1) with adjustabl thermostat 2) with tip over for safety 3) with wheel for easy carry 4) with metal body Introduction* Company history: established in 2004 professional manufacturer specialized in heaters:* Industrial fan heater, ceramic heater, kerosene heater, convector heater, quartz heater etc.* Main markets: Korea,Japan,iraq ,Dubai ,Denmark, Norway, Sweden, Finland, UK, Russia, Australia, ...