When you have selected the greenhouse you want and are ready to fill it with plants and furniture, you will have to consider how warm the greenhouse should be. The same goes for the relative air humidity. All this plays a significant role in the well-being of your plants. Typically, a greenhouse will warm up automatically when the sun rays hit it. That is how greenhouses work! However, the sun may not shine all the time, and maybe you have plants that require a higher temperature, i.e., during the night. Then you will need to warm up the greenhouse. We offer different heaters, including electric fan heaters with and without a thermostat to control the temperature. In general, though, you do not need to warm up a greenhouse during the summer unless you have susceptible plants there.
On the other hand, sometimes you need to cool down the greenhouse when the sun is intense. There are two things to be done about too high temperatures – you can open the ventilation windows and sometimes the door(s) and let out the warm air. At the same time, the humidity will fall, too. Be aware of the moisture inside your greenhouse, too. A greenhouse is supposed to be warm and humid, but too much of a good thing can be bad for the plants.
Automatic window openers for your greenhouse
Many greenhouses come with ventilation openings or ventilation windows – some automatic windows will open at a specific temperature and close again when the temperature drops. If your greenhouse does not have ventilation windows, we recommend installing one or more depending on the greenhouse size. With polytunnel greenhouses, you can open the door(s) to let out the warm air and humidity. It is a good idea to have a thermometer and a hygrometer inside your greenhouse so you can keep an eye on the indoor climate at all times. Having one or more automatic window openers will take care of the temperature and humidity at most times. Another option for regulating the temperature is the shading net that you place in front of the window panes – preferably on the side where the sun comes in. This with protects the plants from too much direct sunlight and heat in general.
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