Walmart offers this 1,500-watt 17.5" Electric Stove Heater in Glossy Red, model no. QC115-GRD, for $29.88. Opt for in-store pickup to avoid the $4.97 shipping charge. That's the lowest price we could find by $10. It warms rooms of up to 325 square feet and features a 3,750-BTU heat output and realistic flame effect.