Walmart offers the Lasko 16" 5,000-BTU Oscillating Ceramic Tower Heater in Gray, model no. 5307, for $19. Opt for in-store pickup to avoid the $4.97 shipping charge. That's $9 under our February mention, the best deal now by $12, and the lowest price we've seen. This 1,500-watt heater features a self-regulating ceramic element, overheat protection, and three settings.