Amaze- Heater 100-Watt Ceramic Electrical Under-Desk Space Heater
At Home Depot
100-Watt, 120-Volt Under-Desk Space Heater works on principle of natural convection and is designed specifically for office applications. Comes with Heat Reflector to minimize heat loss into back support surface and Ezymount stands. So that no holes need to be drilled in the back support surface.