Do I need to add CO2?
Adding extra CO2 beyond that which comes through ventilation can increase plant or fruit growth above natural circumstances.
It’s particularly important if your greenhouse isn't well ventilated, as CO2 struggles to get to the plants, meaning that photosynthesis stops and your plants stop growing.
But how can you add extra CO2? We do it by recovering the CO2 out of the combustion process of your boilers and rerouting it back into your greenhouse.
We've also developed a special delivery system of liquid CO2, too. It's extremely accurate and delivers the exact amount of CO2 required to each plant.
How can I keep my greenhouse warm?
It's important to keep as much heat inside as you can, so start with insulation. After that, any form of heat can be used. In large greenhouses, hot water is most common. Known as a 'hydronic system', hot water is heated in a boiler and then piped around the greenhouse and between plants via multi-purpose tube rail systems. The temperature and flow of the water can then be accurately controlled with automated pump and valve systems.
For smaller greenhouses, warm air is an economical option. The warm air is created by heaters run on natural gas, petrol or diesel—which also generate CO2 that can be used to enhance plant growth—and then distributed with a fan and a heat exchanger. Remember, it’s important in a climate-controlled greenhouse project that heat is distributed evenly for optimum crop production.
What is a boiler?
Just like the boiler in your home, a greenhouse boiler is a large tank with an internal furnace and pipes. A burner (gas, oil or coal) heats the furnace and the pipes. In turn, these pipes heat the water that is pumped through the boiler. Unlike household boilers, greenhouse boilers can be positioned away from the greenhouses themselves, making it easier to control noise and space issues.
Why do we need screens?
Screens help to stabilize the climatic conditions in the greenhouse to save energy. In cold climates, screens can achieve up to 50% heating energy savings, and in some cases even more. In hot climates, they assist with shading to reduce temperatures and save on energy for cooling. In the flower sector, blackout screens assist in defining the exact hours of day and night.
Screens come in three main variants: horizontal, which use a pull-push rod or a pull-wire system, in which the fabric profile and the fabric move together along steel pipes; vertical, which attaches to the facade inside and can be operated manually or by a control system; and external, which ensures less heat build-up in the greenhouse.
We regularly work with our customers to come up with a screen system that fits their specific crop needs. And, working with the leading screen-cloth suppliers, we can supply a solution for shading, energy-saving, and blackout—or even all three.