To answer this question we must first calculate the amount of heat lost. All conservatories lose heat through the walls, floor, doors and windows and in order to raise the heat in a conservatory you must replace the heat quicker than it is being lost. Therefore to raise the temperature in a conservatory the output of your heaters must exceed the amount of heat being lost from the conservatory.
If the output of the heaters is less than the heat loss of the conservatory the indoor temperature will fall. This normally results in heaters running continuously, not cutting in and out on their thermostat and creating a less comfortable environment.
Only when the output of the heaters is greater than the heat loss of the conservatory will the temperature rise. Comfort heating will be maintained; the heaters will be cutting in and out on their thermostat and creating a far more comfortable environment.
To assist in your selection we have provided a simple heater calculation chart which will ensure that you never under heat your conservatory. It is not a replacement for detailed heat loss calculations, which if required should be carried out by a suitably trained and qualified person.
Our selection chart is a simplified tool designed to provide a quick calculation of heater requirement for typical modern designed conservatories. If you have a conservatory of unusual construction and shape or where doors or windows are permanently open please contact our sales hotline.