Climate Systems

Managing temperature is the key to successful crops

Creating the most fertile environment possible

Humidity and temperature play a crucial role in crop growth and success. Improper humidity levels can wreak havoc on crops. 

Low humidity leads to excessive transpiration and crop damage. On the other hand, extremely high humidity creates the ideal breeding ground for fungal infections and diseases, putting plants at risk.

Pad & Fan Cooling System

The prevailing greenhouse cooling solution

Pad and fan cooling systems work by using evaporative cooling to reduce temperatures inside greenhouses. It is a highly effective system for greenhouses in Greece, particularly in areas with medium to high humidity levels. It safeguards the optimal conditions for plant growth even during hot summers with wild temperature fluctuations.

By utilizing this cooling system, producers can maintain production levels while others may struggle, giving them a competitive advantage and the opportunity for significant profits.

Advantages of Pad & Fan cooling systems:

A specially designed water distribution system supplies water evenly over a wide cooling surface, which cools the surrounding air.The cooling surface is made of special cellulose sheets with grooves put together with special treatment that ensures longevity and high quality.
On the opposite side of the greenhouse, fans are installed to create a zone of negative pressure, forcing air to pass through the cooling surface, become cold and enter the greenhouse’s interior with increased humidity levels. The main climate control computer continuously controls and regulates water pumps and fans, in order to achieve optimal climate conditions for crop development.

Recirculation Fans

An essential component for regulated temperatures

Key to consistent crop development, recirculation fans distribute air, reducing water vapor on leaves to prevent diseases. They eliminate hot air pockets and minimize heat loss during winter. Moreover, they aid CO2 distribution for optimal plant absorption and prevent temperature variations from the heating system.

Fog: High-Pressure Cooling System

Industrial humidification with incredible precision

A fog cooling system uses stainless steel pipes and specialized nozzles to release a fine mist that reduces temperature and increases humidity in greenhouses. It operates at a pressure of 60 to 70 bar and integrates seamlessly with the central climate control system for precise control and optimization.

Fog: Low-Pressure Cooling System

Cost-conscious cooling and moisture regulation

A low-pressure cooling system is a cost-effective solution for moisture problems. It is installed on the greenhouse roof and uses plastic nozzles on tubes to create small droplets. The system operates at a nozzle pressure of 4 to 6 bar and a specialized controller prevents plants from getting wet.

Screening Systems

Energy efficiency and sustainability

Screen systems serve a multitude of functions in modern greenhouses. They protect plants from harsh sunlight that doesn’t help them thrive, they aid in greenhouse energy conservation and even create the unique conditions that crops need in order to perform optimally.




Shading and energy-saving screens provide the necessary shading to the crop while reducing the energy consumption by 40 – 60%.

How they work:

The screens reflect sunlight to cool the greenhouse during warm days and trap heat at night or during winter, reducing energy consumption. They offer precise control over humidity, temperature and UV radiation, ensuring consistent production and a comfortable work environment.

CO2 Supply System

CO2 is crucial for plant growth and production through photosynthesis. Maximizing CO2 levels enhances plant activity, increasing greenhouse productivity

High CO2 concentrations reduce daytime ventilation, capturing more energy for nighttime heating, saving costs.

In leafy crops like tomatoes, CO2 supply is recommended, even during ventilation provided there is no strong air streaming. It can be used independently, with open or closed windows, and artificial lighting. The central computer enables easy control and setting of the CO2 supply, with alarms for minimum and maximum concentrations.

Heating System

Greentech offers reliable and smart heating systems for high-quality production. The system is perfectly balanced and controlled through a climate control computer.

Heating sources can be boilers fueled by liquid, solid, gas, or hot water from geothermal sources. Circulation pumps and a network of pipes distribute hot water throughout the greenhouse, with the option of water-air heaters for precise control.

Total Heating Control

The climate control computer regulates the heating system, maintaining optimal greenhouse temperatures. Ground and peripheral pipes, along with air heaters if needed, ensure optimal plant growth. The heating systems work together, activating the secondary system when an additional temperature increase is required.

Greentech’s heating systems meet building codes, Greek official standards, and international guidelines to ensure high efficiency and optimum energy conservation.

Savings in energy and fuel

During cold periods, the high production costs in greenhouses are primarily driven by fossil fuel expenses. To address this, global efforts have focused on reducing the reliance on fossil fuels and achieving energy and fuel savings.

Several methods have been employed to save conventional fuel in greenhouses:

These approaches promote sustainability, reduce reliance on fossil fuels, and achieve cost-effective energy management.

Boiler-Burner Selection

Greentech offers a range of boiler options, from conventional types such as liquid fuels and natural gas boilers to solid fuel (biomass) boilers.
We conduct detailed studies to determine the most suitable heating system and fuel type based on site location, climate conditions, energy requirements, costs, and availability. This ensures sustainable and cost-effective operations.

Pipe Heating Installation

Greentech provides reliable piping systems that ensure uniform heating throughout the greenhouse and boost productivity.

From business plan
to after sales