Bromic Heating - BH051000 - Tungsten Smart-Heat Portable Freestanding Heater (Demonstration Purposes Only - Not for Sale)Product Description Up to 3 times more efficient than traditional Mushroom heaters, the Bromic Tungsten Portable Gas heater has got you covered! With its award winning, matte black finish, its a piece of modern art and a high performance radiant heater in one, creating comfortable warm environments in areas of up to 215 square feet. This highly efficient patio heater easily overcomes winds of up to 8mph and wastes little to no energy thanks to its use