EASY TO USE For convenience and ease this ceramic plaque cabinet heater comes complete with a regulator and hose that fits easily to a 15kg Butane bottle (not included). Ideal for a home or office environment. PIEZOELECTRIC IGNITION - Piezoelectric push-button ignition system allows for trouble free start up. EFFECTIVE OUTPUT With three heat settings the output ranges from 1.55 to 4.2kW (5,288 to 14,330Btu/hr). SAFETY - Features flame failure device, anti-tilt switch and oxygen depletion system. PORTABLE No power supply required, the 15kg Butane bottle (not included) fits comfortably into the rear of the unit and can be manoeuvred into any desired area on its 4 supplied wheels.