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Heated greenhouse or how to make a warm floor in a greenhouse with your own hands

Heated greenhouse or how to make a warm floor in a greenhouse with your own hands


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Greenhouses were created by man in order to be able to cultivate cultivated plants regardless of the season outside the window.

One of the most important questions associated with cultivating the soil behind the glass of a greenhouse is “How to provide optimal microclimateable to support the growth and well-being of plants even in severe frosts? "

To do this, you should pay attention to the various ways of heating the soil. In this article, you are presented with various types of heating greenhouses due to warm soil, which you can easily do yourself.

Why do you need soil heating in a greenhouse?

Heating the soil in the greenhouse has a fairly large number of advantages:

    • Rapid ripening and growth of the crop;
    • The possibility of thermoregulation, creating a special microclimate necessary for growing new crops, more fastidious or thermophilic;

  • Growing seedlings in colder seasons;
  • Extended harvesting period;
  • Heating the soil accelerates the development of roots, rhizomes, tubers and other underground organs, which significantly strengthens the plants;
  • Many soil heating devices are also capable of producing a slight bactericidal effect;
  • Energy saving: most modern heating systems have an extremely high efficiency (about 90%).

Soil heaters perform their function without reducing the oxygen content in the air, which significantly saves ventilation costs, so that a heated greenhouse is not only convenient, but also profitable. Moreover, heating the soil in the greenhouse with your own hands is available to everyone.

What are the types of soil heating systems?

So, in order to organize a warm floor in a greenhouse, you need to understand what soil heating is. It is of several types.

Water heating. Many people have a question, is it possible to organize soil heating in a greenhouse with water? Yes, absolutely. The principle of such a system is similar to the principle of operation of a warm water floor, through the pipes of which hot water circulates. Otherwise, it is heating the soil in the greenhouse with plastic pipes.

The system is quite economical in terms of the resources used, but some difficulties with installation may arise.

Best to use water heating for large greenhouses and greenhouses, as well as for buildings located in the immediate vicinity of a residential building.

Electric heating. This type of heating system is quite popular due to the fact that all components, such as heating cables, films and mats, are quite widespread nowadays.

So it will not be difficult to get and install the soil heating system, which is based on the above electrical elements. but price of these components and electricity tariffs can be high enough.

Bioheating. The most economical type of heating. The basis of soil bio-heating is biomaterial (for example, manure, sawdust or fallen leaves), which decomposes with the release of heat.

Soil bio-heating is not only about creating optimal temperature for growing plants in cold seasons, this is also an additional fertilizer.

For the best effect, you should not use pure materials, but their combinations: manure with straw, sawdust with bark, sawdust with manure and bark. Before you lay the biomaterial into the soil for the greenhouse with your own hands, you need to steam it.

What is the best way to heat the ground in a greenhouse? There are several heating methods: processing with quicklime, boiling water or heating in the sun in a loosened form. Biofuels are ready for use when steam starts to emanate from them.

Disadvantages: firstly, the temperature can be reached relatively low (up to 25 degrees Celsius), which will gradually drop over several months. Secondly, it is impossible to regulate the temperature in the greenhouse.

Greenhouse soil:heating with heat guns. An aggregate such as a heat gun is perfect for heating a large greenhouse, but the cost of the equipment is high, and the soil is heated only on the surface. In our article, we focus specifically on the heating of the soil.

The most efficient, easy-to-install and comparatively cost-effective way of heating the soil in a greenhouse is precisely water heating.

We will describe in detail about its self-installation in the next section.

Do-it-yourself water floor heating

As already said, soil heating system laying pipes with hot water circulating through them will be most effective if they are located near a house with a local source of hot water. In this case, a domestic hot water boiler or boiler can be used as a water heater.

If the greenhouse is located at a great distance from the residential building, then pipes can be laid from the house to the greenhouse underground.

For this, additional forces and resources will have to be spent in order to insulate the pipes that pass along the street.

And also install an additional heating device directly for the greenhouse.

Heating system elements:

  • heating boiler or stove;
  • pipes;
  • expansion tank;
  • chimney;
  • circulation pump.

Pump action is not necessary for water circulation. In budget options, water heating usually functions due to the difference between the pressures of hot and cold water.

The expansion tank can be either open or closed. It is necessary and can be either purchased or soldered on its own.

The type of heating boiler can be different:

  • gas boiler;
  • electric heating boiler;
  • solid fuel boiler;
  • a brick or metal stove on coal or wood.

The last option is the most convenient from the point of view profitabilityand in terms of ease of installation. It is not difficult to assemble a small brick stove with your own hands, and you can use not only coal and firewood, but also sawdust and any other wood and paper household waste as fuel.

In accordance with the selected heating source, the chimney is also selected:

  • ordinary brick chimney;
  • from a mixture of asbestos and cement;
  • metal pipe;
  • double-sided "sandwich" pipe.

A photo

Look at the photo: heating the soil in the greenhouse with your own hands, the scheme of water heating,

Installation of soil heating system

  1. Stove or boiler can be installed both in the dressing room of the greenhouse, and directly inside, the main thing is to build a foundation for them. For a brick stove, a concrete foundation is best, and for a metal one, from a sheet of steel or a covering material made from a mixture of asbestos and cement.

    ATTENTION: The most important thing is to provide the structure with maximum stability and comply with all fire safety measures.

  2. Chimney... The seams between the parts of the chimney and the gaps at the joints with the furnace or boiler must be hermetically sealed to prevent smoke from entering the greenhouse. When sealing the joints with mortar, it is necessary to use clay, since it is the most heat-resistant.

ATTENTION: Regardless of the heating method in a winter greenhouse, an air ventilation system is required.

  1. Only metal pipeshaving the same diameter, and the length of the pipes may vary. Plastic pipes can be installed only at a distance (at least 1-1.5 meters) from the boiler.
  2. Before starting the installation of the soil heating element itself, it is installed expansion tank... It should be located at the highest point of the building, close to the stove or boiler, and an automatic air shut-off valve and pressure gauge are installed for maximum safe operation.

We proceed directly to the installation of the soil heating element itself:

  1. At the base of the greenhouse is laid heat insulating material... The most economical option is polystyrene with a layer of 0.5 cm. For maximum efficiency, it is recommended to lay insulators with foil: penofol, isolon, etc.

    An alternative option is special mats, they are used to make warm floors for the greenhouse. They not only protect against heat and energy loss, but also allow the most reliable fixation of hot water pipes.

  2. Plastic water pipes are placed on the film.

    ATTENTION: Do not use steel tubes, as the moisture in the soil will corrode them, leading to the destruction of pipes and soil contamination.

    It is also best not to use pipes with low heat transfer rates, as such pipes emit a minimum of heat. It is necessary to lay pipes starting from the walls, gradually moving towards the center of the room.

    With this arrangement, the processes of cooling and transfer of energy from the pipes to the ground will occur evenly throughout the entire area of ​​the greenhouse.

  3. The pipes are connected to heating system... It is also recommended to install a thermostat on the heater so that the water temperature can be automatically adjusted.

    ATTENTION: A safe and beneficial temperature for plants is 35 to 40 degrees Celsius.

  4. Water heating pipes are covered with a layer of soil about 40-50 cm. This thickness is optimal for plants, as it prevents thermal damage to the roots.

At first glance, heating greenhouse soil may seem like a daunting task.

Naturally, the installation of such structures will require certain tools and skills, but by applying all your perseverance and information from our article, you will certainly achieve success and receive a reward in the form of a summer-blooming greenhouse garden in the winter cold.

Watch the video: how to make warm floors in a greenhouse


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