Walmart offers the Polyfiber 26" Electric Fireplace in Tan, model no. MP2300-26F, for $179 with free shipping. That's the lowest total price we could find by $108. It features 3,750 BTUs and can heat a room up to 325 square feet.
Best Buy via eBay offers the Lasko Ultra Ceramic Electric Fireplace Heater, model no CA20100, for $65.99 with free shipping. That's tied with last week's mention, and aside from the mention below, the lowest total price we could find by $6. It features a 1,500-watt heater with two heat settings, carrying handle, and automatic overheat protection.
A couple close prices: Walmart and Amazon offer this heater for $67.01 with free shipping.
Walmart offers the Decor Flame Electric Fireplace TV Stand, model no. M907L-42FBK, for $159 with free shipping. That's the lowest total price we could find by $121, although we saw it for $10 less three days ago. It fits TVs up to 37" and includes a 1250W electric space heater with digital flame effects.