One way to conserve energy is to simply just heat the room that you are actually in.
This portable, whole-room heater quietly and efficiently circulates heated air up to 80 feet. Automatic climate control adjusts to maintain the perfect temperature; a touch-panel LED screen and remote control make micro-adjustments easy. Two speeds: 800 or 1500 watts, with a fan-only option for summer use. On/off programmable up to nine hours. Cool to the touch, the unit features tip-over and over-heat protection. USA.