●Specification: 25cm(height) x17cm(width) x 11.5cm(depth) Made from strong black steel ●Features: More efficient wood use – Use up to 28% less wood. Heat powered stove fan – increases the efficiency of your freestanding stove oven or wood / log burner to generate warmth economically. Eco-friendly and self-powered – a thermoelectric module acts as a small generator to power the fan’s motor. Operates automatically between 60 and 300°C with self-regulating speed according to the temperature in the room. Circulates at 130 – 150 CFM. Silent operation, creates a quiet and comfortable environment without using any electricity.