RugBuddy Speedheat 500 Under Rug Space Heater (7' 9" x 5' 3") Reflective layer underside improves efficiency Plug-in comfort and warmth at your feet over tile, wood, vinyl and carpeted floors Invisible: Fits snugly under 6' x 9' area rug. Save energy by only heating the rooms you are using. Safe: No risk of fire or shock.