Heating systems: Most of the intensive cultivation in greenhouses has cycles that occur during the cold season, a drop in the temperature of the plants below the optimum minimum causes different physiological disorders, ailments, vegetative halt, etc. Moreover the appearance of freezing weather with extremely low temperatures of sufficient duration can produce the death of the plant or the total loss of the crop. In Agrintel we have much experience in the installation and maintenance of heating systems capable of providing the ideal temperature for your plants, with the best solutions to adopt for your greenhouse, your geographical location, the different fuels available, etc., in an integral format and always with a view to a profitable investment. Our technical department, after an appropriate study, can offer you the best solution for installing your heating system with sufficient power and the essential elements for a proper operation.
Heating system with hot-air generators: The heating systems with hot-air generators are systems recommended in locations with mild minimum outdoor temperatures, with plants that do not have a very demanding optimum minimum temperature, or for projects where the aim is to undertake an improvement in the operation by means of an earlier growth and production of the crop in cold periods with a moderate level of technology. They are also a suitable solution in projects where it is only necessary to have an equipment to operate as a safety backup to counteract freezing conditions. The operation of a hot-air generator consists in the generation of heat from a given fuel in a hearth, an integral part of an air-to-air heat exchanger. The fuel is burned in the hearth with the help of an atmospheric or pressurized burner, according to the model. On the secondary side of the exchanger the heat is evacuated into the greenhouse air, usually with the use of a helical fan. An appropriate number and arrangement of the generators, together with an adequate air flow and range of the fans, allow an adequate distribution of the hot air throughout the whole greenhouse. 
A heating installation with hot-air generators (H.A.G.) consists of: - Fuel storage and supply installation
Fuel supply networks: bank of pipes, valves and fittings, filters and pressure regulators that feed each hot-air generator. Electrification network. Hot-air generator: burner equipment, combustion chamber, air-to-air heat exchanger and fan. It has all the safety devices regarding ignition and operation required for appliances that use fuels. For gas-oil and poly-fuels, the generator will expel the combustion gases to the outside of the greenhouse after they pass through the exchanger (H.A.G. with indirect combustion). In generators that use propane gas or natural gas, the gases can be released inside the greenhouse after the necessary monitoring of the renewal flow of the air used in combustion (H.A.G. with direct combustion).
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Air Heating
