Greenhouse Heating

Greenhouse Heating

The first greenhouse heating systems enabled Dutch growers to extend their growing season over a century ago. Today, heating systems remain a crucial element in commercial greenhouses around the world. When looking at climate, the first things to notice is the temperature during the day, the temperature at night and the levels of relative and absolute humidity. Many greenhouse crops require a temperature difference between day and night for proper fruit set. In many cases, the 24-hour average temperature should be above 18 degrees Celsius. To achieve these conditions, a greenhouse heating system is in most cases the first technical installation that should be considered. The maximum possible temperature difference in the Dutch greenhouse, the Delta T, is what the heating systems are designed for.

Radiant heating in greenhouses

Heating a greenhouse is traditionally done by using a central gas boiler that heats water that is distributed in the greenhouse. This method of radiant heating works on the same principle as the average central heating system in homes. The temperature and flow of the heated water throughout the greenhouse can be accurately controlled with automated pump- and valve systems.

Do you want to know more about heating in greenhouses?

Heat Sources

In a radiant heating system in greenhouses, hot water is pumped through a closed network of pipes. The source of this warm water is very important to create a future-proof climate system in your greenhouse.