To choose your infrared panel sizes you will need to calculate the wattage required to heat your room. Wattage is a measurement of the minimum power output of your heaters. You can use our infrared calculator to work out an estimate of the wattage required to heat your room or contact us for a no obligation quote. After determining the wattage, you will need to choose a panel or combination of panels that adds up to your required wattage. If you find yourself with a choice between panels of a higher or lower wattage than your recommended total, always choose higher. Under-specifying your heating will force your panels to work harder to heat the space, decreasing their efficiency and shortening their life span. Over-specifying will not cause overheating or be more expensive to run. More powerful panels will heat the space easily and, if fitted with a thermostat, will simply switch off when the room reaches temperature – providing you with comfort heating at optimum efficiency. If the building has high ceilings, poor insulation, or any factors that contribute to heat loss, we recommend getting additional. Choosing the most suitable type of panel should be based on the available mounting position (ceiling/wall/floor), wiring (hard-wiring or plug-in), look/aesthetic, etc.