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One of the most important topics in the production of agricultural products is off-season production. One of the main reasons for the increasing prevalence of greenhouses in the world is the ability to control the climatic conditions in different seasons of the year. In greenhouses, temperature, humidity, amount of sunlight radiation, amount of oxygen and effective gases such as CO2 can be optimally controlled so that production can be carried out at the best possible time in terms of product demand and its price in the consumer market. Did. Heating systems in greenhouses have the most effects in this regard.
Types of greenhouse heating system
Heating from the greenhouse floor or central heating (by installing a home engine system and pipes installed in the floor, boiler)
Advantages: In this method, no toxic gases enter the greenhouse. It is possible to install pipes on the walls and roof of the greenhouse to prevent frost. Because the heating is through the national network of pipes, we will no longer need a fan to spread hot air.
Disadvantages: The surface temperature of the pipes must be checked regularly.
Heating through greenhouse heater and hot air furnace
Heating through a steam boiler: its working system is like a heating system and has a complex piping system. Water is heated in a steel or cast iron pot and enters the greenhouse through piping systems. After the water cools and loses its temperature, it returns to the boiler again. The pipes are made of galvanized or polyethylene, they are usually placed a few centimeters above the floor or in the floor, thus preventing the accumulation of cold below.
Radiant heating of the greenhouse: through special elements that are installed on the roof and radiate heat to the plants like pleasant light.
Advantages: Fuel consumption is reduced. The surface of the leaf always remains dry, as a result of which condensation and fungal diseases are reduced. Heat also radiates to the bottom of the greenhouse due to the emission of electromagnetic waves like the sun.
Disadvantages: When we want to heat only a part of the greenhouse, this system does not work because it is always used for heating the entire hall (with a low uniformity coefficient).
Heating through the transfer of heat from deep in the earth or geothermal
Greenhouse heater or hot air furnace is highly accepted among greenhouse owners, the advantages of this heating system can be mentioned as follows:
Lower cost than other methods
Ability to change location
Variation in heat power relative to price
Types of greenhouse heaters in terms of furnace
Iron greenhouse heater
Iron heater - greenhouse steel
All steel greenhouse heater
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