As one of its daily deals, Woot via Amazon offers the Econo-Heat 400-watt Ceramic Wall Panel Heater in White, model no. 603, for $66.99 with free shipping. That's the lowest total price we could find by $23, although we saw it for $2 less in spring. It purports to use one third less electricity than typical space heaters and heats rooms up to 120 square feet. Deal ends today.