Energy saving tips for the conservatory

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On sunny winter days, the temperature in the winter garden rises quickly and warms up adjacent rooms, on cloudy days and at night you have to heat, however, because it reacts quickly to temperature fluctuations. Especially large conservatories quickly become energy wasters, even if they are equipped with heat protection glass. With our tips you keep the heating costs low.

How much heat is necessary in the conservatory?

The costs of heating oil and gas are high. You do not want to expend unnecessary energy on the conservatory, a space where you do not spend too much time in the winter. Optimally placed winter gardens on the southern side of the house capture heat and heat other rooms. Conservatories oriented to the north lie in the permanent shade of the house and are therefore energy eaters. A glazing with a high thermal protection factor can keep energy requirements under control, as well as the right choice of plants. Choose species that match the projected average temperature of your conservatory. The plants should not require more heat than they would like to heat.

Conservatory as winter quarters

If a conservatory is used as winter quarters for frost-sensitive potted plants, it should not be permanently heated to room temperature

Choose suitable plants for the conservatory

For the planting of your conservatory from the beginning you should only choose those plants that thrive even when you heat little or no heat. Every degree of heating energy in winter causes additional energy costs. Only those who want to use their conservatory year-round as a living space, can cultivate in him tropical plants that permanently need 18 degrees or more. Because of some warmth-loving plants (for example hibiscus) to keep the whole conservatory warmer, it is not worthwhile and is not necessary, as they only need about 15 degrees for wintering. In addition, the risk of pest infestation increases with higher temperatures.
If the glass cultivation in winter is not used at all, you should set up there only plants, which tolerate even light frost. Instead, place very sensitive plants in living rooms that are warmer. Alternatively, individual cold-sensitive plants are wrapped. Bubble wrap around the pots, underlaid Styrorporplatten and fleece sleeves around the branches or leaves cause the plant to withstand a few degrees lower temperatures and can remain in cooler held conservatories.

Plants in the conservatory

How much a winter garden has to be heated in winter depends on the plants that grow in it

Conservatories heat

In most conservatories, you can use simple heaters if you just want to keep them frost-free. So-called frost guards are operated with electricity or gas and controlled by a temperature sensor, which activates the device when a minimum temperature is reached. A fan usually distributes the heated air.
For permanent heating, the conservatory should be heated by means of a radiator connected to the house heating system. Depending on the construction, the conservatory, however, has a much higher energy requirement than an enclosed space. Radiators should be separately controlled in the conservatory, so that in case of a night reduction, the heating system does not start when the heating in the conservatory request heat. The water-filled radiators also need a minimum temperature of 4 degrees, since frost can destroy the water pipes. Underfloor heating is optimal for heat-sensitive plants, but the heat from below increases the rate of evaporation and requires more frequent watering. For plants that need a rest period in winter, this type of winter garden heating is out of the question.

frost guard

An electric frost guard saves plants from freezing in the greenhouse or in smaller winter gardens, but can drive up electricity costs

Save heat in the conservatory

Captured solar energy can be kept longer in the winter garden by so-called storage media such as special heat storage walls or larger water basins. Plan such long term effective storage already during construction. A special heat protection glazing ensures that as little energy escapes.


Even if you want to save energy: you should not give up the daily airing. Because: In stagnant air, harmful fungus spores can more easily implant and multiply in your plants. Therefore, use the warmest time of the day to ventilate the conservatory for a short time. When opening the windows, open the windows only briefly, but completely, and ensure that they pass through. So a quick exchange of air takes place without the heat-storing elements in the conservatory cooling too much.It is also important to ventilate regularly to prevent the humidity from rising and moisture from forming on the glass walls.

Ventilate conservatory

When planning a winter garden, sufficient ventilation options should be considered

Shade conservatories

Sun protection is essential for a conservatory. Through targeted shading the incident light and thus the heating can be controlled. If the conservatory is illuminated intensively by the sun, it is recommended to shade the exterior with blinds so that the heat does not even get into the glass cultivation. On the other hand, an inner shade keeps the heat longer in the winter garden on cool days or nights.

Video Board: Ultraframe Conservatory | The Advanced Group | Energy Efficient Conservatories.

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