CO2 dosing units

Light and CO2 are essential for optimum photosynthesis and crop growth in the greenhouse. CO2 is a hot topic in the horticultural industry at the moment, with our understanding of plants’ photosynthetic response increasing and with supplies of CO2 likely to diminish in future. We know that every crop has an optimum concentration of CO2 and its own tipping point in terms of CO2 uptake. It is therefore essential for a modern greenhouse grower to be able to precisely dose CO2 from the boiler or CHP unit, both in terms of yields and costs. Using Van Dijk heating CO2 dosing units improves growth and prevents excessively high costs. And that’s been the case since 1980.

Now that growers are no longer allowed to bring in air from the boiler house for CO2 dosing because of the risk of contamination, many systems need to be adapted to draw in air directly from outside. Depending on the intake and valve position, that can result in many inconvenient detours in the pipework. To give growers and heating engineers more choice in the layout of their adapted existing units or new dosing systems, Van Dijk heating has increased the number of possible valve positions on its larger CO2 dosing units from two to three. Read more.