Make some space-

“Baseboard, fan-forced air and oil-filled electric heaters all have roughly the same energy efficiency, although oil-filled units are the quietest (but are also larger and heavier). You’ll have to turn down the heat enough (usually 5 degrees F or more) to offset the cost of the electricity used by the space heater and still pocket a savings. Space heaters range from basic budget models to expensive, depending on benefits like remote control, a programmable thermostat and safety features. You can buy them at home centers, discount stores and online.”