Unless you find that clanging sound soothing or like parched skin, consider turning off your radiator in favor of Crane’s compact convection heater ($50 at Bed Bath & Beyond, 620 Sixth Ave., nr. 18th St.; 212-255-3550). The four-inch-deep device—as in, easy under-bed storage—cranks a potent 1,500 watts of power without drying out the air. A 24-hour timer alleviates the need to constantly adjust the thermostat, and automatic shut-off prevents overheating while you sleep.