Dreo Space Heater Showdown: Fast Tested, Large Rooms Compared... Office Buyer’s Insight! We recently tested the Dreo 1500W PTC Ceramic Heater in our office and a large bedroom, and the results were impressive. The 70° oscillation covers wide areas efficiently, while the automatic thermostat keeps the temperature consistent without overheating. Our favorite feature is the 1-12H timer, which allows us to schedule heating sessions for When We’re Not Around. The remote control adds effortless convenience, and the PTC ceramic technology ensures fast, safe warmth. Though it’s powerful enough for expansive spaces, we noted it might be too intense for very small offices without a thermostat. Overall, the Dreo Heater strikes a perfect balance Between Power, Safety, and Practicality, making it a solid choice for anyone needing reliable indoor heating.