Can you heat your room for just 10 cents a day? Egloo can. Egloo is a clever little heater that harnesses candle power to heat a room without wasting electricity. Egloo works by concentrating the heat from the flame of a few candles inside a terracotta dome, radiating warmth into a room even after the candles are blown out. Egloo is a tiny terracotta heater that heats a room by candle power. It has four elements: a base, grill and two domes. Using it is a snap. Egloo’s simple, compact shape makes it highly portable. It weighs about 1 kilogram and is available in three finishes: natural, vibrantly colored and enamelled. Once you fire up the candles, the heater takes about five minutes to warm up. Non-metallic terracotta is an extremely ductile inorganic compound that has a high heat-storing capacity which then slowly conveys thermal energy to the surrounding environment.