In this instructable I use the hot dry air produced by monitors and TVs to slowly air dry the chillies. There is not really any need for a food dehydrator or drying cabinet when electrical devices are already pumping out hot air. Air vents are usually hidden behind devices, and dissipate heat in a gentle waft. An infra-red thermometer demonstrates how hot and useful this wasted energy can be.
Dried chilli can be rehydrated in hot water, or crushed and sprinkled into sauces. The large cayenne chilli peppers shown here are traditionally ground to make cayenne pepper, the orange spice used in hot food. I also dry some small fiery Apache chillies.