Powered by alcohol, this ethanol burner produces plenty of heat and real flames efficiently and keeps you warm and cosy, without the worry of smoke and ashes.0.9L burner capacity will power this bioethanol fireplace for roughly three hours - great for keeping cosy in the evening. Great for keeping you warm as you relax in the bedroom, living space or by your desk as you work. Small, but mighty.Note: No fuel included, require alcohol ≥ 95%; The front window of the fireplace has no glass; Do not add fuel while the fire is burning.