ENVI HEATER. Electric convection heater that circulates air without a noisy fan. Mount to an inside wall. Cool to touch. Built-in overheat cutoff. Slowly warms a room (about 2 hours). Keep the door to the room nearly shut. This keeps my cold bedroom really warm and only takes 1 hour to heat the room if I turn ceiling fan on. With door almost shut, the room maintains 72°. They claim it costs 4 cents per hour to operate. (HH1012T) For my small basement, I use two of these and they are great!