greenhouses the following types heating:

due to the energy of the sun. The main plus is the minimum cost. But solar energy can only be used in late spring and early autumn. At other times, effective heating cannot be achieved;
with solid and liquid fuel heaters. An effective option that allows you to create a full-fledged winter garden from a greenhouse. But it requires constant human participation: add fuel to the furnace, remove fireproof fractions;
with electric heaters. Heating a greenhouse with electricity is quite expensive, but efficient and convenient: heating can be fully automated, reaching and maintaining the temperature with an error of no more than one degree;
biological heating of a polycarbonate greenhouse. Traditionally used in spring. The most common option is to use cow or horse manure, which also serves as a fairly effective fertilizer.

It is worth choosing a specific type of heating during the construction of a greenhouse - after all, in some cases, serious structural changes are required. And it is better to do everything at the construction stage.

How to heat a greenhouse with the sun

A warm polycarbonate greenhouse based on solar collectors is the best option for the middle and southern regions of Russia. But for winter, this method is not suitable. It is not difficult to build heating of this type:

Initially, a solar collector should be designed - this is a system of pipelines painted black, heated in direct sunlight.
Then in the greenhouse you need to put thermal appliances that give off heat. It can be traditional heating radiators.
Connect the solar collector to the heating fittings, pour the coolant into the system. Usually water is used. It is also important to remember to install an emergency pressure relief valve.

With proper design, the system does not need a circulation pump. Accordingly, there is absolutely no energy consumption for heating, and the maintenance of such an installation is practically not required.

Furnace heating of polycarbonate greenhouses

For uniform distribution of heat throughout the greenhouse, it is recommended to make stove heating based on a water boiler. Moreover, the boiler itself should not be in the greenhouse, but stand apart. It is also easy to build such a system:

Next to the greenhouse, build a room in which to install the stove.
Mount heating devices inside the greenhouse: these can be convectors, standard cast-iron or aluminum batteries, even a floor heating system.
Lay the pipeline, not forgetting the need for thermal insulation of open sections of pipes.
Pour coolant into the system - you can use both water and antifreeze.

There are many options for heating a polycarbonate greenhouse with a stove: it can be firewood, coal, mining, gas or diesel fuel. It all depends on the type of boiler you choose and the availability of specific resources in your area.

Do-it-yourself electric heating of polycarbonate greenhouses

Heating in a polycarbonate greenhouse is more expensive than other types of heating, but extremely convenient to use. Is an good option for heating greenhouses in winter, spring and autumn, can be fully automated or even remotely controlled.

There are many ways to make a heated polycarbonate greenhouse using electric heaters. Can be used:

infrared heaters. They are installed on the ceiling and effectively warm up the greenhouse, starting from the ground itself. They are one of the economical and heat-efficient types of electric heaters, but their cost is somewhat higher than other devices;
oil coolers. The best option for small greenhouses and the organization of heating in the spring-autumn period. But when installing them, you should be prepared for very impressive electricity bills;
electric heaters with fans. They allow you to quickly and well warm up the entire volume of the greenhouse, but when installing them, you should take into account a lot of nuances. For example, one has only to send such a heater to the plants, as they will inevitably begin to dry out. It is also worth considering that models equipped with open spiral heaters burn out oxygen in the room.

Any type of heating using an open flame is also not suitable for use in greenhouses - they will simply burn out all the oxygen, which will lead to the death of plants.

It is worth noting that if you plan to operate a greenhouse in winter, then pay attention to the thickness of the greenhouse material - the thicker the polycarbonate sheets, the better they will retain heat inside the greenhouse, which will reduce heating costs.

It is also worth paying attention to a rather extravagant method: heating due to hot air.

Heated polycarbonate greenhouse - the design is quite common, it is easy to implement with your own hands. The main thing is to choose the right type of heating and pay attention to the thermal insulation of the greenhouse.