Dreo Space Heater Reviews, Dreo Space heaters for indoor use, Fast Heating Ceramic Electric & Portable Heaters with Thermostat, Oscillation, Overheat Protection, for Indoor. Experience Cozy Warmth Anywhere: Dreo Space Heaters provide efficient 70° wide-angle heating, enveloping your room in warmth from all directions. Perfect for large rooms like offices, bedrooms, and living rooms.