High gas prices are an unfortunate problem for a large number of growers. Entrepreneurial risks include variability of your energy costs. Agreements with energy suppliers are made in advance, but the quantity of gas purchased is inconsistent and unreliable. This could cause your costs to be much higher than necessary in the end and eventually lead to a decrease in efficiency. With these high prices, there is an incentive to use more innovative greenhouse technologies to improve energy efficiency.  

Temperature control in greenhouses requires a high energy demand. By cold or high temperatures, the climate should be adjusted to ensure the right growing conditions. When you invest in isolation by using anti-condensation film, shading screens, and fixing leaks, your energy costs will decrease, however, the greenhouse will become very humid. Excessive humidity in greenhouses causes different crops to be vulnerable to fungi and that should be prevented. This problem is traditionally solved in the following ways:  

• Additional heating: you increase the pipe temperature. This way, you stimulate evaporation, and plants will produce more moisture.  
• Gaps in screen cloth: you create gaps in the screen cloth and the moisture is discharged and condensates against the cold glass. This results in an uneven climate and cold trap on the crops.  
• Open windows: you open the windows and lose heat and CO2. 

In these traditional ways, you ensure a better greenhouse climate, but you still lose a lot of heat and CO2. This results in relatively high gas prices. DryGair Dehumidifiers offer a solution to excessive greenhouse dehumidification, enabling growers to improve temperature control without losing heat and CO2. 

A DryGair unit draws moisture from the air and and circulates it. The fans in the units circulate 22,000 m3 of greenhouse air per hour per unit. The panels in the unit are very cold, and warm greenhouse air will condense against it instead of against the greenhouse cover, as it used to. Not only the tangible but also the latent heat will remain in the greenhouse. This allows you to keep screens completely closed. 

Growers that already make use of the DryGair unit indicate that major savings can be made, sometimes up to 50%. Meanwhile, gerbera nursery Jac Oudijk uses 19 DryGair units on 7 hectares. Read their story here.  
 
''The improvement of the greenhouse climate is major' (according to Wilco Westerman of gerbera nursery Jac. Oudijk) 

Using DryGair you get maximum energy efficiency, due to the unit’s low energy consumption. With this system you no longer need outdoor air; only the greenhouse air present is being treated. Thanks to the DryGair unit the greenhouse has a uniform climate. The greenhouse temperature and RV remain even. Due to the combination of reducing the relative humidity and the air circulation through the Drygair unit, the minimum pipe temperature becomes redundant in many cases. 

Whether you grow tomatoes or roses, and whether your greenhouse measures 7 or 20 hectares: there is a suitable DryGair unit for every greenhouse and every crop. Based on plant evaporation, heating, and cooling, a specialist can assess how many units are required to reach the desired climate. Subsequently, the payback time can be calculated. Our specialist Eef Zwinkels will be happy to help you.  

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