Guide to the selection and use of anti-condensation heaters

The power rating required to prevent condensation in a given cubicle depends upon an number of factors, including ambient temperature and relative humidity.

However, as a general guide, 10 Watts per square metre of cubicle surface area may be used.

Thermostats

We recommend the use of a separate thermostat fitted within the cubicle but away from direct radiation from the heater. See the Thermostat Data Section

Mounting

To ensure best results, the heaters should be mounted on the back plate of the enclosure with the resistor horizontal and the terminals at the bottom. This will ensure a free flow of air over the heater.

If it is not possible to mount the heater in this way, or if the air flow is severely restricted, it may be necessary to use heat resisting cable to connect the heaters.