Walmart offers the ChimneyFree Electric Infrared Quartz Stove Heater, model no. CFI-470-02, for $44.28. Opt for in-store pickup to dodge the $5.97 shipping fee. (Alternatively, pad your order to over $50 to score free shipping.) That's $24 off list and the lowest total price we could find. This 5,200-BTU heater is rated for rooms up to 1,000 square feet and features a programmable and adjustable thermostat.