The Manhattan Portable Gas Heater has a unique heat flow system that draws cold air in through the bottom of the fire and releases warm air out of the top vents. No flue or chimney is required - simply connect it to a butane gas cylinder. It features a real flame effect with a safety oxygen depletion cut-off device, variable heat settings, and castors for easy movement. The heater measures 67.5cm in height, 37cm in width, and 51cm in depth.