This ball shaped gas heater, model "2000", was designed by Richard Wolthekker for Faber in the 1960's. It is a beautiful minimalist space age design. There were only 1000 of these gas heaters made. This is the original and hard to find orange version. This heater is in a good condition with some signs of age and use. A true eye-catcher in your livingroom or lounge area. We have not tested the heater.