The greenhouse has a heating system. We make greenhouse heating with our own hands

Decor elements 04.03.2020

Decor elements

Heating the greenhouse is necessary in order to extend the useful life of the structure. In spring and summer, when the weather allows you to grow various crops without artificial heat sources, you can enjoy a rich harvest. However, this is not enough if it is planned to build a year-round warm greenhouse. To grow plants in a greenhouse all year round, you will definitely need to equip high-quality heating system.

Any all-season building needs proper heating. When thinking about how to heat a greenhouse in winter and spring, you first need to know that there are several ways to implement efficient and reliable heating in greenhouses in winter. The choice will depend primarily on the desire and financial capabilities.

Tools and materials that will be needed in order to make heating for greenhouses:

shovel;
thermal insulation material;
polyethylene film;
coarse sand;
measuring tape.

The first option is heating with sun rays. This method is used by a lot of people. You only need to install the building in a sunny place and cover it with special material. In most cases, ordinary glass is used.

However, this heating option in a greenhouse in winter is not suitable for all designs. Quite often at night, a significant decrease in air and soil temperature can be observed, which adversely affects the condition of plants.Therefore, this option cannot be used in the winter, it can only be combined with other methods of heating industrial greenhouses.

How to make heating in a greenhouse with your own hands? The first step is to dig a hole with a diameter of 15 cm and cover the soil heat-insulating material. AT this case polystyrene is recommended. From above, the pit must be covered with a film of polyethylene. Another layer should be filled with coarse sand. In the end, all this is covered with a dense layer of earth.

Do-it-yourself heating for greenhouses can also be produced biologically. The air inside the building is saturated with carbon dioxide. Further evaporation will occur, which is able to moisten the soil. This makes it possible to significantly reduce the need for watering. However, this method should be used along with other methods of heating industrial greenhouses.

Air and electric heating of the greenhouse

Tools that you will need in order to do the heating of the greenhouse with your own hands:

electrical devices for heating;
temperature sensor;
scheme;
fasteners.

Exists great amount options electrical systems greenhouse heating. You can use the following devices:

mats,
radiators,
heating cables, etc.

Quite often, professional devices are also used, which are equipped with a temperature sensor. This allows you to control the temperature required in a given period of time.

Do-it-yourself air heating of a greenhouse can be implemented by installing a special system. Work must be carried out exclusively by specialists. They will also be able to perform the calculation of heating for the greenhouse with their own hands.

Along the entire perimeter of the greenhouse, it will be necessary to lay a perforated polyethylene sleeve, along which heat will evenly pass.

Elements that will be needed to install a heating system in a greenhouse in winter:

steel pipe;
Bulgarian;
measuring tape.

It is very easy to make a primitive heating system for greenhouses of this type with your own hands.

The process consists of the following steps:

First of all, you need to take a piece of steel pipe.
One end of the tube must be inserted into the greenhouse, and a fire should be made under the other.

Warm air passes through the pipe, which will enter the greenhouse and heat the plants.

Furnace heating method for greenhouses

Do-it-yourself winter greenhouse can be made using the following tools and materials:

refractory brick;
masonry mortar;
Master OK;
barrel;
Bulgarian;
steel pipe;
pump;
electronic sensor;
scheme.

The construction of the stove consists of the following steps:

In the vestibule of an unheated greenhouse, you need to lay out a brick stove firebox.
A chimney structure must be placed along the entire length of the greenhouse.
The chimney pipe should be removed from the greenhouse to drain carbon monoxide. In this case, all the heat will remain inside the structure. The distance between the end wall of the system and the firebox must be at least 25 cm.

There is another option for making a stove. The sequence of actions will be as follows:

Barrel large sizes must be painted on the inside in several layers.
Inside the container, recesses should be prepared for the chimney, stove and a small tank in the upper part.
Next, you need to weld the oven from metal sheets and insert into the barrel.
The chimney must be removed from the tank. Outdoors, a minimum 5 m high pipe should be installed.
In the upper part of the structure, you need to install an additional tank of 20 liters.
Pipes are mounted in increments of 1.2 m.
In order for water to circulate in the system, you will need to install a pump.

The structure is most often heated with firewood.

Heating in a winter greenhouse (video)

Water option for heating a greenhouse

Do-it-yourself winter greenhouse can also be heated using a water system. One option is to use a thermos, which can be crafted from a fire extinguisher.

The sequence of actions will be as follows:

First you need to cut upper part designs.
At the bottom of the case should be placed electric heater.
In order to be able to pour liquid into the heater, you will need to install a removable cover in the upper part.

To make high-quality heating for greenhouses, you should connect 2 tubes that are connected by a radiator. The tubes are fixed with rubber sealing elements.

Another option for hot water heating of greenhouses

In this case, it will be necessary to prepare some tubes, a heating element and a device for welding. In the corner of the greenhouse it is necessary to place a boiler with a capacity of 50 liters and an electric heater with a power of 2 kW. Pipes are located at a slight slope.

The boiler is made from a tube. You will need to weld the bottom with a flange to it.
The heating elements must be connected to an electrical cord, and then isolated.
From scraps of the tube, you will need to make a tank with a volume of up to 30 liters. Next, you need to weld the couplings in order to fasten the boiler riser and the system.
In the tank itself, it is necessary to cut a lid in order to be able to add liquid.
Next, you need to make a pipeline of steel tubes. At the ends of the parts you need to make a thread.

The boiler body must be grounded with a copper wire. The cores are attached to the heating element phases and the boiler body.

Water heating of the greenhouse (video)

Do-it-yourself installation of autonomous heating equipment is not too difficult. You will need to prepare all the necessary tools and materials, get acquainted with what types of greenhouse heating exist, and then choose the option that is best for you.

If you follow the sequence of actions and adhere to the schemes that are developed by professionals with extensive experience, then there should be no problems in the process of organizing heating for a greenhouse with your own hands.

Gallery: do-it-yourself greenhouse heating (15 photos)

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AT middle lane Russia get good harvest heat-loving crops without greenhouses is simply impossible. If they are also heated, then from the beginning of March you can plant seedlings of any plants in it, as well as get early greens on the table. Moreover, the installation of most do-it-yourself greenhouse heating systems is quite simple and does not require special skills.

Which way to choose?

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It all depends on the goals, the type of greenhouse, the type of crops, as well as financial capabilities. If you plan to grow vegetables or flowers in it throughout the year, you will need a fully insulated building that can be heated using infrared ceiling electric heaters, underfloor heating systems or a water circuit. To heat the greenhouse only in spring and autumn, it is enough to install a potbelly stove, a gas gun or lay biofuel (manure or plant residues) in the ground.

When calculating the required amount of heat, it must be taken into account that its consumption depends on the degree of insulation of the room and the ratio of the wall area to the soil area.

It does not make sense to heat a room that is blown from all sides. Therefore, before proceeding with the installation of greenhouse heating in winter, it should be carefully insulated. For this you will need:

This method of heating provides uniform heating of both the soil and the air. Another advantage is the creation of an optimal microclimate in the room - the air does not dry out with such a heating system. Heating in a similar way is possible with the help of firewood, peat, gas, coal, or even the development of automotive fuel. Therefore, you can choose the best option, taking into account the cost of energy in a particular region.

How to make water heating of the greenhouse? Such a heating system consists of:

boiler or furnace
expansion tank, serving to store water
radiators
pipeline
pump: since it is rather problematic to lower the heating boiler in the greenhouse below the ground level, the circulation of water through the pipes is forced
chimney

Even with a circulation pump, the pipeline in such a system is best placed at a slight slope. In this case, even with a temporary failure pumping system heating will continue to function.

To calculate the heat output of radiators, the formula is used:

P = S * 120,

S– greenhouse area (at standard height walls 3 m, the calculation of the volume of the room is not required).

For example, for heating a greenhouse with a size of 3x8 m, its area will be 3 * 8 = 24 square meters. m. Find the required thermal power: 24 * 120 = 2880 W. You can specify this parameter for one section of the radiator in the data sheet.

Stove heating

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Stove heating greenhouses

So that heating costs do not “eat up” the lion's share of the profit from the sale of grown products, when choosing the type of boiler or stove, one should take into account the cost of fuel in a particular region of residence. Take care also of efficient system room insulation.

Brick structures are more complex in execution. It is difficult to build them yourself without experience. Plus for the construction of brick ovenshaving big weight, you need a strong foundation. The cost of a brick structure will be considerable. However, such furnaces are able to store heat for a long time, saving fuel. If you attach a horizontal chimney ("burs") made of metal to such a furnace, you can get an additional source of heating.

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metal oven if you have the simplest skills in working with metal, you can weld it yourself from scrap metal or even an old iron barrel. Therefore, the price of such structures is minimal.

However, if there is no radiator system in the greenhouse, the stove will warm up the air for the most part. Therefore, it is desirable to install it in the center of the room and slightly deepen into the ground. You can also raise the beds or place them on shelves where the air temperature is always higher.

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Convection and pyrolysis ovens have high efficiency. Such designs are quite complex in execution, so it is better to buy them ready-made. In convection boilers, air passes inside the casing. The principle of operation of pyrolysis structures is based on the complete combustion of gases that are formed during the combustion of fuel.

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Furnace "Buleryan", surrounded on the sides by open pipes, takes with them from below cold air. The rapidly circulating air in the room warms up faster even after a single filling of fuel. If “sleeves” are put on the lower pipes, then it will be possible to distribute heat evenly throughout the greenhouse.

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A feature of the Butakov boiler is the increased heat transfer, which occurs due to the special design of convective pipes. However, it is quite difficult to clean it from combustion products. Plus, a single bookmark will not be enough to ensure a comfortable temperature. Yes, and it heats the air unevenly. The absence of a secondary afterburning chamber significantly reduces the efficiency of the design.

Underfloor heating system

An ideal option for heating the soil in a greenhouse is also a system of underfloor heating. Indeed, for the successful growth of plants, it is the roots that need to be warmed up.

Since the heating of the greenhouse with the help of electric heating elements will cost a round sum, it is better to install a stove or boiler in it. The heating system can be combined by installing radiators around the perimeter.

For heating the greenhouse, it is better to use polyethylene pipes. They are buried to a depth of about 40-50 cm in the drainage - a layer of rubble and sand
It is undesirable to use metal-plastic for laying in the ground. After all, its fittings (connecting elements) require regular tightening. If you still decide to use such hard plastic, use compensation loops when laying the pipeline
Fits first polyethylene film serving as waterproofing
Next, a layer of thermal insulation is laid foam or expanded polystyrene
It is also possible to reduce the thermal conductivity of the soil with the help of compacted sand., which is poured over the heat-insulating layer to a height of 10-15 cm
The distance between the pipelines should be 0.36 m. To ensure uniform heating, 2 collectors are placed along the edges of the greenhouse. Pipes are connected to them in alternation
To protect the pipeline from damage during digging of the soil with a shovel or fork, slate or a metal mesh is laid on top of it
Next 35-40 cm layer – fertile soil

Heating with gas

The disadvantages of such heating include the need for mandatory coordination with special services. Moreover, you will not be able to make gas heating of the greenhouse - the drafting and installation of such systems is carried out only by specialists. Due to the high risk of ignition during operation, the operation of gas boilers will need to be constantly monitored. Due to the excess of carbon monoxide formed during the combustion of fuel, in order to avoid poisoning and the threat of an explosion, it is imperative to install in a heated room ventilation.

But still, there are many more advantages to such devices. The cost of gas is not that high. You will have to spend money only on the purchase of a boiler and equipment for it. Such designs provide uniformity and fast heating rate of the greenhouse, plus they are as easy to maintain as possible. But in order for it to warm up evenly, it is better to install heaters or connect several burners at once.

We list the main types gas equipment used for heating greenhouses:

convectors: the industry produces special devices of this type specifically for heating greenhouses; built-in heat exchanger evenly distributes heat throughout the room; ventilation in it is provided with the help of a coaxial (pipe in pipe) chimney
heater with two open burners(the second of them serves as a spare) and a vertical chimney; ventilation system installed separately
burners with infrared radiation: they are located in separate zones for local heating of certain types of crops or accelerating seed germination; equipped with a smoke exhauster that throws combustion products into the chimney; during their operation, the arrangement of forced ventilation systems is not required - natural enough

In most cases, gas heating in greenhouses is combined with water heating.. The principle of its arrangement is similar to that described above.

Thermal gas guns , used for spot heating, can be easily connected to both the gas main and the cylinder. Such structures are lightweight and mobile enough, they can be easily moved to any other place. The fuel in them burns out completely, so the risk of carbon monoxide poisoning during their operation is minimal. Modern heat guns operating on gas, are equipped with a temperature and even humidity control system.

Solar batteries

Collecting and accumulating the heat given off by the sun's rays will help to get an early harvest in the spring. Heating the greenhouse with solar batteries can also be used as an additional one. For winter period the heat received only from them will not be enough.

To accumulate solar energy, the greenhouse must be installed on the very open space and arrange it from east to west. Proved that arched structures from polycarbonate are able to "collect" maximum amount rays. Plus, the air in the cells of this material will serve as a natural heat insulator.

Solar batteries are divided into:

aquatic: heat storage in this case are water containers (barrels or pools); moreover, several small containers have an efficiency higher than one large one, because water always warms up better closer to the surface; they are distributed evenly throughout the room
stone: this material is able to retain heat for a long time, so it makes sense to lay out the walls of the greenhouse with stone or fill it with a sufficiently large layer around the perimeter of the structure
air: belong to the most efficient battery devices (see photo); for efficient heating, heat exchangers are placed perpendicular to the direction of sunlight; heated air through pipes enters the greenhouse; the intake of cold air is carried out through the second duct

When installing an air heating system in

The need to heat the greenhouse was and remains relevant. The organization of a certain temperature regime in it at any time of the year makes it possible to operate the structure with maximum efficiency.

When solving this problem, one should proceed from a holistic understanding of the need for heating, an understanding of the goals of the greenhouse and financial possibilities.

Why is greenhouse heating needed?

For the successful development and fruiting of plants, a certain constant microclimate is required. In conditions when solar energy is not enough for this, it becomes necessary to equip the greenhouse with heating devices.

To determine to what level the temperature needs to be raised, simple mathematical calculations should be made. Each crop has a known temperature that is required for its growth. Also known is the temperature of the atmosphere in the area where economic activity. Thus, the difference between these two values will give the desired result.

Sometimes a boiler is used for household needs

Plants in conditions close to optimal grow much better and at a faster rate, in addition, the crop can be harvested almost all year round. In addition to the plants traditional for our latitudes, it becomes possible to grow heat-loving plants that are typical for a hot climate. Plant growth and reproduction can be stimulated by heating the soil. In addition, the conditions created in the greenhouse will prevent the death of plants during frost or from an excess of moisture.

Criteria for choosing heating in a greenhouse

The main factors influencing the choice of heating device in the greenhouse are:

dimensions of the heated space;
type of heating device in the house;
financial opportunities.

Modern views heating equipment able to meet any customer needs. The specifics of each particular case are taken into account. Despite the fact that the organization of heating is individual in nature, one should take into account general rules, one of which is the need to create uniform heating of the entire heated volume.

Heating must be even.

Satisfying this condition is not always possible when the heating is local. It is possible to reduce the temperature difference by volume by using a fan. However, in this case, the opposite effect can be achieved due to heat loss through the cracks. Application electric heating can solve the problem. Uniform heating of the greenhouse space can be achieved using water heating or a massive convector.

In addition to the implementation of this task, heating must meet the following criteria:

The humidity of the greenhouse atmosphere should be within the limits conducive to the normal development of plants.
To minimize heat loss, it is necessary that it be supplied gradually from the lower horizons of the room.
The optimal option for organizing heating should provide for the rational use of funds at all stages of the construction and operation of the heating system.
Control and management of heating should be simple and convenient.

Heating methods

By its nature, heating can be natural and artificial.

The meaning of the first of them is widely known. In this case, when exposed to sunlight penetrating through the greenhouse cover, it creates Greenhouse effect. This heats up the soil and plants. The use of this method is suitable from mid-spring when growing crops that love warmth. To get the most of the sun's energy, you need to do right choice location of the greenhouse, which would be protected from drafts and open to sunlight.

Heating greenhouses from the sun

This method is not suitable for solving the problem of year-round supply of fresh vegetables. The problem has a solution if artificial heating is organized in addition to the greenhouse effect.

Electric heating

Electric heater

Enough convenient way greenhouse heating is the use of appliances powered by electrical energy. Electric heaters equipped with a fan are widely used due to their advantages:

relative low cost;
design mobility;
in addition to heating the room, they contribute to the movement of air;
with sudden changes in temperature in the greenhouse, it is possible to quickly maintain it at the required level;
the ability to control the temperature in a fairly wide range;
temperature uniformity throughout the room is ensured;
blowing warm air promotes the removal of condensate on the surface of the walls of the greenhouse.

Air circulation in the greenhouse

There are designs of electric heaters that are able to circulate air masses without heating it.

It should be understood that in order to create uniform air heating, most often, it is not enough to use one such heating device. It is necessary to place heaters so that hot air does not directly affect the plants, so that they are not harmed. They are best positioned so that they are below the plant racks.

Cable heating

This method of heating a greenhouse is gaining popularity, as it has several advantages:

no significant material investments are required for the installation of equipment;
the possibility of achieving savings in the process of work;
management and control of the heating system does not require special skills;
uniform distribution of heat over the area of the greenhouse.

Heating with a heating cable

In order to install the cables, it is necessary to remove the top layer of soil. At the bottom of the ditch, a heat-insulating base of sand is created. The heat insulating material must be moisture resistant and durable. In its capacity, you can use polyethylene foam or expanded polystyrene.

The cable is laid in the sand in the form of a snake. The distance between the turns should be 150 mm.

The minimum thickness of the sand layer is 50 mm. As a protection, which is located on the sandy layer, an asbestos cement sheet or a metal mesh with small cross-section cells is used. Fertile soil is poured on top of the structure, the thickness of which should exceed 350 mm.

Heating organized in this way makes it possible to create the required temperature regime according to the stage of plant development. At the same time, the yield increases by an order of magnitude. Reliable protection cable creates safe conditions operation and achieve cost savings.

infrared heating

Application infrared heaters finds more and more wide application, and they replace traditional air greenhouses in greenhouses. The relevance of infrared heating is due to the following advantages:

plant germination increases by 30-40%;
heat transfer is carried out directly to the heating object (soil, plant), so it is possible to organize zones in the room with different temperatures;
air heating comes from heated soil;
the design allows you to easily install and, if necessary, move to the right place;
energy savings is about 40-60%;
the intensity of heating can be regulated over a wide range;
the service life is more than 10 years.

Comparison of plants with and without heating

The return of such equipment is on high level at minimum investment Money and installation time. Energy is not spent on heating the air, but is used to heat the soil. In this case, there is a significant difference in the temperatures of the air in the greenhouse and the soil.

The heating element can be made in the form of a standard light bulb.

Therefore, to install it, it is enough to screw the element into the ceramic base.

Greater efficiency can be achieved by arranging the rows of heaters in checkerboard pattern. This will avoid the formation of so-called dead zones and evenly distribute heat over the greenhouse area.

Gas heating

The efficiency of using gas equipment for heating greenhouses is at a high level.

Gas heating can be implemented using various devices:

Infrared heater. It is equipped with a special chamber from which heat is transferred using infrared radiation.
Injection burner. It applied open way gas combustion. The heating rate of the greenhouse volume is high, it is possible to heat greenhouses of considerable size. This is made possible by high-intensity air circulation in the vicinity of the flame.
Water. The device is similar to the traditional heating system of a private house.

gas heating

The use of gas heating greenhouses has a number of specific features and disadvantages:

the implementation of this method is possible if there is a gas supply line or uninterrupted supplies of bottled gas;
the need to build ventilation system and organization of fresh air entry into the greenhouse;
high explosion and fire hazard of gas equipment;
installation and operation of the gas heating system must be agreed with representatives of the relevant organization.

Solid fuel systems

The relevance of burning for energy production does not decrease over time. This also applies to the use of solid fuel systems for heating greenhouses, which is due to a number of advantages:

the price of fuel is at an affordable level;
the autonomy of the system becomes possible due to the absence of the need for gas and electricity supply. This circumstance allows the construction of heated greenhouses in remote locations;
efficiency of heating units.

Solid fuel systems for heating

The following solid fuel systems are most widely used:

infrared. In fact, it is well-known to everyone, which is installed in the central part of the greenhouse. The cost-effectiveness of the design is achieved by the low cost of the heater itself and low energy consumption.
Water. All the advantages of heating systems running on gas or electricity fully apply to water heating on solid fuels. At the same time, when using the latter, significant savings by reducing operating costs.

It should be noted that such systems are imperfect and have certain disadvantages:

at all stages of the construction of the heating system, it is necessary to provide reliable fire protection;
the cost of equipment increases with the organization of the system operating in automatic mode.

emergency heating

May require emergency heating in winter

Absolutely trouble-free greenhouse heating systems do not exist. Failure may occur due to a breakdown of the unit or interruptions in the supply of energy. To save the crop, zealous owners create a backup option for supplying heat.

An emergency heating device can be implemented from improvised means. Alternatively, bricks soaked in a liquid capable of burning can be placed in a metal container. Having installed this structure near the greenhouse, they equip a pipe that transmits heated air to the greenhouse room. As a result, a thermal curtain is created.

Heating the greenhouse allows it to be used for cultivation different cultures during the whole year. This makes it possible to get up to three crops per year and grow a variety of heat-loving exotic plants by creating optimal conditions for their development.

Greenhouses can be heated different ways. Each option has a number of important features and benefits. Read information about the most popular heating methods, learn tips for choosing the best option and get to work.

Comparative characteristics fuel cost

What to consider when choosing a heating system?

When choosing a heating system, it is necessary to pay attention to dimensions premises and its type, because for different materials the required intensity of heating will also vary. For example, polyethylene is characterized by high heat loss, so this material will require more intensive heating compared to a polycarbonate greenhouse.

When arranging the heating of a greenhouse, consider the size of the total cost of installing the system and its maintenance. Some heating options require serious financial investments, and their use in small greenhouses will be impractical. Others are simple and inexpensive to set up, but consume a lot of fuel in the process.

Otherwise, the owner must decide for himself how beneficial it will be to use one or another heating option specifically for his situation. The main thing is that the system provides, does not dry out the air and creates optimal conditions for the development of cultivated crops.

Greenhouse heating options

Familiarize yourself with the main features of the systems most commonly used to heat greenhouses.

This option should be considered if it is possible to connect the heating of the greenhouse to the heating system of the house.

Laid from the house to the greenhouse, they need high-quality insulation. The power reserve of the boiler must be sufficient to provide the required level of heating for both the house itself and the greenhouse.

If the length of the pipeline between the house and the greenhouse exceeds 10 m, it is better to refuse to use such a system.

There is also a way to organize autonomous steam heating. In this case, the boiler is installed in the greenhouse. Pipes and batteries are connected to the heating unit, the coolant is supplied. Water is traditionally used as a heat carrier.

To ensure forced circulation of water, the system, as a rule, is equipped with appropriate pumping equipment.

For organization, air heated in the furnace of a special boiler is used. Such heating is characterized by minimal cash costs for fuel and high rates of heat output.

In about half an hour after starting the equipment, the air temperature in the greenhouse can rise by 20 degrees. An additional advantage of the system is the absence of the need to use any intermediate heat carriers.

Air heating is best suited for regions with a mild climate. In more severe conditions, it is recommended to use a complex of air and steam heating.

In such a system, heat is generated by the combustion of gas. It is possible to equip the system both by connecting to a stationary gas supply, and by using fuel in cylinders.

During the operation of the system, there is an intensive intake of air from the heated room, accompanied by the release of water, carbon dioxide and other wastes that are dangerous for humans and, of course, plants. In view of this, the arrangement will entail additional costs for the organization of the ventilation system.

Such heating is well suited for small greenhouses. When using it on large areas maintenance costs and complexity can be prohibitive.

Modern electric heating units allow you to equip the efficient heating of the greenhouse without much effort.

Among the main advantages of such devices, it should be noted that in the process of their work only heating of plants and soil occurs. The air does not warm up. It gradually receives heat from the heated earth. This allows you to equip the most efficient and economical heating system.

Modern systems are equipped with sensors and temperature controllers, which gives ample opportunities for dividing the greenhouse into different thermal zones and providing maximum comfortable conditions for each group of plants.

Prices for popular models of infrared heaters

The main unit in such a heating system is a solid fuel boiler, which, as a rule, works on wood or coal.

The simplest furnace heating system includes a solid fuel boiler and a chimney that goes from the greenhouse to the street. Additionally, you can complete the system with pipes and radiators, which will allow you to organize the most efficient and high-quality heating.

The chimney needs regular cleaning from fuel combustion products.

Available on the market as normal wood stoves, as well as modern ones. Such devices do not need frequent filling of fuel and consume it as efficiently as possible.

Installing a solid fuel boiler directly in the greenhouse will cause the air and soil to dry out, as a result of which the plantations grown may simply die. To prevent this from happening, when installing a solid fuel boiler in a greenhouse, it is imperative to equip an air humidification system. Usually it is enough to install a large container of water.

Stove greenhouse heating is the most popular heating option. In addition, there is nothing complicated in arranging such a system - even a novice master will cope with the work. Also, solid fuel heating unconditionally outperforms electric heating in terms of cost. That is why the procedure for organizing heating of a greenhouse will be considered using the example of stove heating.

Arrangement of furnace heating of the greenhouse

First option

First step. In the vestibule of the greenhouse, lay out the brick furnace of the stove on a pre-equipped foundation.

Second phase. Lay out along the entire length of the room.

Third stage. Lead the flue pipe out of the greenhouse from the other side. As a result, the products of combustion will be effectively removed from the room, and the heat will remain inside.

Refractory brick prices

Refractory brick

Second option

1 - heating boiler;
2 - tank-thermos;
3 - circulation pump;
4 - relay-regulator;
5 - registers;
6 - thermocouple

First step. Prepare a large metal barrel. Paint its inner surface in two layers - this will provide protection against corrosion.

Second step. Make several holes in the body. To one of them you will connect the chimney. Others will be used to connect the tap and expansion tank.

Third step. Weld the oven sheet metal and insert it into the prepared barrel.

Fourth step. Weld a piece of pipe to the hole in the barrel to connect the chimney. The total length of the smoke exhaust structure should be at least 4-5 m.

Fifth step. Install on the barrel expansion tank. A capacity of 20-30 liters will suffice. You can buy a tank or weld it yourself from sheet metal.

Sixth step. Run piping around the greenhouse. Lay the pipes on the ground with a step of 120 cm. This arrangement of the heating elements will contribute to the effective heating of the soil in the places where plant roots are located.

Seventh stage. Install to force water circulation through the system.

Turn on the water supply and make sure all connections are tight. If leaks are found, seal them immediately. Only after that you can start testing the stove and take the heating system into permanent operation.

Successful work!

Video - Do-it-yourself greenhouse heating

Boiler for a greenhouse from a gas cylinder

To work, you will need an empty gas cylinder directly, a coil (a U-shaped tube with threaded ends), metal grate, gate valve, hinges and two metal door handles. You should also prepare a pipe for the chimney, taking into account the length of the greenhouse, welding machine with electrodes, a drill and a grinder, pipes and a radiator for the heating circuit. For the front wall of the furnace, a small sheet of steel is required.

From these simple devices, a boiler with a water circuit is assembled to heat the country greenhouse.

Step 1

After making sure that the balloon is empty, we saw it with a grinder in two. One of the parts will serve as the body of the furnace, from the second we will make an ash box.

Step 2

We take the grate, make measurements and cut it so that the resulting segment fits inside the cylinder. We grab the grate by welding. Now the stove is divided into a fuel combustion chamber (2/3 of the volume) and an ash pan (1/3 of the volume).

Step 3

We put the cylinder on a sheet of steel, circle it with chalk, cut out the front wall according to the markings. Cut off 1/3 of the circle. From this piece we make the ash pan door by welding the handle and cutting out a semicircular piece for the bottom of the drawer from the second part of the cylinder.

We cut a rectangular hole in a larger piece of the wall. We weld hinges, a handle and a latch (latch) to the cut out rectangle. The door should tightly close the firebox.

Step 4

We introduce a coil (water circuit) inside the furnace. We make markings for the coil, drill two holes in the upper part of the furnace to bring out the ends of the threaded pipe. We weld the coil to the metal plate and the top of the furnace.

Trying on the coil

Step 5

We equip the chimney. We cut a hole for the pipe in the upper back of the furnace. We weld a pipe to connect the chimney. We monitor the quality, otherwise the draft and operation of the boiler will be impaired.

We weld the chimney pipe in such a way that it will pass at an inclination of about 20 degrees through the entire greenhouse. The chimney will exit through the back wall of the greenhouse, rising 1 meter above the roof. Be sure to consider thermal insulation at the point of contact between the greenhouse wall and the chimney, so that a fire does not happen.

We connect the chimney pipe to the furnace pipe using sheet asbestos and a coupling, tightening it with wire.

Step 6

We connect to the ends of the coil brought out metal pipes for the water circuit. The piping must contain an expansion tank and a pump that will pump water through the pipes.

Thus, the water heated in the coil will flow into the radiator, and when it cools down, it will again fall into the boiler. The chimney pipe will serve as an additional source of heat. Also, a long chimney will reduce heat loss, increasing the efficiency of the boiler.

Step 7

We install the oven in the greenhouse, having previously built a brick or concrete base and laying out a brick screen on three sides of the firebox. For stability, the furnace can be equipped with legs made of any fittings or long products.

We load fuel into the stove, ignite it, adjust the draft by opening or closing the firebox / ash pan door.

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